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[dman10001]

I know how to get the data using BASS_ChannelGetData(), but I'm having problems using the data.

I looked at the samples for BASS spectrum, but  do not know how to read the structure of the PCM  data.   I used a float to avoid the 8 and 16 bits calculation.

Is it reading it every 4th of data ? or what?

I get something like a waveform, but it do not look right.

Please Help.

[radio42]

With BASS_ChannelGetData you can either get PCM sample data or FFT data.
So lets assume you get PCM sample data.
When using the FLOAT flag you'll get 4bytes (a float value) for each sample interleaved, meaning left, right, left, right etc. (when its a stereo stream).