Search found 8 matches

by esolve
Tue Jul 19, 2011 6:43 pm
Forum: Audio Processing
Topic: about G729 framing details
Replies: 5
Views: 2200

Re: about G729 framing details

thank you for your post, but it is a bit abstract form me
Can you help explain the questions I listed in the post?
Thanks!
by esolve
Tue Jul 19, 2011 3:07 pm
Forum: Audio Processing
Topic: about G729 framing details
Replies: 5
Views: 2200

Re: about G729 framing details

thanks for your information but I think this information is not to my point, thanks though I don't know that much about these formats, but I do understand bitrates and their relationship to file size. Bitrate is kilo bits per second, and (as you probably know) there are 8 bits in a byte. If you know...
by esolve
Mon Jul 18, 2011 6:52 pm
Forum: Audio Processing
Topic: about G729 framing details
Replies: 5
Views: 2200

about G729 framing details

HI, all I have a question on G729 framing details I used a G729 codec to encode a .wav file before encoding, it is about 300 KB after encoding using G729 without VAD , the encoded G729 file is still about 300 KB, why isn't there any compression on bytes? after encoding using G729 with VAD, the encod...
by esolve
Thu Feb 10, 2011 10:33 pm
Forum: Audio Processing
Topic: about Codec and PLC(packet loss concealment)
Replies: 1
Views: 1528

about Codec and PLC(packet loss concealment)

hi, all I need to decode some .raw files which are encoded with a certain codec such as G711 u-law, G729 and iLBC these .raw files are obtained from VOIP streams, so some of them are with packet loss. I have downloaded a G729 codec, iLBC codec I want to know 1) how to know whether these codec can de...
by esolve
Thu Feb 10, 2011 10:59 am
Forum: Audio Processing
Topic: are there any tools or methods for recognize/detect codec
Replies: 4
Views: 860

are there any tools or methods for recognize/detect codec

for example, I have .raw file, which is a audio file encoded with a certain codec
I want to know the codec details, for example, if the codec is iLBC, I want to know whether its frame size is 20 ms or 30ms;if the codec is G729, I want to know whether it is G729A,G729B or G729E....

thank you!
by esolve
Thu Jan 20, 2011 12:28 am
Forum: Windows
Topic: How to input sound directly from a audio player
Replies: 3
Views: 972

How to input sound directly from a audio player

*duplicate removed*
by esolve
Thu Jan 20, 2011 12:26 am
Forum: Windows
Topic: How to input sound directly from a audio player
Replies: 3
Views: 972

How to input sound directly from a audio player

I want to do an experiment reference .wav file(signed 16bit, 8000Hz) ----> audio_player --------> VOIP program on computer A -----------> network ----------------> VOIP program on computer A ------------->audio recorder when I use 'mixer' mode of recording device on Windows system for transferring s...