GatesAir PTR-255 Program Audio Codec Module
Intraplex Products Issue 2.1, February 2006
2.3.1.1 AES/EBU Consumer Format
PTR-255 set to consumer mode
Transmitter classification:
Key: TX: N = not transmitted; Y = transmitted
RX: N = not recognized; Y = recognized; S = recognized and passed through
Table 2-1
AES/EBU Channel Status (C) Data: Consumer Format
0 Consumer use
1 Prof use
RX: responds to either format
TX: can be set to either format
0 copy prohibited
1 copy permitted
000 two channels without
emphasis
100 two channels with
50/15uS emphasis
RX: detects and removes
emphasis before transmission
TX: always sends without
emphasis
000000 2 channel, general
format
L-bit
0 digital copy prohibited
1 digital copy permitted
TX Validity bit handling:
When in 2 channel mode, any unmitigated A channel error mutes the A channel
outgoing audio and sets the A channel validity bit to 1; any unmitigated B channel
error mutes the B channel outgoing audio and sets the B channel validity bit to 1.
When in 1 channel mode, any unmitigated A channel error mutes the A channel
outgoing audio and sets the A channel validity bit to 1. The B channel validity bit is
always set to 0.