Re: Change output device

• Subject: Re: Change output device
• From: Brad Ford <email@hidden>
• Date: Sat, 22 Oct 2005 19:08:56 -0700
• Delivered-to: email@hidden
• Delivered-to: email@hidden

-Brad Ford
QuickTime Engineering

On Oct 21, 2005, at 10:28 PM, LtSolo wrote:

      Thank you Brad,

   I made several experiments with QuickTime and that if I change
Windows default playback device newly started audio tracks start
playing to device I just set as default audio playback. However this
is not very good solution since I receive ALL Windows sounds.
    Is there any way to capture sounds flow into QuickTime without
interaction with Windows sound system? May be building of sound filter
may help.

    Thanks
        Andrey

On 10/21/05, Brad Ford <email@hidden> wrote:

In QuickTime 7 we do not use the Sound Manager to play audio, so
'sdev' components will not help you.  If you just want to get at the
audio data of a movie as PCM, your best bet is to use the
MovieAudioExtraction API's.  See Movies.h in the QuickTime 7 SDK for
Windows.  This suite of API's will let you pull PCM data from a movie
and do whatever you like with it.

If you want to direct audio from a movie to a DirectSound playback
device other than the default Windows one, you'll need to use the:

QTAudioContextCreateForDevice() + SetMovieAudioContext() calls.
Again, see Movies.h.

-Brad Ford
QuickTime Engineering

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