How to generate PCM wave for a specific duration? RRS feed

  • Question

  • I am new to audio domain.

    I have generated PCM wave format for a DTMF (dual tone multiple frequencies) tone using data like samples per second, bits per sample, number of channels etc..  

    I am able to successfully generate it. However I need to generate PCM data for a specified duration.

    Can you please provide me pointers or direction?

    Thanks in advance.

    Note: I could hear the DTMF tone for a limited duration only. And want to know how to increase the duration. When I use the same DTMF filter in the graphedt.exe  I could see that the same generated PCM sign wave is getting played again and again with some wired sound in between.

    I want to generated a PCM sign wave for a longer duration. Note sure which params i need to modify.

    • Edited by garib_ytl Wednesday, July 25, 2012 2:46 PM
    Wednesday, July 25, 2012 12:29 PM