Reply by Phil Frisbie, Jr. May 28, 20042004-05-28
Jerry Avins wrote:

> Phil Frisbie, Jr. wrote: > >> learningdsp wrote: >> >>> Hello, >>> I am a beginner and trying to understand the working of G.723 ADPCM. >> >> <snip> >> >> I already answered this exact post on comp.compression. Please learn >> to properly cross post. >> > Phil, > > Since I upgraded it, my browser doesn't mark as read separate instances > of properly cross-posted messages. (I lost some other nice fratures, > too.)
I know what you mean. Are you using Netscape/Mozilla also? I hope they fix this in the next version.
> Jerry
-- Phil Frisbie, Jr. Hawk Software http://www.hawksoft.com
Reply by Jerry Avins May 27, 20042004-05-27
Phil Frisbie, Jr. wrote:

> learningdsp wrote: > >> Hello, >> I am a beginner and trying to understand the working of G.723 ADPCM. > > <snip> > > I already answered this exact post on comp.compression. Please learn to > properly cross post. >
Phil, Since I upgraded it, my browser doesn't mark as read separate instances of properly cross-posted messages. (I lost some other nice fratures, too.) Jerry -- Engineering is the art of making what you want from things you can get. &#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;&#2013266095;
Reply by Phil Frisbie, Jr. May 27, 20042004-05-27
learningdsp wrote:

> Hello, > I am a beginner and trying to understand the working of G.723 ADPCM.
<snip> I already answered this exact post on comp.compression. Please learn to properly cross post. -- Phil Frisbie, Jr. Hawk Software http://www.hawksoft.com
Reply by learningdsp May 27, 20042004-05-27
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,
Thanks,
Still Learning.