Synchronizing Audio And Video - Lip Sync Function; Reducing Echo - Echo Canceler - Sony PCS-1 Operating Instructions Manual

Synchronizing Audio and Video – Lip Sync Function
During the conference a time lag may occur between the sound and picture to
be sent to the remote party.
When you set "Lip Sync" to "On" in the Audio Setup menu, the system adjusts
to synchronize audio and video. However, this may delay transmission of
audio synchronized with video.
For the Lip Sync setting, see "Audio Setup Menu" on page 46.
Note
To enable the Lip Sync function of the remote party, you have to ask them to do so.
Reducing Echo – Echo Canceler
The Communication Terminal is equipped with the Echo Canceler, allowing
the echo that occurs during audio transmission to be reduced.
Setting "Echo Canceler" to "Internal" in the Audio Setup menu activates the
built-in echo canceler. If you set it to "External", you can activate the eco
canceler of the equipment connected to the system.
For the "Echo Canceler" setting, see "Audio Setup Menu" on page 46.
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Adjusting the Sound