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RTOS/PROCESSOR-SDK-OMAPL137: OMAPL137

Part Number: PROCESSOR-SDK-OMAPL137

Tool/software: TI-RTOS

I am running the OMAPL137_bf_rt project and it fails to build because it cannot find the pdk_omapl13x_1_0_0 package.  Where can I download this package?

Steve

  • Hello Steve,

    The PDK package comes bundled with Processor SDK RTOS, which can be downloaded from here:
    www.ti.com/.../PROCESSOR-SDK-OMAPL137

    Instructions on building and running the pre-processing demo can be found here: processors.wiki.ti.com/.../Processor_SDK_RTOS_Audio_Pre-Processing

    If you have any questions please let us know.
  • Hi, was able to get the demo running. I am using the tidud76a.pdf for reference. In this document there is a reference to1. Texas Instruments, Processor SDK RTOS Audio Pre-Processing , Wiki Page for a procedure on how to update the coefficients. The link in this document is the same as called out in your previous reply. The document does not contain the procedure on how to update the coefficients. Appears these wiki pages have been removed and separate documents generated to replace them. Can you point me to the document that contains the procedure to modify coefficients?

    3.2.1.4 Changing the Filter Coefficients
    The beamforming filter coefficients depend on the geometry of the microphone array. The synthetic, raw
    audio data files that are part of this project in directory
    C:\ti\processor_sdk_rtos_omapl137_xx_xx_xx_xx\demos\audio-preprocessing\common\t8 were generated
    under the assumption that the microphones are along a circular array of seven microphones. The filter
    coefficients in the this project were calculated accordingly. Should the user wish to use a different
    microphone array or use prerecorded raw data recorded from microphones in a different geometry, new
    filter coefficients are necessary. Section 3.2.1.5 describes how to calculate a new set of filter coefficients
    for the geometry of the microphone array. The new filters' coefficients buffers are updated and the project
    should be rebuilt. See Processor SDK RTOS Audio Pre-Processing [1] for instructions to add new filter
    coefficients.

    Steve
  • I'm not sure why the instructions are missing, but the filter coefficients are changed by taking the values generated by the Matlab bf_tool in section 3.2.1.5, and replacing them in C:\ti\processor_sdk_rtos_omapl137_xx_xx_xx\demos\audio-preprocessing\common\components\sysbfflt.c.
    The tool will generate angle specific coefficients.