Grass Valley ProCoder 3 - Manual (Page 146)

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ProCoder 3
Sample Rate(kHz)
Specifies the number of audio sample per second (in thousands) for the Target. The
reproducible frequency range of the encoded audio depends on the sample rate.
Choosing a higher sample rate produces better sound quality but a larger file size. The
combination of sample rate and bits per sample determine the overall quality of the
audio. The available sample rates depend on the audio encoder selected. The higher
the sample rate, the wider the range of frequencies that can be reproduced. The
maximum reproducible frequency for a given sample rate is one-half the sample rate.
For example, a standard audio CD uses audio that is at 44.1kHz, or 44,100 samples
per second (Hz), which equates to the ability to reproduce sounds up to frequencies
of 22,050 Hz.
Channels
Specifies the number of channels (or channel encoding type) of audio for the Target.
Normally audio is single channel (mono) or stereo (left/right channel), but some audio
codecs allow for different encoding types such as Joint Stereo to store audio in a
more efficient manner. The options listed here depend on the audio codec used -
most codecs support Mono (1 channel) and Stereo (2 channels).
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