Test tones, Audio variable bit-rate, Dolby digital (ac-3) – TANDBERG E5714 User Manual
Page 20
Introduction to the Basic Encoder
Page 1-12
Instruction Manual: evolution 5000 E57xx DSNG and DENG Voyager Encoder
ST.TM.E10076.3
Test Tones
The equipment can be configured to generate a test tone for alignment
purposes. Refer to Annex B, Technical Specification for level and
frequency.
Audio Variable Bit-rate
MPEG-1 audio output bit-rate (see Table 1.5) is selectable in the range
32 kbit/s -384 kbit/s (dependent on configuration).
Table 1.5: MPEG-1 Audio Encoding Bit-rates
Bit-rate
(kbit/s)
Single
Channel
Mono
Dual
Mono
Stereo
Joint Stereo
32
3
-
-
-
48
3
-
-
-
56
3
-
-
-
64
3
3
3
3
80
3
-
-
-
96
3
3
3
3
112
3
3
3
3
128
3
3
3
3
160
3
3
3
3
192
3
3
3
3
224
-
3
3
3
256
-
3
3
3
320
-
3
3
3
384
-
3
3
3
Dolby Digital (AC-3)
Dolby Digital (AC-3) audio encoding incorporates digital normalisation,
preprocessing (filtering), dynamic range compression and the addition of
bit-stream information.
Dolby Pro Logic audio can be carried as stereo audio through the Encoder
as long as a suitably high bit-rate is selected.