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uk.tech.digital-tv (Digital TV - General) (uk.tech.digital-tv) Discussion of all matters technical in origin related to the reception of digital television transmissions, be they via satellite, terrestrial or cable. Advertising is forbidden, with no exceptions.

Audio return channel

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Old June 24th 17, 07:12 AM posted to uk.tech.digital-tv
Jeff Layman[_2_]
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Posts: 723
Default Audio return channel

I have a Panasonic TX-55CX680B TV and Onkyo AV TX-SR252 receiver
connected via HDMI.

If I change the TV's volume with its remote control with the AV receiver
off, the on-screen display shows "Volume" with a sliding scale and
volume level number which changes, increasing or decreasing as the sound
level increases or decreases.

If I have the AV receiver on, and use its remote control to change its
volume, the AV receiver volume level number similarly increases or
decreases on its built-in display. However, nothing shows on the TV
display to signify the volume has changed.

However, if I use the TV's remote control to change the TV's volume with
the AV receiver on, the TV displays "Home cinema volume" with an arrow
pointing towards + or - (depending on whether I am increasing or
decreasing the volume), but no number appears on the TV screen to
indicate what the volume level is. Strangely, though, the AV receiver
display also changes and displays a number which changes with the volume

Any idea if the "Home cinema volume" OSD wording which appears when ARC
is operating is generated by the TV when it senses ARC or is it
generated by the AV receiver? There is no mention of this wording in the
Onkyo manual or Panasonic manual, although the latter somewhat
ambiguously states "The displayed item may vary depending on the
connected equipment."

What do others see with OSD volume level changes with their TVs and AV



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