Hi, Now I am working with ITU-T's G729 recommendation.The size of the input I given to this coder was 586 KB(16 bit PCM mono)and I got the...

Hi, Now I am working with ITU-T's G729 recommendation.The size of the input I given to this coder was 586 KB(16 bit PCM mono)and I got the output as 600 KB. Is this output's size is right or not? I think that, as an encoder it's output size should be less than input size( That is why we are encoding). The output is right,then What is the reson? Please clear my doubts immediately. Thanks in ...

Hai, I am a new member of this group.I am a 6th sem MCA student.Now I am trying to implement G729 codec.Till now i didn't get a clearcut idea...

Hai, I am a new member of this group.I am a 6th sem MCA student.Now I am trying to implement G729 codec.Till now i didn't get a clearcut idea about 16 bit linear PCM file format.What is samples init? Please give response. Thanks in advance Bineesh Jose

hi all, G.729 recommendation states:-to predict the values of LSF a 4th oreder MA is used.Two predictions are possible .the encoder...

hi all, G.729 recommendation states:-to predict the values of LSF a 4th oreder MA is used.Two predictions are possible .the encoder chooses which one to use and indices it with a bit in the bit stream. after prediction ,prediction error is computed .this error is sent to decoder by vector quantizing it. my que is what are these two possible predictions ? what is MA prediction? can any...

Hi all, Now I am working with ITU-T's G.729 recommentation. I have one doubt.As you know In G.729 Codec the compression rate is 1/8. But...

Hi all, Now I am working with ITU-T's G.729 recommentation. I have one doubt.As you know In G.729 Codec the compression rate is 1/8. But here in 10 ms, 80 words(160 bytes) are compressed into 80 bits(10 bytes).Then how can we say this is 1/8th compression? Please clear my doubt. Thanks in advance Bineesh Jose

Hi All, Now I am working with ITU-T's G.729 Recommendation.My input to encoder is one .wav file and got .bit file as output. Then I gave...

Hi All, Now I am working with ITU-T's G.729 Recommendation.My input to encoder is one .wav file and got .bit file as output. Then I gave this .bit file as input to the Decoder and I got a .wav file as output.My first .wav(encoder input)file was properly work in Real One Player(Others also).But the Decoder output was not playing.What is the reson for it? How I will get a properly playing one?...

Hi, Plz help me to use AMR Fxd Point NB codec for VoIP application on Pocket PC. Source code is downloaded from 3GPP & Tested with 3GPP...

Hi, Plz help me to use AMR Fxd Point NB codec for VoIP application on Pocket PC. Source code is downloaded from 3GPP & Tested with 3GPP test vector. But its not giving proper output in Device with real time data. But data rate while encoding is 160bytes to 250bytes (increasing) Why is it increasing instead of compressing ?? Where i need to use WB .. ? Plz help to solve this issue ...

Apologies for multiple posting. Dear colleague, Registration for the DAFx-06 conference is open. Detailed information and registration form...

Apologies for multiple posting. Dear colleague, Registration for the DAFx-06 conference is open. Detailed information and registration form can be found at: http://www.dafx.ca/dafx06_registration.html Note that the deadline for early registration is August 7, 2006. The three-day program will be available soon. There will be 64 papers presented (no parallel sessions): - 39 or...

Hi All, I am using reference G.726 code of ITU software tool library. I am now testing the code using VC++. It is said that the reference code...

Hi All, I am using reference G.726 code of ITU software tool library. I am now testing the code using VC++. It is said that the reference code takes A-law or Mu-law coded input and outputs the same, but the code takes 2 bytes of input( short ) and A-law coded should be one byte. I am getting wrong output. can any one help in this regard?? Regards, Vijay

Hi Everybody I am working with the code Downloaded from 3GPP AMR Floating-point Speech Codec (TS 26.104).. i am looking at the Test...

Hi Everybody I am working with the code Downloaded from 3GPP AMR Floating-point Speech Codec (TS 26.104).. i am looking at the Test sequences for AMR(3GPP TS 06.74 V7.3.0 ) and want to use these test vectors to test the AMR code performance so i have got Files for input to the speech encoder: *.INP Files for comparison with the encoder output and for input to the speech decoder: ...

Dear List: I was reading the book, "Speech Coding and Synthesis" by Kleijn & Paliwal. In page 445, from the table we see that for scalar...

Dear List: I was reading the book, "Speech Coding and Synthesis" by Kleijn & Paliwal. In page 445, from the table we see that for scalar quantization of the reflection coefficients, it costs 4 bits per parameter for 1 dB distortion. Similarly, in page 447, from the table we see that for LAR scalar quantization, it costs 3.2 bits per parameter for 1 dB distortion. The above numbers are for ...