WAV Pitch

How to change the pitch and playback rate of a WAV file. Demonstrates low level wave audio functions. The hardware must support the pitch change, but there is a "manual" method included for changing the playback rate. 

About this post

Posted: 2017-09-10
By: BlackBeltVB
Viewed: 576 times

Categories

Visual Basic 6

Attachments

WAVPITCH.ZIP
Posted: 9/4/2017 5:29:52 AM
Size: 4,696 bytes

Requirements

This code originally appeared on BlackBeltVB.com, and has been republished here with the permission of Matt Hart.

Special Instructions

Uses the following API functions:

• CopyMemory (RtlMoveMemory)
• GlobalAlloc
• GlobalFree
• mmioAscend
• mmioClose
• mmioDescend
• mmioOpen
• mmioRead
• mmioStringToFOURCC
• waveOutClose
• waveOutGetDevCaps
• waveOutOpen
• waveOutPrepareHeader
• waveOutReset
• waveOutSetPitch
• waveOutSetPlaybackRate
• waveOutSetVolume
• waveOutWrite

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