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PCM sound processing, what comes after byte array to float array conversion?

Discussion in 'Android Media' started by sarah.kho, Nov 6, 2010.

  1. sarah.kho

    sarah.kho New Member
    Thread Starter

    Nov 3, 2010

    I am fairly new to the sound processing and some stuff bugs me, if you have answer to my following questions please help me with them.

    - I have PCM data in the 16bit format, therefore I need to convert them to float and then apply some algorithms on them. The float conversion means that I each 4 bytes of the pcm will be converted to 1 float number

    - Now that I have the float numbers, what exactly these float numbers represent? I think they are the real part of the whole sound wave, is that right?

    - This float numbers, are they the the y axis of the sound graph or the byte numbers are the y axis of the graph?

    Please help with this questions, any one of them that you know can shed lights on my doubts.


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