Hi, I am looking for some good method to estimate the fomants F1, F2. The method currently I am following is by Schafer and...

Hi, I am looking for some good method to estimate the fomants F1, F2. The method currently I am following is by Schafer and Rabiner, 1970. I am wondering how about the performance of such approach? And is there somewhere I can download the source code in C or Matla

hi guys, If anyone has the following ETSI document plz send it to me,,, (that will be great help!!) GSM 06.71: "Digital...

hi guys, If anyone has the following ETSI document plz send it to me,,, (that will be great help!!) GSM 06.71: "Digital cellular telecommunications system (Phase 2+); Adaptive Multi-Rate speech processing functions; General description". tha

Hi all, I'm looking for a sample g.723.1 ".wav" file for test purpose. Does anyone have this? Thanks, hoping for your...

Hi all, I'm looking for a sample g.723.1 ".wav" file for test purpose. Does anyone have this? Thanks, hoping for your responses. Shaofeng

Hi all, Do anyone know of a way to detect DTMF on a GSM AMR bitstream without fully decoding it? I will be happy to know if...

Hi all, Do anyone know of a way to detect DTMF on a GSM AMR bitstream without fully decoding it? I will be happy to know if you can do it on ITU-T voice codecs as well (G.723.1, G.728, G.729). Thanks

Hi all, I have a simple question: according to the G729/G723 spec, the input buffer should be 16bit linear PCM code, but the...

Hi all, I have a simple question: according to the G729/G723 spec, the input buffer should be 16bit linear PCM code, but the decode of U/A law PCM is 14/13 bit linear code, do I just need shift 2/3 bit before call the G729/G723 codec? What is the standard method to handle this

Hi, Where can I download FREE AMR codec. Is there any Wavelet Based Speech codec FREELY available Regards Syed Moinuddin...

Hi, Where can I download FREE AMR codec. Is there any Wavelet Based Speech codec FREELY available Regards Syed Moinuddin

Hello, I am new to Speech Coding. I was reading through the ITU-T specs for G.723 and G.729. Can anyone enlighten me on the...

Hello, I am new to Speech Coding. I was reading through the ITU-T specs for G.723 and G.729. Can anyone enlighten me on the following aspects: The importance of bandwidth expansion after LPC estimation? Why this expansion is different for G.723(7.5 Hz) and

Hi everybody, Can anybody suggest how to test AMR speech in IF1 format? 3GPP reference code has not implemented this (only IF2 is...

Hi everybody, Can anybody suggest how to test AMR speech in IF1 format? 3GPP reference code has not implemented this (only IF2 is implemented). If anybody can point to resources where IF1 decoders are available, it would be of great help. 3gpp standard defines IF1

Hai, Can you please give me the information regarding this: The code which ITU-T giving G.723.1 containing the input...

Hai, Can you please give me the information regarding this: The code which ITU-T giving G.723.1 containing the input speech files in the format of *.tin files. If we want to make our own tin files from our speech how to make? i.e is there any software availa

The company for which I am working is developing a communications software system based on VoIP technology. We would like our...

The company for which I am working is developing a communications software system based on VoIP technology. We would like our software to include audio compression facilities provided by a G.729A voice codec. The following topics are subject to our interest: -licence for commercial u