About optimizing (fixed point) DSP : using multiply command or filter routins | Speech Coding

Technical discussions related to Speech Coding (all itu and other vocoders, ACELP, CELP, AMR, etc)

Hello I am working on implimenting amr codec for the 3rd generation of mobile communications on a DSP platform, my code is very long and when I run it by simulator for tms320c55x it taked 20 milion clicks to do one frame!! my first question is that which DSP do you recommend me to use for a code that takes for example 400K bytes. my main question is : I have many calls for a mult,add, ... operations and filter operations because it shoud be a multiplication in fixed point format --> (16)* (16) = (16)-> not (32). so I want to use the commands in DSP that do filtering or multiplication in DSP so I can reduce my code alot.or I can write assembly code for mult ..to run faster, every one who can help me plz answer. thanks alot for your kindness, Hossein ************************************************** Mohammad H. Asghari Sharif University of Technology Department of Electrical Engineering System Communications group Website: http://ee.sharif.edu/~mhasghari TELEPHONE: +98 (21) 77460056 **************************************************

(You need to be a member of speechcoding -- send a blank email to speechcoding-subscribe@yahoogroups.com )

Sign in

Search speechcoding

Subscribe to speechcoding

speechcoding by Keywords

Discussion Groups

Discussion Groups | Speech Coding | About optimizing (fixed point) DSP : using multiply command or filter routins

About optimizing (fixed point) DSP : using multiply command or filter routins - hossein200000 - Oct 13 4:28:00 2005