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Speech and audio processing on the 5515 EVM

Brad Clements
Prodigy 40 points
Other Parts Discussed in Thread: TMS320C5515

Does anyone know where I can get a boilerplate sample program to exercise the audio capture/playback and speech recognition functions of the TMS320C5515 EVM from Spectrum Digital.  I'd like to test some basic functionality and calculate the storage requirements for audio prompts.

 

Thanks,

Brad Clements

  • 0 in reply to Hyun Kim
    Prodigy 40 points

    I've seen this page, but there doesn't seem to be any code samples.

    I'm working with CCS4 and the TMS320C5515 EVM.

    I'm trying to set up DMA and EMIF (NAND Flash) to capture digital audio from the aic3204.

    I'd like to then play this data back through the headphone output.

    My application requires the use of  "canned" audio prompts and performs real-time audio capture for speech recognition.

    Does an example in 'c' exist that demonstrates how to accomplish storage of data captured by the microphone ?

    I've tried integrating the test programs, but I'm getting errors reading flash pagenums > 3.

    Even the sample test program has this behavior... what am I doing wrong?

    Thought it used to work.

    could the project settings have gotten blasted somehow by another project import?

    Brad Clements

  • 0 in reply to Brad Clements
    Prodigy 40 points

    I found out that SDRAM gives me 8MB of storage using plain pointers to move the data from the codec as it comes in.

    Recording and playback was a snap, but I'm still looking for a audio prompt managment system.

    I may have to write one (wouldn't be the first time...)

    Still having issues using nand and nor flash on the EVM..

    Brad Clements