VBrick Systems Understanding Bit Rate and Sample Frequency for

Sample Frequency	See Bit Rate and Sample Frequency for all settings. Frequency at which
	the audio is sampled at the encoder. Range 8–48 KHz. Shown for
	Audio Rate1 only. Audio Rates2 and 3 share this common value. If
	Audio Rate2 or Audio Rate3 s enabled, the Sample Frequency is
	automatically set to 44.1 KHz.
Audio Rate2	Use to configure multiple bit rates. Check Enabled to display
	configuration settings for Audio Rate2. Once enabled, AudioRate2 and
	AudioRate3 are available for selection on the Multicast, Server, and
	Archiver pages. If selected on those pages, an error will display if you
	attempt to disable them on this page.
Audio Rate3	Use to configure multiple bit rates. Check Enabled to display
	configuration settings for Audio Rate3.

Bit Rate and Sample Frequency

The following are the allowed combinations of Bit Rate and Sample Frequency when Audio

Channels is Stereo or Mono (left only) or Mono (L+R).

Table 11. Audio Channels: Stereo/Mono †

Stereo		Mono
Bit Rate (bits/sec)	Sample Frequency (KHz)	Bit Rate (bits/sec)	Sample Frequency (KHz)
192000	48	48000	44.1
192000	44.1	32000	44.1
160000	48	20000	32
160000	44.1	20000	22.05
128000	48	16000	22.05
128000	44.1	16000	16
96000	44.1	12000	16
80000	44.1	10000	16
64000	44.1	10000	11.025
48000	44.1	8000	11.025
48000	32	8000	8
40000	32	6000	8
32000	44.1	5000	8

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