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Change Volume on Default Output Device

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Change Volume on Default Output Device

Subject: Change Volume on Default Output Device
From: Doug Zwick <email@hidden>
Date: Tue, 26 Sep 2006 11:47:44 -0600

I'm converting some old Sound Manager code to use Core Audio. I'm using the DefaultOutputUnit example as the basis for the sound output code, and am using QA 1016 as the basis for changing the device volume setting (setting the kAudioDevicePropertyVolumeScalar property). However, this technique changes the master system volume. In the old Sound Manager code, changing the volume only changed the level of the one channel, not the entire system volume. How does one go about doing this in Core Audio? Can I still use the default output device (I need to be able to specify the output sample rate, and the default output device will automatically resample to the native device rate for me)? _______________________________________________ Do not post admin requests to the list. They will be ignored. Coreaudio-api mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden Follow-Ups: Re: Change Volume on Default Output Device From: Jeff Moore <email@hidden> Prev by Date: Re: AU surround hosts Next by Date: Re: Change Volume on Default Output Device Previous by thread: Re: upsampling and CompressionInfo Next by thread: Re: Change Volume on Default Output Device Index(es): Date Thread