Pioneer N-50 Operating Instructions Manual page 15

3. To set the sampling frequency for audio data output from your computer
By synchronizing the sampling frequency of playback files with the transmission sampling rate,
sound can be transmitted without the need for frequency conversion.
Click on [Finder] t [Applications] t [Utilities] t [Audio MIDI Setup].
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Procedure continues.
Select [Pioneer USB Audio Device].
Select the bit rate and sampling frequency for the desired audio file.
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Procedure finished.
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