TR201820422T4 - Multi-channel audio coding with the help of complex estimation and a conversion length indicator. - Google Patents
Multi-channel audio coding with the help of complex estimation and a conversion length indicator. Download PDFInfo
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- TR201820422T4 TR201820422T4 TR2018/20422T TR201820422T TR201820422T4 TR 201820422 T4 TR201820422 T4 TR 201820422T4 TR 2018/20422 T TR2018/20422 T TR 2018/20422T TR 201820422 T TR201820422 T TR 201820422T TR 201820422 T4 TR201820422 T4 TR 201820422T4
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- signal
- combination
- prediction
- prediction information
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- 238000006243 chemical reaction Methods 0.000 title 1
- 238000009795 derivation Methods 0.000 abstract 1
- 238000005457 optimization Methods 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
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- Compression, Expansion, Code Conversion, And Decoders (AREA)
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Abstract
Mevcut buluş, bir orta sinyal olarak bir birinci kombinasyon sinyalinin (204) ve orta sinyalden, tahmin edilmiş bir yan sinyalin kullanılması suretiyle türetilebilen bir artık sinyalin (205) elde edilmesi için iki ses kanalının (201, 202) bir kombinasyonuna dayanan bir ses enkoderi ve bir ses dekoderidir. Birinci kombinasyon sinyali ve tahmin artık sinyali, bir optimizasyon hedefine (208) dayanan bir eniyileştirici (207) vasıtasıyla türetilen tahmin bilgisi (206) beraber enkode edilmekte (209) ve bir veri akışına (213) yazılmaktadır. Dekoder, dekode edilmiş bir birinci kanal sinyalinin ve dekode edilmiş bir ikinci kanal sinyalini türetmek için tahmin artık sinyalinden, birinci kombinasyon sinyalinden ve tahmin bilgisinden faydalanmaktadır. Bir enkoder örneği veya bir dekoder örneği dahilinde, birinci kombinasyon sinyaline ait spektrumun sanal kısmının tahmin edilmesi için bir reel-sanal dönüşümü uygulanabilmektedir. Tahmin artık sinyalinin türetilmesinde kullanılan tahmin sinyalinin hesaplanması için reel değerli birinci kombinasyon sinyali, karmaşık tahmin bilgisine ait reel bir kısım ile çarpılmakta ve birinci kombinasyon sinyaline ait tahmin edilen sanal kısım ise karmaşık tahmin bilgisine ait sanal bir kısım ile çarpılmaktadır.The present invention includes an audio encoder based on a combination of two audio channels 201, 202 for obtaining a residual signal 205 that can be derived from the middle signal using a first combination signal 204 and a predicted side signal from the middle signal, and is an audio decoder. The first combination signal and the prediction residual signal are co-encoded (209) and written to a data stream (213), with prediction information 206 derived by an optimizer 207 based on an optimization target 208. The decoder utilizes the prediction residual signal, the first combination signal, and the prediction information to derive a decoded first channel signal and a decoded second channel signal. Within an encoder example or a decoder example, a real-to-virtual transformation can be applied to predict the imaginary part of the spectrum of the first combination signal. In order to calculate the prediction signal used in the derivation of the prediction residual signal, the real valued first combination signal is multiplied by a real part of the complex prediction information, and the predicted imaginary part of the first combination signal is multiplied by an imaginary part of the complex prediction information.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32268810P | 2010-04-09 | 2010-04-09 | |
| US36390610P | 2010-07-13 | 2010-07-13 | |
| EP10169432A EP2375409A1 (en) | 2010-04-09 | 2010-07-13 | Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TR201820422T4 true TR201820422T4 (en) | 2019-01-21 |
Family
ID=65681314
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TR2019/00830T TR201900830T4 (en) | 2010-04-09 | 2011-03-23 | Multichannel audio coding using complex prediction and real display. |
| TR2019/01427T TR201901427T4 (en) | 2010-04-09 | 2011-03-23 | Multichannel audio coding using complex predictive and window shape information. |
| TR2019/00906T TR201900906T4 (en) | 2010-04-09 | 2011-03-23 | Multi-channel audio coding using complex prediction and explicit prediction signaling. |
| TR2018/20422T TR201820422T4 (en) | 2010-04-09 | 2011-03-23 | Multi-channel audio coding with the help of complex estimation and a conversion length indicator. |
| TR2019/00414T TR201900414T4 (en) | 2010-04-09 | 2011-03-23 | Decoding a stereo sound signal using complex prediction. |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TR2019/00830T TR201900830T4 (en) | 2010-04-09 | 2011-03-23 | Multichannel audio coding using complex prediction and real display. |
| TR2019/01427T TR201901427T4 (en) | 2010-04-09 | 2011-03-23 | Multichannel audio coding using complex predictive and window shape information. |
| TR2019/00906T TR201900906T4 (en) | 2010-04-09 | 2011-03-23 | Multi-channel audio coding using complex prediction and explicit prediction signaling. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TR2019/00414T TR201900414T4 (en) | 2010-04-09 | 2011-03-23 | Decoding a stereo sound signal using complex prediction. |
Country Status (2)
| Country | Link |
|---|---|
| ES (4) | ES2707473T3 (en) |
| TR (5) | TR201900830T4 (en) |
-
2011
- 2011-03-23 ES ES15176783T patent/ES2707473T3/en active Active
- 2011-03-23 TR TR2019/00830T patent/TR201900830T4/en unknown
- 2011-03-23 TR TR2019/01427T patent/TR201901427T4/en unknown
- 2011-03-23 ES ES15176781T patent/ES2704261T3/en active Active
- 2011-03-23 ES ES15176778T patent/ES2708581T3/en active Active
- 2011-03-23 ES ES15176785T patent/ES2704891T3/en active Active
- 2011-03-23 TR TR2019/00906T patent/TR201900906T4/en unknown
- 2011-03-23 TR TR2018/20422T patent/TR201820422T4/en unknown
- 2011-03-23 TR TR2019/00414T patent/TR201900414T4/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES2708581T3 (en) | 2019-04-10 |
| TR201900906T4 (en) | 2019-02-21 |
| TR201900830T4 (en) | 2019-02-21 |
| ES2707473T3 (en) | 2019-04-03 |
| TR201901427T4 (en) | 2019-02-21 |
| TR201900414T4 (en) | 2019-02-21 |
| ES2704261T3 (en) | 2019-03-15 |
| ES2704891T3 (en) | 2019-03-20 |
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