Mailing Lists: Apple Mailing Lists
Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Setting sampling rate of USB audio device from command line or from Applescript

Hi, I control the application "Audio Hijack Pro" by applescript to do timed recording.
My main source is Satellite PCM radio tuner and its output is 48KHz S/PDIF.
My USB Core Audio device seems to have default sampling rate 44.1KHz and it sometimes defaults to the rate
in an unpredictable way, which make all of resulted sound files useless.

I need a measure to set the sampling rate of my USB device prior to every timed recording. "Audio Midi Setup" and "Sound it Lite" are the only applications I have that can set the sampling rate. Unfortunately both of them are not applescriptable.

I guess I can set the sampling rate by issuing simple USB commands or by calling some Core Audio functions.
Can anyone show me where to start?


---
Hiroshi TOMARU

_______________________________________________
Do not post admin requests to the list. They will be ignored.
Usb mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/usb/email@hidden

This email sent to email@hidden


Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.