[OT} Rogers: Very Loud Volumes for Commercials

[Colin McGregor]

On 8/13/09, Darryl Moore <darryl-90a536wCiRb3fQ9qLvQP4Q at public.gmane.org> wrote:
> I wonder if Myth could be configured to use this to identify the
> commercials, then automatically delete them.

Typically MythTV systems are configured so that they will detect
commercials via audio compression and the channel logo that appears
usually in the bottom left corner. When the compression levels go high
and the logo disspears you are typically talking a commercial. This
set-up isn't perfect I've seen comedy show parody commercials that
MythTV has mistaken for the real thing....

The above occasionsal false positive also explains why MythTV systems
typically by default don't auto delete commercials, merely notes them
and then by default skips commercials during playpack. This way for
the few times MythTV mistakes real programming for a commercial you
have the option of going back and telling MythTV to play everything...

Colin McGregor

> Jamon Camisso wrote:
>> On 13/08/2009 7:01 PM, Stephen wrote:
>>> I watch through a PVR and have just set up a home theater.
>>>
>>> The receiver volume has a numerical scale. I watch talk shows (ex Daily
>>> Show) at 60, then a commercial comes on, and I have to drop it to 45.
>>>
>>> It was never bad like this when I connected the PVR to the old TV via
>>> composites and RCA.
>>>
>>> I called Roger's tech support and they tried to blame it on the
>>> broadcaster, but I pointed out the worst case was when Roger's
>>> substitutes commercials on US programs. They agreed to send out a techie.
>>>
>>> Do others experience this?
>>>
>>> Can I do anything? Receiver is an ONKYO 606, if it makes a difference.
>>>
>>> All thoughts appreciated.
>>
>> My guess, you have equipment that can produce decent quality sound? See
>> http://www.crtc.gc.ca/eng/INFO_SHT/G3.htm for more on compression and
>> frequency tinkering used by advertisers.
>>
>> Jamon
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