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Test tones, Audio variable bit-rate, Dolby digital (ac-3) – TANDBERG E5714 User Manual

Page 20

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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.

This manual is related to the following products: