Sony HT-A9 Help Manual page 117

Help Guide
Home Theatre System
HT-A9
The sound is interrupted while watching a TV program or content on a Blu-ray Disc,
etc.
Check the sound mode setting. If the sound mode is set to [Auto Sound], the sound may be interrupted when the
sound mode is changed automatically according to the information of the program that is being played. If you do not
want to change the sound mode automatically, set the sound mode to a setting other than [Auto Sound].
Related Topic
Setting the Sound Effect That Is Tailored to Sound Sources (Sound Mode)
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