C.1 Platform dependencies
- Mac OS X: Audio Interface CoreAudio only supports sample rates
supported directly by the hardware. Use ’JavaSound’ interface for other
smaple rates on Mac OS X later than 10.7.
- Windows XP,?: If the built-in USB audio driver is used, the sample rate
will be set to 22.05 kHz when a Windows system beep is output via
an M-Audio mobile pre USB device. SpeechRecorder does not detect this
change of sample rate. All subsequent recordings will be made using the
new sample rate. Solution: make sure to install and select the most recent
M-Audio device driver from http://de.m-audio.com/.
- Windows 7,8: The operating system distinguishes audio devices of the
same model by inserting a counter number in the device name. This only
happens if you connect the same device to different (USB) ports. It is
recommended to always connect to the same USB port.