g.729 codec matlab source code
Posted 21 December 2006 - 02:26 PM
Posted 22 December 2006 - 08:15 PM
Posted 22 December 2006 - 09:35 PM
If you don't find something, the simplest explanation is that it's just not there. MATLAB source code of advanced codecs are not exactly widespread. If you're lucky you might find C implementations though.
Is this for a school project? In that case you probably should be able to implement it yourself with what you've learned in the course and the specifications that are available. If not, contact your instructor...
Posted 24 December 2006 - 07:19 PM
Posted 24 December 2006 - 10:29 PM
Posted 25 December 2006 - 06:32 AM
Posted 26 December 2006 - 09:02 AM
This is an audio codec, so first set up a framework where uncompressed audio goes into a coder, it's sent through a channel, gets decompressed in the decoder, and then is made audible. In your first version the coder, channel and decoder don't have to do anything. Just make sure you get the structure right and can pass the data through. A small and simple task.
CS-ACELP is based on ACELP, and ACELP, is based on CELP, and CELP is based on LPC. So start with the latter, a small and simple task, and verify that it works correctly by testing it with the framework. Only then implement the changes for CELP, ACELP, and CS-ACELP. All small and simple tasks. In the end you have completed a large and complex task.
During the process you could look for other implementations, but in general this will just slow you down. If something doesn't work, split it into even smaller pieces and test each of them individually.
Just start coding. Good luck!
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users