Mxz’ stereo to mono down mix for a zone, Drz’ non-pcm digital audio routing, Audio control – Zektor Palladia™ 8X8 User Manual

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HDA800(V2) Serial Protocol, Version 1.3, 9/12/13

63

Audio Control

^EQ1Z @1,+6

->

Boost EQ band’s level on zone 1 by 3.0dB

^EQ1Z @3,-9

->

Cut EQ band’s level on zone 3 by 4.5dB

When using the ‘+’ and ‘-’ prefixes to add or subtract from current levels, the ‘EQxZ’ commands will
not allow you to go above 168 (+20.0dB) or below 88 (-20.0dB), though it’s perfectly valid to send a
command that would attempt this.

‘MXZ’ Stereo to Mono Down Mix for a Zone

Stereo audio can be mix in a number of different ways. This includes swapping channels, and a number
of ways of creating mono audio.

Command format:

^MXZ @

zone,@zone,mix

Set the stereo mix down of a zone or zones.

Response Strings:

^=MXZ @

zone,mix$

Where:

@

zone

= One (or more) zones to be affected.

mix

= Stereo mix down flag.
0 = No change to audio.
1 = Swap left and right channels.
2 = Mix to mono by adding left and right channels.
3 = Mix to mono by using the left channel for both outputs.
4 = Mix to mono by using the right channel for both outputs.
5 = Mix to mono by subtracting the right channel from the left.
6 = Mix to mono by subtracting the left channel from the right.

‘DRZ’ Non-PCM Digital audio Routing

The HDA800(V2) cannot mix down non-PCM audio, this is any non-PCM stereo audio bitstream, and
includes Dolby5.1, DTS Audio, and all other types of multichannel audio.

Any time non-PCM audio is detected on a digital input, the analog audio inputs are routed to the ana-
log outputs.

This command allows you to decide what data to send to the digital coax output when surround sound
audio (non-PCM audio) is detected on a digital input.

You can choose to send the surround sound audio as is, this assumes you have a receiver that can
decode surround sound audio, or you can choose to ignore the surround sound audio and instead, con-
vert the analog audio to digital (PCM audio) and send it out the digital output.

This command also doubles as the source selection command when running the switch in the “Classic”
mode. In the classic mode no auto-detection is done, and this command is used to select between ana-
log and digital audio sources, for each of the Coax outputs.

Command format:

^DRZ @

zone,@zone,routing

Set the non-PCM routing option.

Response Strings:

^=DRZ @

zone,routing$

Where:

@

zone

= One (or more) zones to be affected.

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