.wav input to g.723 | Speech Coding

Technical discussions related to Speech Coding (all itu and other vocoders, ACELP, CELP, AMR, etc)

Hello, I am a beginner and trying to understand the working of G.723 ADPCM. I have been able to get all the C files from ITU for the G.723 ADPCM. I have a basic question. According to the documentation and block diagram the first block converts the input signal from linear or A-law or U-law to uniform PCM signal. Then come the next steps of finding the difference signal, etc.. I have written code to read in a .wav file one sample at a time(16 bit, sampled at 8000 Hz). That is I read in 16 bits. Then I want to give this as input to the G.723 codec. Can I do this? Can I give the program a .wav (16 bit, sampled at 8000 Hz) input? Do I have to modify it in any way before giving as input to this program. After doing the encoding and decoding, I again want to write the output to .wav file. Can I do this? Sorry, this might be too basic for some of you, but I am trying to understand the working of this. Hoping for a reply, Neo.

(You need to be a member of speechcoding -- send a blank email to speechcoding-subscribe@yahoogroups.com )

Sign in

Search speechcoding

Subscribe to speechcoding

speechcoding by Keywords

Ads

Discussion Groups

Discussion Groups | Speech Coding | .wav input to g.723

.wav input to g.723 - learningdsp - May 27 20:39:00 2004