JP2007171490A - Audiovisual converting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an audiovisual converting device that enables a listener to enjoy not only an audio signal with the ears but video by outputting image data of a previously set animation to an audiovisual display device according to a detection result of the level of the audio signal. <P>SOLUTION: The audiovisual converting device 1 includes a detection section 17 which detects the level of the audio signal of an audio player 2, a storage section 21 which stores animations relating to a plurality of contents, a selection section 5 which selects the contents, and a control section 20 which reads out an animation of contents selected by the selection unit 5 and outputs it to an audiovisual display device. The control section 20 judges the level of the audio signal based upon the detection result of the detection section 17, selects one animation out of the plurality of animations corresponding to the level at random, and displays the selected animation on the audiovisual display device 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an audio / video conversion device, and more particularly to an audio / video conversion device that displays an animation on an audio / video display device based on an audio signal of an audio player.

2. Description of the Related Art Conventionally, an apparatus that is connected to an audio player and converts an audio signal output from the audio player into visible information and displays the same has been proposed (for example, Patent Document 1). This device converts the fluctuation of an audio signal into light emission / flashing of a light emitting diode as a display unit, and accommodates the light emitting diode in a character member formed of a transparent member such as transparent plastic.
JP-A-11-327581

  The problem to be solved by the present invention is that the above-mentioned device detects the frequency of a specific range or a plurality of ranges in the audio signal and the strength of the audio signal by the detection unit, and displays based on the detected variation of the audio signal. The light emitting diode, which is the light emitting part, is made to blink, and the light emitting diode blinks in synchronism with the fluctuation of the audio signal, and there is a risk of getting bored just by irradiating the character member from the inside.

  The present invention solves the above-mentioned problems and outputs image data of a preset animation based on the detection result of the level of the audio signal to the audio / video display device so that the audio signal can be enjoyed not only by the ear but also by the video. It is an object of the present invention to provide an audio / video conversion device capable of performing the above.

In order to solve the above-described problems, an audio / video conversion apparatus according to the present invention has the following requirements.
(A) The audio / video conversion device is connected between an audio player and an audio / video display device, relays an audio signal of the audio player to the audio / video display device, and outputs a video signal related to the audio signal. (B) The audio / video conversion apparatus selects a detection unit that detects a level of an audio signal, a storage unit that stores a plurality of animation videos related to each content, and the content. A selection unit and a control unit that reads out an animation video of the content selected by the selection unit and outputs the animation video to the audio video display device. (C) The animation video corresponds to the level of the audio signal for each content. (D) The audio / video conversion device The level of the audio signal is determined based on the detection result of the part, and one animation corresponding to the level is randomly selected from the plurality of animations corresponding to the content selected by the selection part, and the selected animation image Reading data from the storage unit and outputting the read video data to the audio / video display device The audio / video conversion device may have the following requirements.
(A) The audio / video conversion device determines the level of the audio signal at the end of the animation, and if the same level continues, the same animation is continuously read and the read video data is output to the audio / video display device. (B) When the audio / video conversion apparatus determines that the same level has continued for a predetermined period or longer, the audio / video conversion apparatus selects and outputs another animation from the selected content so that the same animation is not repeated. thing

  According to the first aspect of the present invention, since the preset animation is displayed on the audio / video display device in accordance with the level of the audio signal, the movement of the content can be changed finely following the change in the level. In addition, it is possible to provide an audio / video conversion device that can display a BGM-like image that soothes the feelings of the viewer on the audio / video display device and can reduce the cost of the device.

  According to the invention of claim 2, when the same level continues, the same animation is continued, but when the same level continues repeatedly, another animation of the same level is output when the repetition is repeated a predetermined number of times. Because I did so, I never got tired of seeing the same animation forever.

  FIG. 1 shows an audio / video conversion apparatus 1 according to the present invention. The audio / video conversion apparatus (hereinafter referred to as a conversion apparatus) 1 is provided between a portable audio player 2 and an audio / video display apparatus 3 such as a television. An animation of content selected based on the audio signal output from the audio player 2 is displayed on the audio video display device 3 so that music can be enjoyed not only by the ear but also by the eye.

  The conversion device 1 has a space 4 on which an audio player 2 is placed on the top surface, and three push buttons 5a, 5b, and 5c that are selection units 5 arranged in parallel with the placement space 4, and an audio player on the back surface. An input cable 7 having a stereo pin plug 6 connected to 2, an output cable 12 having an AV plug 11 to be inserted into an AV jack 10 for audio and image input of an audio / video display device (hereinafter referred to as TV) 3, and a slide switch 13 is provided on the back side, and the battery can be accommodated by removing the battery lid in a battery box (not shown).

  The push button is composed of a menu button 5a, a set button 5b, and a select button 5c. After selecting a content with the select button 5c, when the menu button 5a is pressed, an option mode for specifying the color of the content is selected. Since a screen for selecting the shuffle mode that changes to, and the all-shuffle mode in which the content itself changes at random is displayed, the mode is executed when the mode is selected with the select button 5c and the set button 5b is pressed. ing.

  In the present invention, five contents are set: “live” performed by musicians, “caterpillar” where the caterpillar moves, “aquarium” where the fish swims, “pattern” where the pattern changes, and “dance” where the person dances ing.

  The conversion device 1 detects the level of the audio signal input from the audio player 2, determines the detected level, and outputs the image data of the animation stored in the storage unit to the television 3. Any content is selected from a plurality of contents by pressing the select button 5c, and the selected contents are displayed in an animation corresponding to the level of the audio signal. An animation selected at random from the animations set according to the level of the detected audio signal is converted into a video signal and output to the television 3, and the audio signal One animation ends without synchronizing to minor level fluctuations At this point, the level is determined, and an animation corresponding to the level is displayed on the television 3.

  FIG. 2 is a block diagram for explaining the electrical configuration of the converter 1. The slide switch 13 is composed of interlocking switches of switches SW1, SW2 and SW3. When the slide switch 13 is slid and the switch SW1 is turned on, The voltage supplied from the battery 15 is converted into a predetermined voltage by the constant voltage circuit 16 and supplied to each circuit, while the audio signal input from the stereo pin plug 6 is branched at the subsequent stage of the switches SW2 and SW3. The other audio signal is output to the output audio terminals 11a and 11b, and the other is input to the level detector 17. The audio signal input from the audio player 2 is sent to the audio terminals 11a and 11b via the switches SW2 and SW3. And output as music from the TV 3 speakers, Level of the audio signal is adapted to be detected by the detection unit 17.

  In the present invention, the level of the audio signal is determined by the frequency, the silence level is from 0 KHz to less than 1.5 KHz, the low sound level is from 1.5 KHz to less than 1.98 KHz, and the middle sound is from 1.98 KHz to less than 2.45 KHz. A level of 2.45 KHz or higher is set as a loud sound level, and an audio signal level is set in four stages in a frequency band.

  The detection result of the level detection unit 17 is input to the CPU 20, and the CPU 20 determines an animation based on the detection result. The video data of the determined animation is read from the ROM 21 which is a storage unit, and converted into a video signal by the CPU 20. The video is output to the video terminal 11c and the animation is displayed on the television 3.

  In the present invention, the level detection unit 17 detects the frequency of the audio signal every predetermined time (in the present invention, set to 100 ms), and the CPU 20 detects the frequency detected during animation playback when one animation ends. The average value is calculated, and the level is judged from the calculated average value of the frequencies.

  In the video data stored in the storage unit 21, an animation table is set for each content, and the animation set in the animation table is composed of a plurality of frame images.

  For example, if the content is a swimming fish, as shown in the animation table diagram of FIG. 3, it corresponds to the level of the audio signal (A-1 to A-6 corresponding to the loud sound, corresponding to the medium sound). B-1 to B-6, C-1 to C-6 corresponding to a small sound, and 20 animations O-1 and O-2 corresponding to silence are set. For example, FIG. 4A shows an animation A-1 that rises after a fish swims downward, and FIG. 4B shows an animation A in which the fish moves to the left and the school of fish moves in an arc. FIG. 4 (c) shows an animation C-2 that rotates once toward the back side, and FIG. 4 (d) shows an animation in which the fish disappears to the left and two sets of fish move upward. FIG. 4 (e) shows an animation O-1 in which a fish moves slowly, and FIG. 4 (f) shows an animation O-2 in which a fish moves slowly and a group of fish moves upward. FIG. 4 (g) shows an animation C-6 in which the fish moves slowly and the whale moves upward.

  Each animation is composed of a plurality of frame images. For example, in the case of animation C-2, as shown in FIGS. 5A to 5L, after the fish swims from the center of the screen to the left side, it turns back while swimming toward the back side of the screen, and from the left to the right of the screen. It is composed of a plurality of image frames that are turned toward the front side of the screen and then turned back after swimming.

  The animation is selected at random according to the change in the level of the audio signal, but the animation after the change is set to be selected at random as shown in the change table diagram of FIG. 6 according to the level before the change. Yes.

  When the slide switch 13 is slid to turn on the switch SW1, the audio signal passes through the SW2 and SW3 and the audio terminal 11a, even if the battery is exhausted or the battery is not set. 11b, it is possible to listen only to music even if no animation is displayed on the television 3.

  The CPU 20 is connected to the switches SW4, SW5, and SW6 corresponding to the menu button 5a, the set button 5b, and the select button 5c. When each switch is turned on, the CPU 20 can determine which button is pressed. It has become.

  Next, a usage mode of the above-described conversion device 1 will be described based on the flowchart of FIG.

  First, as shown in FIG. 7, the stereo pin plug 6 is connected to the audio player 2, placed on the mounting portion 1 of the conversion device 1, the AV plug 11 is inserted into the AV jack 10, and then the slide switch 13 is operated. When the power is turned on, the animation of the content (for example, LIVE performed by the musician) is displayed on the TV 3 as an initial screen regardless of the presence or absence of an audio signal (step ST1). When the menu button is pressed, the process proceeds to step ST4 and the menu screen is displayed. Select an arbitrary mode from the option mode, shuffle mode, or all shuffle mode and press the set button 5b to display the equalizer screen. The

  However, if you want to display animation with other content, press the select button 5c on the initial screen (step ST2), and the process proceeds to content selection in step ST3. When the set button 5b is pressed and operated, the process proceeds to step ST4 and a menu screen is displayed. Select any mode from the option mode, shuffle mode and all-shuffle mode, and press the set button 5b to select the selected content. The equalizer screen is displayed.

  This equalizer screen displays an animation corresponding to the level of the audio signal. When the audio player 2 is activated, the audio signal is input, so that music is output from the speaker of the television 3, and the detection unit is detected in step ST5. The level is detected by 17, and an animation corresponding to the level is randomly selected and displayed on the television (step ST6).

  When the animation ends (step ST7), the process proceeds to step ST8, where the level of the audio signal is determined. If the level is different from the previous level, the process returns to step ST6, and the animation corresponding to the level is displayed.

  At this time, as shown in the change table diagram of FIG. 6, the animation corresponding to the new level is set to change depending on what the old level is.

  If the level is the same as before, the process proceeds to step ST9, where it is determined whether or not the same level continues for a predetermined number of times (in the present invention, set to 5 times), and if less than 5 times, the process proceeds to step ST10. When the same animation is repeated and the animation ends (step ST11), the process returns to step ST8 to determine the level of the audio signal.

  If the level has changed, the process returns to step ST6 to select and display an animation corresponding to the level. If the level has not changed, the process proceeds to step ST9 to determine whether or not the same level has been repeated a predetermined number of times. When it is determined that the predetermined number of times has been continued, the process proceeds to step ST12 to display another animation at the same level. When the animation is completed (step ST13), the process proceeds to step ST14 to determine the level of the audio signal. If it has changed, the process returns to step ST6, and an animation corresponding to the level is selected and displayed.

  If the level has not changed, the process returns to step ST12, and it is programmed to display another animation at the same level even if the level has not changed.

  When the playback of the audio player 2 is finished, the audio signal will continue to have a silence level. Therefore, the steps ST12 to ST14 are repeated, the animation of the silence level is displayed, and the audio player 2 is started again. I will wait.

  As described above, according to the conversion device 1 of the present invention, since a plurality of contents and a plurality of animations related to the contents are set in advance corresponding to the level of the audio signal, the audio signal input from the audio player Since the level is determined and the animation corresponding to that level is displayed on the TV, there is no need to follow the changes in the audio signal sequentially, so the animation flows smoothly and there is no need to create sophisticated images. An inexpensive conversion device can be provided.

Explanatory drawing of the structure for using the audio-video converter which concerns on this invention The block diagram explaining the electric constitution of the said audio-video converter Animation table when the content is fish (A)-(g) is an animation figure explaining an example of animation (A)-(l) is a frame image figure explaining an example of the said animation Animation change table selected according to level change Explanatory drawing of the state of use of the audio / video converter The flowchart figure explaining the usage condition of the said audio-video converter

Explanation of symbols

1 Audio / Video Conversion Device 2 Audio Player 3 Audio / Video Display Device (TV)
5 Selection Unit 17 Detection Unit 20 Control Unit 21 Storage Unit

Claims (2)

An audio-video conversion device comprising the following requirements:
(A) The audio / video conversion device is connected between an audio player and an audio / video display device, relays an audio signal of the audio player to the audio / video display device, and outputs a video signal related to the audio signal. (B) The audio / video conversion apparatus selects a detection unit that detects a level of an audio signal, a storage unit that stores a plurality of animation videos related to each content, and the content. A selection unit and a control unit that reads out an animation video of the content selected by the selection unit and outputs the animation video to the audio video display device. (C) The animation video corresponds to the level of the audio signal for each content. (D) The audio / video conversion device The level of the audio signal is determined based on the detection result of the part, and one animation corresponding to the level is randomly selected from the plurality of animations corresponding to the content selected by the selection part, and the selected animation image Reading data from the storage unit and outputting the read video data to the audio / video display device 2. The audio / video conversion apparatus according to claim 1, comprising the following requirements.
(A) The audio / video conversion device determines the level of the audio signal at the end of the animation, and if the same level continues, the same animation is continuously read and the read video data is output to the audio / video display device. (B) When the audio / video conversion apparatus determines that the same level has continued for a predetermined period or longer, the audio / video conversion apparatus selects and outputs another animation from the selected content so that the same animation is not repeated. thing

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