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Channel status data table, Passing the status bytes – Cobalt Digital COMPASS 9216-OE-DM AES_EBU Fiber Audio De-Embedder User Manual

Page 48

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5-4

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Specifications

9216-OE-DM User Manual

••••

(V 1.1)

Channel Status Data Table

The following table shows the channel status bit information that is used for all output audio.

Table 5.2 Channel Status Data

Byte

Bit

Function

Transmitted

0

Professional or Consumer use of Channel Status
Block

Professional (1)

1

Normal Audio or Non-Audio Mode

Normal Audio (0)

2-4

Emphasis

No Emphasis (100)

5

Lock Indication

Locked (0)

0

6-7

Sampling Rate

48kHz (01)

0-3

Channel Mode

2 channel stereo (0001)

1

4-7

User Bit Mode

192-bit (0001)

0-2

Auxiliary Bit Usage

20-bit audio sample, Aux bits undefined (000)

3-5

Sample Word Length

20- or 24-bits (101)

2

6-7

Alignment Level

Not Indicated (00)

3

0-7

Multi-channel Modes

Undefined (0)

0-1

Digital Audio Reference Signal

Not a Reference (0)

2

Reserved

0

3-6

Sampling Frequency

Not Indicated (0000)

4

7

Sampling Frequency Scaling Flag

No Scaling (0)

5

0-7

Reserved

Unused (0)

6-9

ASCII Source ID

Unused (0)

10-13

ASCII Destination ID

Unused (0)

14-17

Local Sample Address

Unused (0)

18-21

Time of Day

Unused (0)

22

0-7

C data reliability

Only the first 5 Status Bytes are marked as Reliable. All
other Status Bytes are marked as Unreliable.

23

0-7

CRC

Calculated CRC

Passing the Status Bytes

The 9216-OE-DM replaces Channel Status Bytes according to Table 5.2 or passes Status Bytes
through from input to output. In order for the Channel Status Bytes on the incoming embedded stream
to be re-embedded, the outgoing Data Word Length must match the specified word length in the
Channel Status bits.