Can anybody please let me know from where I could dowload the source
code for ADPCM G723-24, G721,G723-40.

Also from where can I get the specification document.

I would be really grateful for it.

Thanks & Best Regards
Anshul

Anshul wrote:
> Can anybody please let me know from where I could dowload the source
> code for ADPCM G723-24, G721,G723-40.
>
> Also from where can I get the specification document.
>
> I would be really grateful for it.
>
> Thanks & Best Regards
> Anshul

The procedures for getting free ITU documents are given here:

http://marknelson.us/2006/08/10/free-itu-docs/

The G.723 spec includes source code and test vectors, but I don't know
if you can get them with the free download.

|
| Mark Nelson - http://marknelson.us
|

Hello Mark,

Thanks for your message. Please can you guide me to from where I can
get the G723 specs even if it is not for free. What is the procedure to
get it and how much it will cost.

Thanks a lot for your inputs.

Best Regards
Anshul

markn@ieee.org wrote:
> Anshul wrote:
> > Can anybody please let me know from where I could dowload the source
> > code for ADPCM G723-24, G721,G723-40.
> >
> > Also from where can I get the specification document.
> >
> > I would be really grateful for it.
> >
> > Thanks & Best Regards
> > Anshul
>
> The procedures for getting free ITU documents are given here:
>
> http://marknelson.us/2006/08/10/free-itu-docs/
>
> The G.723 spec includes source code and test vectors, but I don't know
> if you can get them with the free download.
> 
> |
> | Mark Nelson - http://marknelson.us
> |

Anshul wrote:
> Hello Mark,
>
> Thanks for your message. Please can you guide me to from where I can
> get the G723 specs even if it is not for free. What is the procedure to
> get it and how much it will cost.

Anshul, the original post included a URL that documents the process.
Did you read the article?

Barring the enormous effort of actually clicking on a link and reading
a few hundred words, perhaps you could just go to itu.org and look it
up yourself.

Either way is pretty easy.

Mark Nelson - http://marknelson.us

"markn@ieee.org" <snorkelman@gmail.com> wrote:

>Anshul wrote:
>> Hello Mark,
>>
>> Thanks for your message. Please can you guide me to from where I can
>> get the G723 specs even if it is not for free. What is the procedure to
>> get it and how much it will cost.

No specs, but this G.723 code claims to be public-domain:
ftp://ftp.cs.cmu.edu/afs/cs.cmu.edu/data/anonftp/project/fgdata/speech-compression/CCITT-ADPCM/40-32-24kbps/fast_adpcm_ccitt/

Hello,

I could not open the ftp link you sent me when trying to open it I got
the following error..

An FTP protocol error occurred while trying to retrieve the URL:
ftp://ftp.cs.cmu.edu/afs/cs.cmu.edu/data/anonftp/project/fgdata/speech-compression/CCITT-ADPCM/40-32-24kbps/fast_adpcm_ccitt/


Squid sent the following FTP command:

CWD afs

and then received this reply
afs is not available to guest users

Your cache administrator is admin.apigmgr@st.com.

can you guide me to how to proceed to the link.

Thanks Anshul

geezer wrote:
> "markn@ieee.org" <snorkelman@gmail.com> wrote:
>
> >Anshul wrote:
> >> Hello Mark,
> >>
> >> Thanks for your message. Please can you guide me to from where I can
> >> get the G723 specs even if it is not for free. What is the procedure to
> >> get it and how much it will cost.
>
> No specs, but this G.723 code claims to be public-domain:
> ftp://ftp.cs.cmu.edu/afs/cs.cmu.edu/data/anonftp/project/fgdata/speech-compression/CCITT-ADPCM/40-32-24kbps/fast_adpcm_ccitt/

Hello Mark,

I checked your site and then went to itu.org and downlaoded the SW but
it is huge and I still need to decipher what is required from that for
me. It includes lot many examples other than the G726 implementation.

Thanks a lot for guiding me to itu. It is really really helpful.

Best Regards
Anshul

markn@ieee.org wrote:
> Anshul wrote:
> > Hello Mark,
> >
> > Thanks for your message. Please can you guide me to from where I can
> > get the G723 specs even if it is not for free. What is the procedure to
> > get it and how much it will cost.
>
> Anshul, the original post included a URL that documents the process.
> Did you read the article?
>
> Barring the enormous effort of actually clicking on a link and reading
> a few hundred words, perhaps you could just go to itu.org and look it
> up yourself.
> 
> Either way is pretty easy.
> 
> Mark Nelson - http://marknelson.us

"Anshul" <anshul.grover@gmail.com> wrote:

>I could not open the ftp link you sent me when trying to open it I got
>the following error..
>
>An FTP protocol error occurred while trying to retrieve the URL:
>ftp://ftp.cs.cmu.edu/afs/cs.cmu.edu/data/anonftp/project/fgdata/speech-compression/CCITT-ADPCM/40-32-24kbps/fast_adpcm_ccitt/
>
>
>Squid sent the following FTP command:
>
>CWD afs
>
>and then received this reply
>afs is not available to guest users
>
>Your cache administrator is admin.apigmgr@st.com.
>
>can you guide me to how to proceed to the link.

For some reason, the highest directory to which you can "cd"
on that server is
	/afs/cs.cmu.edu/data/anonftp

Anything higher gives the error message. I can access the site
using the text-mode FTP client that came with Windows, and I
can access it with Netscape, but I don't know about Squid.

Anshul wrote:
> Can anybody please let me know from where I could dowload the source
> code for ADPCM G723-24, G721,G723-40.
>
> Also from where can I get the specification document.
>
> I would be really grateful for it.
>
> Thanks & Best Regards
> Anshul
You can find the codec and binary lib from http://www.imtelephone.com

The codec and binary lib are available at http://www.imtelephone.com
but the problem with that is that they are for 16 bit PCM data and the
audio samples available to be after recording are 8 bit companded
(either A law or u law).

Can you help on that. It would be really great.

Thanks & Best Regards
Anshul

Josh wrote:
> Anshul wrote:
> > Can anybody please let me know from where I could dowload the source
> > code for ADPCM G723-24, G721,G723-40.
> >
> > Also from where can I get the specification document.
> >
> > I would be really grateful for it.
> >
> > Thanks & Best Regards
> > Anshul
> You can find the codec and binary lib from http://www.imtelephone.com