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wavein
2003 Oct 06
0
hlp: off topic but need experty---How to calculate amplitute of l eaner pcm data
To vorbis expert group:
Sorry to drop this message but I need help :-(
I got the linear pcm data from windows waveio api or vorbis codec. I
think the data is signed. My goal is to construct a db scale(ppm) to display
the volume while playing just like the old tape deck.
The original amplitude is expressed in turn of voltage. I have no
idea how to coverted it in digital form.
I saw a formula like p= 1/n *...