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
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    Nov 3, 2010
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    Hi,

    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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