That needs resampling the audio wich is a high CPU demanding task. Not sure if OpenAL can do it, but the standard MAX audio engine (and most multiemdia audio engines) can't resample several audio channels at real time.
Audio - Master Pitch
BlitzMax Forums/BlitzMax Programming/Audio - Master PitchThe Forum Archive is locked. These are the original blitzbasic.com forums, kept so their posts can still be read and searched. No new topics, replies or edits can be made here. To join the conversation, head over to the Blitz3D+ forums.