NOTE: This Technical Q&A has been retired. Please see the Technical Q&As page for current documentation.

Technical Q&A QTW30
Intercepting Audio from QTW

Q Is it possible to intercept audio from QuickTime for Windows before it gets to the drivers so I can mix other sound effects with it?

A There is no easy way to intercept the sound output from the QuickTime for Windows engine. The best way is to write a virtual sound driver that supports multiple waveform output channels.

QTW would use one virtual channel while your application feeds another and controls the volumes of each. The driver would then mix all channels and pass the results to the standard waveform sound driver.

[Jul 01 1995]


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