Help File
Windows driver v2.2
Macintosh driver v2.0

General

Windows OS

Mac OS

Audio Software Notes


 

Recording Audio in Mac OS

To record audio with the USBPre, the USBPre needs to be selected as the audio input source. Audio software applications may select audio hardware independent of the selection in the Mac Sound Control Panel (see your software documentation to select audio hardware).

Sample Rates

Software applications address the USBPre at the sample rate defined by the USBPre hardware. Valid sample rates for recording with the USBPre are 32 kHz, 44.1 kHz, and 48 kHz. From the factory, the USBPre is configured to record at 44.1 kHz. To select between various sample rates, the sample rate must be set in the USBPre firmware (see Configuring Record Sample Rates). Due to Apple Sound Manager limitations, bit depth is limited to 16-bits with any Sound Manager hardware, including the USBPre. Some recording applications may show many other "valid" sample rates or bit depths for the USBPre. These should not be used and can cause choppy audio and/or system crashes. 

Any sample rate from 5 to 55 kHz can be played back on the USBPre at 8 or 16 bits.

 

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