Looking for information related to voice codec

[razwell]

voicecodecs

Hello my friends...
i'm looking for any informations about voice codec.
can somebody give me something avail like articles, circuit diagrams, books or links related to this topic..
i need to build a voice codec (with its circuits - coder n decoder)
thank to all...

 

[hr_rezaee]

digital voice encoder circuit

hi
do you mean vocoders such as melp, celp and etc
regards

 

[razwell]

binary code for human voice

hello..
i need to build a codec (coder-decoder)
convert analog signal (human voice) to digital (binary) n then change back the digital signal to analog signal.
yes it is vocoder, but i dont know what u mean by melp n celp..
somebody..plzz help me

 

[hr_rezaee]

voice codec circuit

hi
melp and celp and selp and ... are type of vocoders.
you can find C code of melp 2400 in web.
you can find block of celp in matlab demo.
regards

 

[svicent]

Re: Voice CODEC

See:



svicent

 

[Shohdy]

Re: Voice CODEC

Hi,

Do you want to build this vocoder using hardware such as FPGA and stuff like that, or in Software such as C/C++ or Matlab???

Regards,
Shohdy

 

[razwell]

Voice CODEC

i need to build this voice codec using hardware..
i need a circuit that can convert analog signal (human voice) to digital signal (binary code)

 

[hr_rezaee]

Re: Voice CODEC

i need a circuit that can convert analog signal (human voice) to digital signal (binary code)

Hi
if you wantto conver analog signal to digital just use adc and you don't need any thinh else.
vocoder compress digital voice.
regards

 

[on1aag]

Re: Voice CODEC

Hi Razwell,

Try this: https://focus.ti.com/docs/prod/folders/print/tlv320aic28.html

on1aag.

 

[sanjeevi]

Re: Voice CODEC

Silabs providing Low cost Voice codec IC

Check this PDF ..may get gud info ,,,,

http://www.mysilabs.com/public/documents/marcom_doc/pbrief/Wireline/Voice_Codec/en/Si3000-PB.pdf

regards
Sanjeevi