USB audio input
USB audio input
- Subject: USB audio input
- From: "Mark Rowan" <email@hidden>
- Date: Fri, 5 Mar 2004 09:23:56 -0600
Hello All,
I am seeing a strange failure with a USB input-only audio device. When
the Mac goes to sleep while the device is streaming, it will
occasionally fail on wake-up or fail immediately upon entering sleep.
When the failure occurs, a short piece of the incoming audio stream (a
few frames?) begins looping continuously. Unplugging the device kills
the audio loop, but the system activity then slams immediately to
98-100% and the machine must be rebooted.
The event has occurred on two different PowerBooks (15" and 17") both
running OSX (10.3.2).
The problem has never been duplicated on a Windows machine, so I'm
wondering if our current UI is violating something in the CoreAudio api
(I'm posting this to CoreAudio and USB lists). But that's just a guess;
it could easily be an interaction with the device firmware.
Any clues as to where to sniff for smoke?
Mark Rowan
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.