Question about Yamaha RX-V620 Receiver

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Sound goes up from tv show to commercial

When watching primarily HD programs the sound will often times increase dramatically when the commercial comes on. I need to turn it down then turn up the sound once the program resumes. I have checked the steady sound setting on the tv and it is set to off. Is there some setting in the effects mode that I need to turn off or on? Any advise on how to resolve this or suggestions on what to try to fix this very annoying problem would be greatly appreciated.

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Re: sound goes up from tv show to commercial

There are two reasons for this. Firstly, the commercial channels are deliberately boosting the volume during commercial breaks to grab your attention. Secondly, the commercials use compressed audio (narrow dynamic range). This often comes across much louder than program material, which is using a wider dynamic range on which you would have based your volume setting. It is noticeable that the BBC are also sending out wide variations in volume at present - Yes it is VERY annoying. Some sort of ALC (automatic level control) is required but this would need to be switchable. Hope this helps.

Posted on Dec 10, 2007

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