Section B - Audio Input And Processing; Audio Input - Cisco D9054 Installation And Operation Manual

Section B - Audio Input and Processing

Audio Input

General
Inputs
Connector
Number of channels
Dolby Digital Encoding
Encoding
Audio Coding Modes
Audio data rate
Sample frequency
Dolby Digital Audio Performance (at 640 kbit/s)
SINAD at 1,020 Hz
Idle channel noise
AAC Passthrough
Pre-encoding
Audio data rate
Sample frequency
4038938 Rev A
Item
Item
Item
Item
D9054 HDTV Encoder Installation and Operation Guide
Specification
Digital AES/EBU and embedded
2 BNC
4 mono Dolby Digital channels
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
Specification
> 80 dB
< -86 dB A-weighted
Specification
Encoding by external AAC encoder
according to ATSC Standard: Digital Audio
Compression (AC-3) Rev. A, August 2001.
32, 40, 48, 56, 64, 72, 80, 96, 112, 128, 144,
160, 176, 192, 224, 256, 288, 320, 352, 384,
416, 448, 512, 576 and 640 kbit/s
32, 44.1 and 48 kHz
A-5