Hello, I am implementing a simple mixing program (i.e. create a new sound file combinig two initial files - all the same format). I have...

Hello, I am implementing a simple mixing program (i.e. create a new sound file combinig two initial files - all the same format). I have implemented this for WAV files (PCM) and now I want to support AMR. I can do this in 2 ways: 1. convert to PCM and reuse the mixing code - I cannot find any documentation on how to convert an AMR frame to PCM samples. What happens after I reorder ...

hi, Can someone provide be the C code to convert from A-law to linear and vice versa. thanks, robert

hi, Can someone provide be the C code to convert from A-law to linear and vice versa. thanks, robert

Hi I am looking for these thesis: ...

Hi I am looking for these thesis: ------------------------------------------------------------------------------------------------ -- 1-Lukasiak, "Techeniques for low-rate scalable compression of speech signals", Phd. Thesis, University of Wollongong, 2002 3- H. Dong, "SNR and bandwidth scalable speech coding", Ph.D. thesis, Southern Methodist University, Dallas, Texas, December 2002. 2-N.R

Hi everyone, I am from SSN college of engg doing ME . I need to use the g.729 codec for a PG project in Blackfin ADSP BF533 Could u send...

Hi everyone, I am from SSN college of engg doing ME . I need to use the g.729 codec for a PG project in Blackfin ADSP BF533 Could u send me the g.729 encoding / decoding algorithm ( C Coding ) or is there any web page with a detailed description of the encoding / decoding process please help me thanks in advance yours truly, arulrajan

Hei guys, How to tackle this problem of pitch detection where I get the pitch Period detected 22 or 44 or 66 samples but in reality it was always...

Hei guys, How to tackle this problem of pitch detection where I get the pitch Period detected 22 or 44 or 66 samples but in reality it was always a period of 22 samples. I am using AMDF , does center clipping will help? Regards, D.Pal

Hi All, I'm looking for a sample g729a encoded file. I already have a ".wav" file encoded in g729a. But I want only raw data, meaning a...

Hi All, I'm looking for a sample g729a encoded file. I already have a ".wav" file encoded in g729a. But I want only raw data, meaning a ".g729a" file. If anyone knows how to convert that or has any sample file, kindly let me know. Thanks in Advance.

I'm currently doing my project about implementation of voice codec in DSK C5510 i'm using G723.1 as my reference of LPC but i found that is...

I'm currently doing my project about implementation of voice codec in DSK C5510 i'm using G723.1 as my reference of LPC but i found that is very hard for me to understand the code what i want is just a simple LPC for implementation Anyone have the LPC code for reference???

I have just bought an voice recorder (Speed-Link PDR-3) but it contains just a windows converter to transform its own recorded voice files into...

I have just bought an voice recorder (Speed-Link PDR-3) but it contains just a windows converter to transform its own recorded voice files into wav/mp3 formats. I would like to use it in Linux and I'm ready to make an converter just I should know more about the file formats and the transformation algorithm it uses. In the windows dll I found just 2 interesting messages: - ADPCM Encode OK - un...

> > > > Phil- > > > I tracked this down a few years ago.... > > > > The MELP patents were sold to ASPI, which was...

> > > > Phil- > > > I tracked this down a few years ago.... > > > > The MELP patents were sold to ASPI, which was purchased by Polycom. You must > > contact them to get licensing information. http://www.aspi.com > > This is incorrect; Polycom has nothing to do with MELP. Read this carefully: > > http://www.aspi.com/tech/ > > The correct info is as fol

Hi all, I am doing a project in subband adaptive filtering using Cosine Modulated Filter Banks (by Dr .P.P Vidyanathan ) without any...

Hi all, I am doing a project in subband adaptive filtering using Cosine Modulated Filter Banks (by Dr .P.P Vidyanathan ) without any analysis and synthesis filters. So, i am not getting any improvement interms of computational complexity.Can anyone help me with the implementation of analysis and systhesis filers or some reference..plzzzz.. Regards