Sony Ipela PCS-XG55 Integration Manual page 53

To set up audio input and echo canceller
m . PCSA-A7 microphone can not be used for PCS-XG55 main unit.
. For PCS-XG55 main unit, AUDIO 1 IN connector is not equipped and AUDIO 2 IN con-
nector is named to AUDIO IN connector.
When using a PCS-A1, PCSA-A3, or PCSA-A7 microphone and inputting them through a microphone
mixer to the AUDIO 1 IN or AUDIO 2 IN input connectors, set "Setup → Audio 1 → Audio Input" to
"MIC". The echo canceller will be enabled, when "Echo Canceller" setting is "On".
When inputting the audio output from external equipment like a DVD player to the AUDIO 1 IN or
AUDIO 2 IN input connectors, set "Setup → Audio 1 → Audio Input" to "AUX".
The echo canceller is not enabled. Menu setting is done by "Setup → Audio 1 → Audio Input".
In the above example, the output from the external microphone is adjusted to the line level through the mixer
and then input to AUDIO 1 IN, and AUDIO 1 IN is used as "MIC". In this case, the echo canceller is enabled.
Above shows that AUDIO 1 IN is used as AUX and (even if "Echo Canceller" setting is "On"), but Echo
Canceller dose not work.
When audio input is used as AUX, this signal does not go through the echo canceller block.
If "Audio Input" is "AUX", you cannot set "Echo Canceller" fi eld.
In this case, the input level will be the line level.
PCS-XG80
When "Audio Input" is set to "AUX"
The setting made in this column
has no effect, regardless of whether
"Echo canceller" is set to "On" or "Off."
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