CN108366182B - Calibration method and device for synchronous broadcast of text voice and computer storage medium - Google Patents

Abstract

The embodiment of the invention provides a calibration method and a device for synchronous broadcast of text voice and a computer storage medium, wherein the calibration method comprises the following steps: the character display unit receives the voice recognition character string sent by the voice broadcasting unit, determines the characters displayed in each line, and automatically scrolls the characters displayed in each line at a preset scrolling speed; the character display unit obtains line feed information corresponding to each line according to the characters displayed by each line, and sends the line feed information to the voice broadcasting unit; the text display unit receives the broadcast line number sent by the voice broadcast unit, wherein the broadcast line number is the line number sent when the actual broadcast progress of the voice broadcast unit reaches the line feed information corresponding to each line; the character display unit determines the current scrolling display line number, compares the display line number with the broadcast line number, determines an error value, and adjusts the scrolling speed of the characters displayed on each line when the error value exceeds a preset threshold value.

Description

Calibration method and device for simultaneous broadcast of text and speech, and computer storage medium

technical field

The present invention relates to the technical field of intelligent systems, and in particular, to a calibration method and device for simultaneous broadcast of text and speech, and a computer storage medium.

Background technique

Most of the prior art solutions for simultaneous broadcast of text and speech use the method of presetting time stamps, such as movie subtitles and dynamic scrolling of lyrics. Its characteristics are that the broadcast content and broadcast duration are known.

However, for random voice question and answer, text and voice are played synchronously, and the broadcast content and broadcast duration are not fixed. The method of pre-setting timestamps in the prior art is not applicable. In this case, it is impossible to present a better text-voice synchronization for the user. broadcast method.

To sum up, in the prior art, when the text and voice are broadcast simultaneously, the user experience is poor.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide a calibration method and device for simultaneous broadcast of text and speech, and a computer storage medium, so as to improve user experience.

In order to achieve the above object, the present invention provides the following technical solutions:

A calibration method for synchronous broadcast of text and speech, comprising:

The text display unit receives the speech recognition string sent by the voice broadcast unit, determines the characters displayed in each row, and automatically scrolls the characters displayed in each row at a preset scrolling speed;

The character display unit obtains the line feed information corresponding to each line according to the characters displayed in each line, and sends the line feed information to the voice broadcasting unit;

The text display unit receives the broadcast line number sent by the voice broadcast unit, and the broadcast line number is the number of lines sent when the actual broadcast progress of the voice broadcast unit reaches the line feed information corresponding to each line;

The text display unit determines the number of display lines currently scrolled to, and compares the number of displayed lines with the number of broadcast lines to determine an error value, and when the error value exceeds a preset threshold, adjust the characters displayed in each line scroll speed.

Preferably, the text display unit receives the voice recognition string sent by the voice broadcast unit, and determines the characters displayed in each line, including:

The text display unit receives the speech recognition character string sent by the voice broadcast unit, and determines the characters displayed in each line according to the width and height of the text display unit.

Preferably, the text display unit determines the number of displayed rows currently scrolled to, including:

The text display unit determines the number of display lines to which the current display is scrolled according to the initial value of the number of lines, the height of the text in pixels and the preset scrolling speed.

Preferably, the comparing the number of displayed lines with the number of broadcast lines to determine an error value includes:

A difference is made between the number of displayed lines and the number of broadcast lines, and the difference is used as an error value.

Preferably, when the error value exceeds a preset threshold, adjusting the scrolling speed of the characters displayed in each row includes:

When the difference between the number of displayed lines and the number of broadcast lines is greater than zero, reducing the scrolling speed of the characters;

And, when the difference between the number of displayed lines and the number of broadcast lines is less than zero, the scrolling speed of the characters is increased.

A calibration method for synchronous broadcast of text and speech, comprising:

The voice broadcast unit sends the acquired voice recognition string to the text display unit;

The voice broadcast unit receives the line feed information sent by the text display unit, and when the actual broadcast progress of the voice broadcast unit reaches the line feed information corresponding to each line, sends the broadcast line number to the text display unit.

Preferably, after the voice broadcast unit sends the acquired voice recognition character string to the text display unit, and before the voice broadcast unit receives the line feed information sent by the text display unit, the method further includes:

The voice broadcast unit starts to broadcast the acquired voice recognition character string after a preset time.

A calibration device for simultaneous broadcast of text and voice, comprising:

The character scrolling module is used to receive the speech recognition string sent by the speech broadcasting unit, determine the characters displayed in each row, and automatically scroll the characters displayed in each row at a preset scrolling speed;

a newline information determination module, used for obtaining the newline information corresponding to each line according to the characters displayed in each line, and sending the newline information to the voice broadcasting unit;

an information receiving module, configured to receive the number of broadcast lines sent by the voice broadcast unit, where the number of broadcast lines is the number of lines sent when the actual broadcast progress of the voice broadcast unit reaches the line feed information corresponding to each line;

The synchronous calibration module is used to determine the number of display lines currently scrolled to, and compare the number of display lines with the number of broadcast lines to determine the error value. When the error value exceeds the preset threshold, adjust the displayed line number of each line. The scrolling speed of the characters.

A calibration device for simultaneous broadcast of text and voice, comprising:

The string sending module is used to send the acquired speech recognition string to the text display unit;

The line feed feedback information determination module is used to receive the line feed information sent by the text display unit, and when the actual broadcast progress of the voice broadcast unit reaches the line feed information corresponding to each line, send the broadcast line number to the text display unit.

A computer storage medium storing a program corresponding to the above calibration method.

Compared with the prior art, the scheme of the present invention has the following beneficial effects:

The method for calibrating text-voice synchronous broadcast provided by the embodiment of the present invention includes: the text display unit receives the speech recognition string sent by the voice broadcast unit, determines the characters displayed in each line, and automatically displays the characters displayed in each line at a preset scrolling speed. scrolling; the text display unit obtains the line break information corresponding to each line according to the characters displayed in each line, and sends the line break information to the voice broadcast unit; the text display unit receives the broadcast line number sent by the voice broadcast unit, and the broadcast line number is the current voice The number of lines sent when the actual broadcast progress of the broadcast unit reaches the linefeed information corresponding to each line; the text display unit determines the number of display lines currently scrolled to, and compares the number of displayed lines with the number of broadcast lines to determine the error value. When the error value exceeds the preset threshold, adjust the scrolling speed of the characters displayed on each line. This calibration method compares the number of displayed lines with the number of broadcast lines to determine the error value, and when the error value exceeds the preset threshold, the scrolling speed of the characters displayed in each line is adjusted, so the accumulated drift error caused by long-time playback can be calibrated delay, thereby increasing the user experience.

Additional aspects and advantages of the present invention will be set forth in part in the following description, which will be apparent from the following description, or may be learned by practice of the present invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a schematic diagram of a complete text-voice synchronous broadcast process according to an embodiment of the present invention;

FIG. 2 is a flowchart of a calibration method for text-voice synchronous broadcast provided by an embodiment of the present invention;

3 is a flowchart of another calibration method for text-voice synchronous broadcast provided by an embodiment of the present invention;

4 is a structural block diagram of a calibration device for text-voice synchronous broadcast provided by an embodiment of the present invention;

FIG. 5 is a structural block diagram of another calibration apparatus for synchronous broadcast of text and speech provided by an embodiment of the present invention.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but not to be construed as a limitation of the present invention.

It will be understood by those skilled in the art that the singular forms "a", "an", "the" and "the" as used herein can include the plural forms as well, unless expressly stated otherwise. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of stated features, integers, steps, operations, elements and/or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components and/or groups thereof. It will be understood that when we refer to an element as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Furthermore, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combination of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms, such as those defined in a general dictionary, should be understood to have meanings consistent with their meanings in the context of the prior art and, unless specifically defined as herein, should not be interpreted in idealistic or overly formal meaning to explain.

First of all, the source of errors in the process of text-voice synchronous broadcasting is introduced.

In the Android (Android) system, there are text display APK (Android Package, Android installation package) and voice broadcast APK. A complete text and voice synchronous broadcast process is shown in Figure 1.

As shown in Figure 1, after the voice broadcast APK obtains the voice recognition string (String) returned from the cloud, it is sent to the text display APK at time T0, the text display APK receives the String at T1 time, and the text display APK is based on the current device. The size of the width and height, and according to the display parameters, obtain the total characters of the text, the number of displayed lines, and the percentage of characters in each line of the total characters, and send a newline array at the time of T3, and the newline array includes the characters of each line. percentage.

As shown in Figure 1, at the moment of T4, the voice broadcast APK receives the newline array and compares it with the broadcast progress provided by the voice broadcast APK's own broadcast function. When the broadcast progress reaches the value in the text display APK newline array, at T5 Send the broadcast line number to the text display APK at any time, and the text display APK receives the broadcast line number at T6 time, and completes the line wrap display at T7 time.

As can be seen from the above process, there are many delays in the middle from the voice broadcast APK sending String, to the text display APK display, from the voice broadcast APK sending the broadcast line number to the text display APK actually completing the line wrapping display, which greatly affects the text. Accuracy and user experience of simultaneous voice broadcast.

The inventor of this application found that there are two main factors that affect the accuracy of the text-voice synchronous broadcast process: first, the broadcast delay before the voice broadcast APK and the text display APK leave the factory (for example: the voice broadcast APK and the text display APK) APK function call delay, text display APK function delay and voice broadcast APK function delay); second, in the actual application process, the accumulated delay of drift error caused by long-term playback.

The specific embodiment of the present invention solves the method for the broadcast delay existing before the delivery of the voice broadcast APK and the text display APK as follows:

Since the voice broadcast APK and the text display APK are in the same system, the voice broadcast APK and the text display APK share a clock. There are the following main delays in this process:

Propagation instruction delay: T _ds =T ₁ -T ₀ =T ₄ -T ₃ =T ₆ -T ₅

Display command delay: T _DspAc =T ₃ -T ₁

Line feed command delay: T _LineAc =T ₇ -T ₆

The delays of the above-mentioned instructions, although the delays will be slightly different, the overall difference is not large and can be approximately equal.

Here's how to measure the above delay:

The specific embodiment of the present invention can adopt the average measurement method. Before the software versions of the voice broadcast APK and the text display APK are shipped from the factory, multiple measurements are performed in advance, and the multiple measurement values are averaged. That is to say, in the measurement process, a timestamp (obtained by the system time function) is added to the sending command, so that the absolute sending time of each command can be obtained, and then each delay can be obtained.

After calibrating the broadcast delay existing before leaving the factory, the embodiment of the present invention mainly introduces how to calibrate the accumulated delay of drift error caused by long-time playing, so as to improve user experience.

The technical solutions of the embodiments of the present invention are described below with reference to the accompanying drawings.

As shown in FIG. 2, a specific embodiment of the present invention provides a calibration method for synchronous broadcast of text and speech, including:

S201, the text display unit receives the speech recognition string sent by the voice broadcast unit, determines the characters displayed in each row, and automatically scrolls the characters displayed in each row with a preset scrolling speed;

S202, the text display unit obtains the line break information corresponding to each line according to the characters displayed in each line, and sends the line break information to the voice broadcasting unit;

S203, the text display unit receives the broadcast line number sent by the voice broadcast unit, and the broadcast line number is the number of lines sent when the actual broadcast progress of the voice broadcast unit reaches the linefeed information corresponding to each line;

S204: The text display unit determines the number of displayed lines currently scrolled to, and compares the number of displayed lines with the number of broadcast lines to determine an error value, and when the error value exceeds a preset threshold, adjust the scrolling speed of the characters displayed on each line.

Because the method for calibrating text and voice synchronous broadcast in the specific embodiment of the present invention includes: the text display unit receives the speech recognition string sent by the voice broadcast unit, determines the characters displayed in each line, and automatically displays the characters displayed in each line at a preset scrolling speed. scrolling; the text display unit obtains the line break information corresponding to each line according to the characters displayed in each line, and sends the line break information to the voice broadcast unit; the text display unit receives the broadcast line number sent by the voice broadcast unit, and the broadcast line number is the current voice The number of lines sent when the actual broadcast progress of the broadcast unit reaches the linefeed information corresponding to each line; the text display unit determines the number of display lines currently scrolled to, and compares the number of displayed lines with the number of broadcast lines to determine the error value. When the error value exceeds the preset threshold, adjust the scrolling speed of the characters displayed on each line. This calibration method compares the number of displayed lines with the number of broadcast lines to determine the error value, and when the error value exceeds the preset threshold, the scrolling speed of the characters displayed in each line is adjusted, so the accumulated drift error caused by long-time playback can be calibrated delay, thereby increasing the user experience.

Preferably, in the above step S201, the text display unit receives the speech recognition string sent by the voice broadcast unit, and determines the characters displayed in each line, including: the text display unit receives the speech recognition string sent by the voice broadcast unit, and according to the text display unit The width and height determine the characters displayed on each line.

Specifically, it is assumed that the speech recognition string received by the text display unit includes 100 characters, and the text display unit calculates the characters that can be displayed in each line in real time according to the width and height of the text display unit. It is assumed that each line can display up to 30 characters ( Different text display units have different situations), in this way, 100 characters can display four lines in total.

Regarding the line feed information in the above step S202, specifically, the line feed information in the specific embodiment of the present invention takes the line feed array as an example, and the embodiment in the previous paragraph is continued. The text display unit can obtain the line feed array according to the characters displayed in each line. LinePrecent[3]={30%, 60%, 90%}, in the specific embodiment of the present invention, each value in the linefeed array LinePrecent[3] is represented by a percentage, and 30% in the linefeed array LinePrecent[3] represents the first One line can display 30 characters, 60% means that the first and second lines can display a total of 60 characters, and 90% means that the first, second and third lines can display a total of 90 characters. Linefeed, so the linefeed array LinePrecent[3] only includes the percentage value when the first three lines need to be wrapped.

Preferably, in the above step S204, the text display unit determines the current scrolled display line number, including: the text display unit determines the current scrolled display line number according to the initial value of the line number, the height pixel of the text and the preset scroll speed.

Specifically, in the specific embodiment of the present invention, the text display unit includes a variable LineNum, the variable LineNum records the number of displayed lines currently scrolled to, and the initial value is 1. When the second line is scrolled, the value of LineNum is increased by 1, and the scroll The number of lines reached can be determined according to the height pixels of the text and the preset scrolling speed; for example, the height of the text is 20 pixels, and the preset scrolling speed is 4px/time, so after five instructions, one line is scrolled, and the scrolling speed is The unit is pixel/time.

Preferably, in the above step S204, the number of displayed lines and the number of broadcast lines are compared to determine the error value, including: taking the difference between the number of displayed lines and the number of broadcast lines, and using the difference as the error value.

Specifically, in the present invention, if the difference between the number of displayed lines and the number of broadcast lines is greater than zero, it means that the actual line wrapping speed of the text display unit is greater than the broadcast speed of the voice broadcast unit; If the difference is less than zero, it means that the actual line wrapping speed of the text display unit is lower than the broadcasting speed of the voice broadcasting unit. With the extension of the broadcast time, the difference between the actual line wrapping speed of the text display unit and the broadcast speed of the voice broadcast unit will become larger and larger, which will cause the text display and voice playback to be out of sync.

In the specific embodiment of the present invention, it is assumed that the broadcasting speed of the voice broadcasting unit is a fixed value. In order to enable the text display and voice playback to be performed synchronously, the text display unit needs to adjust the scrolling speed of the characters displayed in each line.

Preferably, in the above-mentioned step S204, when the error value exceeds the preset threshold, adjusting the scrolling speed of the characters displayed in each line, including: when the difference between the number of displayed lines and the number of broadcast lines is greater than zero, reducing the number of displayed characters in each line. The scrolling speed of the characters; and, when the difference between the number of displayed lines and the number of broadcast lines is less than zero, increasing the scrolling speed of the characters displayed on each line. In this way, even if the initial scrolling speed is set too fast or too slow, after a period of adjustment, the scrolling speed of the characters displayed in each line will eventually converge and stabilize to a small range. Synchronized with voice playback.

Based on the same inventive concept, a specific embodiment of the present invention also provides a method for calibrating text and voice synchronous broadcast, as shown in FIG. 3 , the method includes:

S301, the voice broadcast unit sends the acquired voice recognition character string to the text display unit;

S302: The voice broadcasting unit receives the line feed information sent by the text display unit, and when the actual broadcasting progress of the voice broadcasting unit reaches the line feed information corresponding to each line, sends the broadcast line number to the text display unit.

Preferably, in the specific embodiment of the present invention, after the voice broadcast unit sends the acquired voice recognition string to the text display unit, and before the voice broadcast unit receives the line feed information sent by the text display unit, the method further includes: the voice broadcast unit at a preset time. After that, start broadcasting the acquired speech recognition string.

Specifically, as shown in FIG. 1 , the preset time in the specific embodiment of the present invention is T2-T0, so that the broadcast starts after the preset time, which can well compensate the instruction delay error.

The following describes in detail a method for calibrating text-voice synchronous broadcast provided by a specific embodiment of the present invention in conjunction with a specific embodiment.

The basic unit of text and voice synchronous broadcast in the specific embodiment of the present invention is line synchronization.

It is assumed that the voice broadcast speed is one character per second, and the voice broadcast speed is a fixed value.

The specific embodiment of the present invention takes the random voice question and answer as an example, and the questioner asks: "Please introduce XXX company?". The voice announcement unit in the specific embodiment of the present invention obtains the speech recognition string corresponding to the question, assuming that the speech recognition string contains 100 characters, string=100 (including punctuation marks), and the speech announcement unit at T0 time value will string string It is sent to the text display unit, and the voice broadcast unit starts to broadcast at the time T2-T0, as shown in Figure 1.

As shown in Figure 1, after the text display unit receives the string, it starts to automatically scroll the subtitles at a suitable random speed, and the unit of the random speed is pixels/time; Height, calculate the characters that can be displayed in each line in real time, assuming that each line can display up to 30 characters (different text display units are different), in this way, 100 characters can be displayed in four lines in total.

As shown in FIG. 1, the line feed information in the specific embodiment of the present invention takes the line feed array as an example, and the text display unit obtains the line feed array LinePrecent[3]={30%, 60%, 90%} according to the characters displayed in each line , 30% of the newline array represents the linefeed signal corresponding to the first line, 60% represents the linefeed information corresponding to the second line, 90% represents the linefeed information corresponding to the third line, the last line does not wrap, and the text display unit is at time T3 Send the linefeed array LinePrecent[3] to the voice broadcast unit.

Moreover, in the specific embodiment of the present invention, the text display unit includes a variable LineNum, the variable LineNum records the number of displayed lines currently scrolled to, and the initial value is 1. When the second line is scrolled, the value of LineNum is increased by 1, and the scroll to The number of displayed lines can be determined according to the initial value of the number of lines, the height of the text in pixels and the preset scrolling speed; for example: the height of the text in pixels is 20 pixels, and the preset scrolling speed is 4px/time, so after five instructions a line.

As shown in Figure 1, at the time value of T4, the voice broadcast unit receives the linefeed array LinePrecent[3] sent by the text display unit. During the broadcast process, the voice broadcast unit will obtain its own broadcast progress in real time. When the voice broadcast unit When the actual broadcast progress reaches the linefeed information corresponding to each line (ie, reaches each value in the linefeed array LinePrecent[3]), the broadcast line number is sent to the text display unit.

For example: record the number of broadcast lines as LineCmd, the number of broadcast lines LineCmd does not actually perform line wrapping, the current broadcast progress of the voice broadcast unit is 25%, when the broadcast reaches 30%, the broadcast line number is sent (LineCmd=2, indicating that the voice broadcast unit is at this time has been played to the second line); when the broadcast reaches 60%, the number of broadcast lines is sent again (LineCmd=3, indicating that the voice broadcast unit has played the third line at this time); when the broadcast reaches 90%, the number of broadcast lines is sent again ( LineCmd=4, indicating that the voice broadcast unit has played to the fourth line at this time).

As shown in Figure 1, the text display unit receives the broadcast line number at time T6, and completes the actual line feed operation at time T7. Specifically, in the specific embodiment of the present invention, after each time the text display unit receives the number of broadcast lines sent by the voice broadcast unit, it compares the received number of broadcast lines (the number of newlines obtained by the voice broadcast unit theoretically) with the text display unit. Compare the actual number of displayed lines to determine the error value. For example, the difference between the number of broadcast lines and the number of displayed lines is determined as the error value. When the error value exceeds the preset threshold, the display of each line is adjusted. The scrolling speed of the characters.

During specific implementation, when the difference between the number of displayed lines and the number of broadcast lines is greater than zero, the scrolling speed of the characters displayed in each line is reduced; when the difference between the number of displayed lines and the number of broadcast lines is less than zero, the characters displayed in each line are increased scroll speed.

In this way, after a certain period of time, the text display and the voice broadcast are synchronized, and the scrolling speed of the characters displayed in each line of the text display unit is stabilized to a reasonable range; the specific embodiment of the present invention adjusts the scrolling speed of the characters displayed in each line by adjusting the scrolling speed of the characters displayed in each line. , to solve the cumulative error of the broadcast caused by the long-time broadcast of the voice broadcast, so as to achieve the effect of real-time synchronization of text and voice.

Based on the same inventive concept, a specific embodiment of the present invention also provides a calibration device for synchronous broadcast of text and speech, as shown in FIG. 4 , including:

The character scrolling module 41 is used to receive the speech recognition character string sent by the voice broadcasting unit, determine the characters displayed in each row, and automatically scroll the characters displayed in each row with a preset scrolling speed;

The newline information determination module 42 is used to obtain the newline information corresponding to each line according to the characters displayed in each line, and send the newline information to the voice broadcasting unit;

The information receiving module 43 is used to receive the broadcast line number sent by the voice broadcast unit, and the broadcast line number is the number of lines sent when the actual broadcast progress of the voice broadcast unit reaches the linefeed information corresponding to each line;

The synchronous calibration module 44 is used to determine the number of displayed lines currently scrolled to, and compare the number of displayed lines with the number of broadcast lines to determine an error value, and when the error value exceeds a preset threshold, adjust the scrolling of the characters displayed on each line speed.

Based on the same inventive concept, a specific embodiment of the present invention also provides a calibration device for synchronous broadcast of text and speech, as shown in FIG. 5 , including:

a character string sending module 51, used for sending the acquired speech recognition character string to the text display unit;

The line feed feedback information determining module 52 is used to receive the line feed information sent by the text display unit, and when the actual broadcast progress of the voice broadcast unit reaches the line feed information corresponding to each line, send the broadcast line number to the text display unit.

Based on the same inventive concept, a specific embodiment of the present invention also provides a computer storage medium, where the computer storage medium stores a program corresponding to the above-mentioned calibration method for synchronous broadcast of text and speech.

As will be appreciated by those skilled in the art, the present invention includes apparatuses for performing one or more of the operations described in this application. These devices may be specially designed and manufactured for the required purposes, or they may include those known in general purpose computers. These devices have computer programs stored in them that are selectively activated or reconfigured. Such a computer program may be stored in a device (eg, computer) readable medium including, but not limited to, any type of medium suitable for storing electronic instructions and coupled to a bus, respectively Types of disks (including floppy disks, hard disks, CD-ROMs, CD-ROMs, and magneto-optical disks), ROM (Read-Only Memory, read-only memory), RAM (Random Access Memory, random access memory), EPROM (Erasable Programmable Read-Only Memory, Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory, Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic card or optical card. That is, a readable medium includes any medium that stores or transmits information in a form that can be read by a device (eg, a computer).

In summary, the method for calibrating text-voice synchronous broadcast provided by a specific embodiment of the present invention includes: the text display unit receives the speech recognition string sent by the voice broadcast unit, determines the characters displayed in each line, and compares the characters displayed in each line Automatically scroll at a preset scrolling speed; the text display unit obtains the line break information corresponding to each line according to the characters displayed in each line, and sends the line feed information to the voice broadcast unit; the text display unit receives the broadcast line number sent by the voice broadcast unit, The number of broadcast lines is the number of lines sent when the actual broadcast progress of the voice broadcast unit reaches the line feed information corresponding to each line; the text display unit determines the number of displayed lines currently scrolled to, and compares the number of displayed lines with the number of broadcast lines, Determine the error value, when the error value exceeds the preset threshold, adjust the scrolling speed of the characters displayed in each line. The calibration method compares the number of displayed lines with the number of broadcast lines to determine the error value, and when the error value exceeds the preset threshold, the scrolling speed of the characters displayed on each line is adjusted, so the accumulated drift error caused by long-time playback can be calibrated delay, thereby increasing the user experience.

The above are only some embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. A calibration method for synchronous broadcast of text and voice is characterized by comprising the following steps:

the character display unit receives the voice recognition character string sent by the voice broadcasting unit, determines the characters displayed in each line, and automatically scrolls the characters displayed in each line at a preset scrolling speed;

the character display unit obtains line feed information corresponding to each line according to the characters displayed by each line, and sends the line feed information to the voice broadcasting unit;

the text display unit receives the broadcasting line number sent by the voice broadcasting unit, wherein the broadcasting line number is the line number sent when the actual broadcasting progress of the voice broadcasting unit reaches the line feed information corresponding to each line;

and the character display unit determines the display line number currently scrolled to, compares the display line number with the broadcast line number, determines an error value, and adjusts the scrolling speed of the characters displayed on each line when the error value exceeds a preset threshold value.

2. The calibration method according to claim 1, wherein the text display unit receives the voice recognition character string sent by the voice broadcasting unit, and determines the characters displayed in each row, including:

the character display unit receives the voice recognition character string sent by the voice broadcasting unit, and determines characters displayed in each line according to the width and the height of the character display unit.

3. The calibration method of claim 1, wherein the determining, by the text display unit, the number of display lines currently scrolled to comprises:

and the character display unit determines the display line number scrolled to currently display according to the initial line number value, the height pixel of the character and the preset scrolling speed.

4. The calibration method of claim 1, wherein comparing the number of display lines to the number of broadcast lines to determine an error value comprises:

and taking the difference between the display line number and the broadcast line number as an error value.

5. The calibration method according to claim 4, wherein adjusting the scrolling speed of the displayed characters for each line when the error value exceeds a preset threshold comprises:

when the difference value between the display line number and the broadcast line number is larger than zero, the scrolling speed of the character is reduced;

and when the difference value between the display line number and the broadcast line number is less than zero, increasing the scrolling speed of the character.

6. A calibration method for synchronous broadcast of text and voice is characterized by comprising the following steps:

the voice broadcasting unit sends the acquired voice recognition character string to a character display unit;

the voice broadcasting unit receives the line feed information sent by the character display unit, and sends broadcasting lines to the character display unit when the actual broadcasting progress of the voice broadcasting unit reaches the line feed information corresponding to each line.

7. The calibration method according to claim 6, wherein after the voice broadcasting unit sends the acquired voice recognition character string to a text display unit, and before the voice broadcasting unit receives line feed information sent by the text display unit, the method further comprises:

and the voice broadcasting unit starts to broadcast the acquired voice recognition character string after preset time.

8. The utility model provides a calibration device that synchronous report of characters pronunciation which characterized in that includes:

the character rolling module is used for receiving the voice recognition character string sent by the voice broadcasting unit, determining the characters displayed in each line and automatically rolling the characters displayed in each line at a preset rolling speed;

the line feed information determining module is used for obtaining line feed information corresponding to each line according to the characters displayed by each line and sending the line feed information to the voice broadcasting unit;

the information receiving module is used for receiving the broadcasting line number sent by the voice broadcasting unit, wherein the broadcasting line number is the line number sent when the actual broadcasting progress of the voice broadcasting unit reaches the line feed information corresponding to each line;

and the synchronous calibration module is used for determining the number of display lines currently scrolled to, comparing the number of display lines with the number of broadcast lines, determining an error value, and adjusting the scrolling speed of the characters displayed on each line when the error value exceeds a preset threshold value.

9. The utility model provides a calibration device that synchronous report of characters pronunciation which characterized in that includes:

the character string sending module is used for sending the acquired voice recognition character string to the character display unit;

and the line feed back information determining module is used for receiving the line feed information sent by the character display unit, and sending the broadcasting line number to the character display unit when the actual broadcasting progress of the voice broadcasting unit reaches the line feed information corresponding to each line.

10. A computer storage medium storing a program corresponding to the calibration method according to any one of claims 1 to 5; and/or a program corresponding to the calibration method according to any one of claims 6 to 7 is stored.

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