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[SpiritBoy]

I have the following line of code -

Bass.BASS_ChannelSetAttribute(_handle, BASSAttribute.BASS_ATTRIB_TEMPO_PITCH, Pitch);

The function returns false, and checking with Bass.BASS_ErrorGetCode() gives me the BASS_ERROR_ILLTYPE error. Since that attribute is also listed in the help doc, I have trouble seeing what's the problem here. Handle was created with BASS_StreamCreateFile, if that changes anything in anyway.

[radio42]

What type is 'Pitch' of and what value are you using when making that call?

[Ian @ un4seen]

A BASS_ERROR_ILLTYPE error indicates that the attribute type is invalid, at least for the specified channel, ie. your "_handle" channel doesn't support the BASS_ATTRIB_TEMPO_PITCH attribute in this case. Note the BASS_ATTRIB_TEMPO_PITCH attribute is only supported by tempo streams, created with BASS_FX_TempoCreate. To apply it to a file, you need to wrap the file in a tempo stream, something like this...

decoder=BASS_StreamCreateFile(FALSE, filename, 0, 0, BASS_STREAM_DECODE); // create a "decoding channel" from a file
tempostream=BASS_FX_TempoCreate(decoder, BASS_FX_FREESOURCE); // create a tempo stream for it
BASS_ChannelSetAttribute(tempostream, BASS_ATTRIB_TEMPO_PITCH, pitch); // set the pitch
BASS_ChannelPlay(tempostream, FALSE); // start playing

Please see the documentation for details on the aforementioned stuff.

[SpiritBoy]

A BASS_ERROR_ILLTYPE error indicates that the attribute type is invalid, at least for the specified channel, ie. your "_handle" channel doesn't support the BASS_ATTRIB_TEMPO_PITCH attribute in this case. Note the BASS_ATTRIB_TEMPO_PITCH attribute is only supported by tempo streams, created with BASS_FX_TempoCreate. To apply it to a file, you need to wrap the file in a tempo stream, something like this...

decoder=BASS_StreamCreateFile(FALSE, filename, 0, 0, BASS_STREAM_DECODE); // create a "decoding channel" from a file
tempostream=BASS_FX_TempoCreate(decoder, BASS_FX_FREESOURCE); // create a tempo stream for it
BASS_ChannelSetAttribute(tempostream, BASS_ATTRIB_TEMPO_PITCH, pitch); // set the pitch
BASS_ChannelPlay(tempostream, FALSE); // start playing

Please see the documentation for details on the aforementioned stuff.

Cheers! Didn't realize I had to wrap it. Thanks, it works now