DE3118704A1 - Playback synthesizer - Google Patents
Playback synthesizerInfo
- Publication number
- DE3118704A1 DE3118704A1 DE19813118704 DE3118704A DE3118704A1 DE 3118704 A1 DE3118704 A1 DE 3118704A1 DE 19813118704 DE19813118704 DE 19813118704 DE 3118704 A DE3118704 A DE 3118704A DE 3118704 A1 DE3118704 A1 DE 3118704A1
- Authority
- DE
- Germany
- Prior art keywords
- output signals
- signal
- difference
- sum
- playback
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- ZYXYTGQFPZEUFX-UHFFFAOYSA-N benzpyrimoxan Chemical compound O1C(OCCC1)C=1C(=NC=NC=1)OCC1=CC=C(C=C1)C(F)(F)F ZYXYTGQFPZEUFX-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
Abstract
Description
Playback SynthesizerPlayback synthesizer
Playback Synthesizer Die Erfindung betrifft eine Schaltungsanordnung zur Anfertigu.Playback Synthesizer The invention relates to a circuit arrangement for preparation
von Stereo-Playbacks aus den Ausgangssignalen handelsüblicher Stereo-Wiedergabegeräte.of stereo playbacks from the output signals of commercially available stereo playback devices.
Es besteht ein Bedarf an Geräten,die es ermöglichen, Stereo-Schallplatten oder -kassetten so wiederzugeben, daß die Stimme des Sängers kaum oder garnicht zu hören ist, das Xlangbild im übrigen einschließlich des Orchesters, des Chores und des Studiohalles aber möglichst unbeeinträchtigt bleibt. Mit Hilfe eines solchen Gerätes kann der Benutzer bei einem häuslichen "Auftritt" ebenso begleiteterden wie der Interpret auf der Aufnahme.There is a need for devices that allow stereo records to be made or cassettes in such a way that the singer's voice hardly or not at all can be heard, the Xlang picture, by the way, including the orchestra and the choir and the studio hall remains as undisturbed as possible. With the help of such a The user can also accompany the device during a domestic "appearance" like the artist on the recording.
Geräte, die ein Pseudo-Stereoklangbild unter Ausblendung der Stimme des Interpreten wiedergeben, sind nicht bekannt.Devices that produce a pseudo stereo sound image while fading out the voice of the artist are not known.
Der Erfindung liegt die Aufgabe zugrunde, ein solches Pseudo-Stereoklangbild bei Ausblendung der Stimme des Interpreten, aber möglichst weitgehendem Erhalten des Klangbildes im übrigen zu ermöglichen.The invention is based on the object of providing such a pseudo stereo sound image when the interpreter's voice is faded out, but preserved as much as possible to enable the rest of the sound image.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Differenz und die Summe der Ausgangssignale eines handelsüblichen Wiedergabegerätes gebildet und neue Ausgangssignale durch Addition und Subtraktion des über einen Tiefpass geführten Summensignals und des Differenzsignals hergestellt werden.According to the invention, this object is achieved in that the difference and the sum of the output signals of a commercially available playback device is formed and new output signals by adding and subtracting the over a low pass guided sum signal and the difference signal are produced.
Die Erfindung macht sich zunutze, daß bei Stereoaufnahmen ein Mittensignal (M), auf dem im wesentlichen die Stimme des Sängers sowie die Baßanteile der Aufnahme übertragen werden, in gleicher Weise auf die "linken" bzw. "rechten" Signale (L) und (R) aufgegeben werden. Die Ausgangssignale eines handelsüblichen Stereo-Wiedergabegerätes können daher als (R+M) bzw.The invention makes use of the fact that a center signal is used in stereo recordings (M), on which essentially the voice of the singer and the bass parts of the recording are transmitted in the same way to the "left" or "right" signals (L) and (R) are abandoned. The output signals of a standard stereo playback device can therefore be used as (R + M) or
(L+M) bezeichnet werden. Das Mittensignal (M) erweckt so bei der Wiedergabe den Eindruck, als werde die Stimme des Sängers zwischen den beiden Tonquellen erzeugt.(L + M). The center signal (M) wakes up during playback the impression that the singer's voice is generated between the two sound sources.
Durch Bildung der Differenz (R+M) - (IJ+M) entsteht ein Signal (R-L). Parallel dazu wird ein Signal (R+M) + (L+M) = (R+L+2M) gebildet und über einen Tiefpass geführt. Das so erzeugte Signal (S) trägt also nur den Baßanteil des Signals (R+L+2M), beinhaltet also im wesentlichen den über das Mittensignal übertragenen Baßanteil der Aufnahme.Forming the difference (R + M) - (IJ + M) creates a signal (R-L). In parallel, a signal (R + M) + (L + M) = (R + L + 2M) is generated and via a low pass guided. The signal (S) generated in this way only carries the bass component of the signal (R + L + 2M), thus essentially contains the bass component transmitted via the center signal the recording.
Dieses Signal (S) wird mit dem Differenzsignal (R-L) so zusammengeführt, daß einmal die Summe aus dem Signal (R-L) = (S) + (R-L) und einmal die Differenz (S) - (R-L) gebildet wird.This signal (S) is combined with the difference signal (R-L) so that that once the sum of the signal (R-L) = (S) + (R-L) and once the difference (S) - (R-L) is formed.
Das Signal (S) + (R+L) bildet das eine der beiden neuen Ausgangssignale, das Signal (S) - (R-L) das andere.The signal (S) + (R + L) forms one of the two new output signals, the signal (S) - (R-L) the other.
Auf diese Weise wird ein Pseudo-Stereo-Klangbild erzeugt, das zum einen auf der Invertierung des Signales, wesentlich aber darauf beruht, daß der Baßanteil des Mittensignales, also (S)t auf beiden Kanälen in gleicher Weise wiedergegeben wird, so daa d- Eindruck entsteht, als werde dieses Signal (S) zwischen den beiden Tonquellen erzeugt.In this way, a pseudo-stereo sound image is generated that is used for the one is based on the inversion of the signal, but essentially on the fact that the The bass component of the center signal, i.e. (S) t, is reproduced in the same way on both channels becomes, so that the impression arises as if this signal (S) is between the two Sound sources generated.
Auf der beiliegenden Zeichnung ist ein Prinzipschaltbild mit den vier Addier-bzw. Subtrahiereinheiten dargestellt.On the accompanying drawing is a basic circuit diagram with the four Adding or Subtraction units shown.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813118704 DE3118704A1 (en) | 1981-05-12 | 1981-05-12 | Playback synthesizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813118704 DE3118704A1 (en) | 1981-05-12 | 1981-05-12 | Playback synthesizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3118704A1 true DE3118704A1 (en) | 1982-12-02 |
Family
ID=6132040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19813118704 Withdrawn DE3118704A1 (en) | 1981-05-12 | 1981-05-12 | Playback synthesizer |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3118704A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994005135A1 (en) * | 1992-08-22 | 1994-03-03 | Mark Preece | Music isolator |
| US5692050A (en) * | 1995-06-15 | 1997-11-25 | Binaura Corporation | Method and apparatus for spatially enhancing stereo and monophonic signals |
-
1981
- 1981-05-12 DE DE19813118704 patent/DE3118704A1/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994005135A1 (en) * | 1992-08-22 | 1994-03-03 | Mark Preece | Music isolator |
| US5692050A (en) * | 1995-06-15 | 1997-11-25 | Binaura Corporation | Method and apparatus for spatially enhancing stereo and monophonic signals |
| US5883962A (en) * | 1995-06-15 | 1999-03-16 | Binaura Corporation | Method and apparatus for spatially enhancing stereo and monophonic signals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |