[Speex-dev] Mips count for a narrowband decoder

[Jim Crichton]

Naveen,

The sample build in the TI directory is set up for narrowband 8kbps, complexity 1.  This runs in about 25 MIPs for Speex 1.2-beta1 for encoder and decoder.  The MIPs will be a lot higher for 24.6 kbps mode, but most of the processing is in the encoder.  I am planning to run some tests with the latest Speex code in the next few days, and I will try to set up a 24.6kbps test at that time, and post the result.  Or, you can try the build yourself on the TI simulator, and play with the settings as you wish.

Note that the sample build has no assembly optimizations, but Jean-Marc's fixed point macros do a good job of leading the compiler to produce efficient code.  If you are concerned about resources on the C55x, memory might be a bigger concern than MIPs, if you are running only the decoder.

Regards,

Jim
  ----- Original Message ----- 
  From: Naveen Kulkarni 
  To: speex-dev at xiph.org 
  Sent: Friday, March 30, 2007 1:27 AM
  Subject: [Speex-dev] Mips count for a narrowband decoder


  Hi,
        What is the MIPS count for the narrowband decoder for 24.6 kbps mode??? Also what is the expected  MIPS count on  say C55x 
  after optimization??
                         Thanks in advance

  Regards,
  Naveen.



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