AR098135A2 - AUDIO CODE AND DECODER TO CODIFY AND DECODE AUDIO SCREENS, METHOD FOR CODING AND DECODING AUDIO SCREENS AND COMPUTER PROGRAM - Google Patents
AUDIO CODE AND DECODER TO CODIFY AND DECODE AUDIO SCREENS, METHOD FOR CODING AND DECODING AUDIO SCREENS AND COMPUTER PROGRAMInfo
- Publication number
- AR098135A2 AR098135A2 ARP140103947A ARP140103947A AR098135A2 AR 098135 A2 AR098135 A2 AR 098135A2 AR P140103947 A ARP140103947 A AR P140103947A AR P140103947 A ARP140103947 A AR P140103947A AR 098135 A2 AR098135 A2 AR 098135A2
- Authority
- AR
- Argentina
- Prior art keywords
- encoder
- audio
- amr
- samples
- audio samples
- Prior art date
Links
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- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Un codificador de audio para codificar muestras de audio que comprende: un primer codificador introductor de aliasing en dominio de tiempo para codificar muestras de audio en un primer dominio de codificación, en donde el primer codificador introductor de aliasing en dominio de tiempo tiene una primera regla de tramado, una ventana de inicio y una ventana de detención; un segundo codificador para codificar muestras en un segundo dominio de codificación, en donde el segundo codificador tiene una segunda regla de tramado diferente y comprende un codificador AMR (Adaptative Multi-Rate; de múltiples tasas, adaptativo) o AMR-WB+ (Extended Adaptive Multi-Rate - Wideband; de banda ancha, de múltiples tasas adaptativo extendido), con la segunda regla de tramado siendo una regla de tramado del tipo AMR de acuerdo con lo cual una supertrama comprende cuatro tramas AMR, teniendo el segundo codificador un número de muestras de audio de tamaño de trama predeterminado para la supertrama, y un período de puesta a punto de un número de muestras de audio, siendo una supertrama del segundo codificador una representación codificada de un número de muestras de audio posteriores en el tiempo, y el número es igual al número de muestras de audio de tamaño de trama predeterminado; y un controlador para conmutar del primer codificador al segundo codificador o viceversa, en respuesta a una característica de las muestras de audio, y para modificar la segunda regla de tramado en respuesta a la conmutación del primer codificador al segundo codificador o del segundo codificador al primer codificador a tal punto que una primera supertrama en la conmutación tiene una número de tamaño de trama demuestras de audio aumentado, y comprende una quinta trama AMR además de las cuatro tramas AMR, con la quinta trama AMR superponiéndose respectivamente con una parta de desvanecimiento de una ventana de inicio o una ventana de detención del primer codificador introductor de aliasing en el dominio del tiempo. El presente comprende además un decodificador, un método de codificación un método de decodificación y un programa de computación.An audio encoder for encoding audio samples comprising: a first time domain aliasing introducer encoder for encoding audio samples in a first coding domain, wherein the first time domain aliasing introducer encoder has a first rule Dithering, a start window and a stop window; a second encoder for encoding samples in a second coding domain, wherein the second encoder has a different second screening rule and comprises an AMR (Adaptive Multi-Rate; multi-rate, adaptive) or AMR-WB + (Extended Adaptive Multi) encoder -Rate - Wideband; broadband, multiple adaptive rates extended), with the second screening rule being a screening rule of the AMR type according to which a superframe comprises four AMR frames, the second encoder having a number of samples of predetermined frame size audio for the superframe, and a period of tuning a number of audio samples, a superframe of the second encoder being an encoded representation of a number of subsequent audio samples over time, and the number is equal to the number of audio samples of predetermined frame size; and a controller for switching from the first encoder to the second encoder or vice versa, in response to a characteristic of the audio samples, and for modifying the second screening rule in response to the switching of the first encoder to the second encoder or the second encoder to the first Encoder to the point that a first superframe in the switching has an increased frame size number of audio displays, and comprises a fifth AMR frame in addition to the four AMR frames, with the fifth AMR frame overlapping respectively with a fade part of a Start window or a stop window of the first aliasing introducer encoder in the time domain. The present further comprises a decoder, a coding method, a decoding method and a computer program.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7985608P | 2008-07-11 | 2008-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR098135A2 true AR098135A2 (en) | 2016-05-04 |
Family
ID=57867934
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP140103934A AR098125A2 (en) | 2008-07-11 | 2014-10-20 | AUDIO CODE AND DECODER TO CODIFY AND DECODE AUDIO SCREENS, METHOD FOR CODING AND DECODING AUDIO SCREENS AND COMPUTER PROGRAM |
| ARP140103947A AR098135A2 (en) | 2008-07-11 | 2014-10-21 | AUDIO CODE AND DECODER TO CODIFY AND DECODE AUDIO SCREENS, METHOD FOR CODING AND DECODING AUDIO SCREENS AND COMPUTER PROGRAM |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP140103934A AR098125A2 (en) | 2008-07-11 | 2014-10-20 | AUDIO CODE AND DECODER TO CODIFY AND DECODE AUDIO SCREENS, METHOD FOR CODING AND DECODING AUDIO SCREENS AND COMPUTER PROGRAM |
Country Status (1)
| Country | Link |
|---|---|
| AR (2) | AR098125A2 (en) |
-
2014
- 2014-10-20 AR ARP140103934A patent/AR098125A2/en active IP Right Grant
- 2014-10-21 AR ARP140103947A patent/AR098135A2/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| AR098125A2 (en) | 2016-05-04 |
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