Cisco D9054 Installation And Operation Manual page 262

Audio Input,
Continued
Linear Audio Encoding
No. of channels
Encoding
Sample frequency
Resolution
Transmission
Passthrough of Dolby E
Pre-encoding
Linear Audio/Dolby E Performance
Frequency response
SINAD at 1020 Hz
Idle channel noise
Dolby Digital Encoding
Encoding
Audio Coding Modes
Audio data rate
Sample frequency
A-6
Item
Item
Item
Item
D9054 HDTV Encoder Installation and Operation Guide
Specification
Up to 4 stereo per audio encoder.
Linear
48 kHz
20 bits
According to SMPTE-302M
Specification
Encoding by external Dolby E encoder
according to ATSC Standard: Digital Audio
Compression (AC-3) Rev. A, August 2001.
Specification
+/- 0.15 dB re. 1 kHz: 20 to 20,000 Hz
>80 dB, 3 dB below clipping
<-80 dBq0ps, weighted acc. to ITU-R Rec.
468
Specification
According to ATSC Standard: Digital
Audio Compression (AC-3) Rev. A, August
2001.
Dual Mono 1+1, Mono 1/0, Stereo 2/0
56, 64, 80, 96, 112, 128, 160, 192, 224, 256,
320, 384, 448, 512, 576 and 640 kbit/s
32, 44.1 and 48 KHz
4038938 Rev A