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#1
Posted to rec.audio.tech
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Yamaha RX-V750 + OTA television signal = volume fluctuation
I got a Yamaha RX-V750 7.1 AV receiver this past weekend. I have it
configured for 5.1 surround sound and use an over-the-air television antenna for viewing local programming (no cable). The audio signal I receive from NBC fluctuates significantly, this occurs in programs as well as commercials. An example would be while watching the local news the volume will be at a normal listening level throughout the entire news cast but when the station goes to commercial the sound level drops to a far less audible level for some of the commercials, not all. When the news resumes the sound level returns to normal. It is not limited to commercials only. It drops the sound level for certain programs such as The Tonight Show. When I try to watch The Tonight Show I turn the volume up to a normal listening level but the sound has a muffled quality to it. I do not have this problem with the other national networks. Although I have noticed some distinct sound variations on other networks such as background sound is somewhat diminished during some programming as well as commercials, but certainly not as pronounced as NBC. I had a Sony 5.1 AV receiver but replaced it with the Yamaha but I did not have this sound trouble with the Sony. Am I missing something in the setup of the receiver? I've followed the setup guide to balance the speakers using the microphone. I'm using optical cable to connect the television to the receiver. Has anyone else run into this problem? Thank you for any help or advice you might have. |
#2
Posted to rec.audio.tech
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Yamaha RX-V750 + OTA television signal = volume fluctuation
Sounds like a bunch of knob-monkeys at the TV stations having trouble implementing the CALM act.
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#4
Posted to rec.audio.tech
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Yamaha RX-V750 + OTA television signal = volume fluctuation
I lost patience and purchased another Sony. Problem solved. Thank you for
your thoughts though. "whosbest54" wrote in message ... In article , says... I got a Yamaha RX-V750 7.1 AV receiver this past weekend. I have it configured for 5.1 surround sound and use an over-the-air television antenna for viewing local programming (no cable). The audio signal I receive from NBC fluctuates significantly, this occurs in programs as well as commercials. An example would be while watching the local news the volume will be at a normal listening level throughout the entire news cast but when the station goes to commercial the sound level drops to a far less audible level for some of the commercials, not all. When the news resumes the sound level returns to normal. It is not limited to commercials only. It drops the sound level for certain programs such as The Tonight Show. When I try to watch The Tonight Show I turn the volume up to a normal listening level but the sound has a muffled quality to it. I do not have this problem with the other national networks. Although I have noticed some distinct sound variations on other networks such as background sound is somewhat diminished during some programming as well as commercials, but certainly not as pronounced as NBC. I had a Sony 5.1 AV receiver but replaced it with the Yamaha but I did not have this sound trouble with the Sony. Am I missing something in the setup of the receiver? I've followed the setup guide to balance the speakers using the microphone. I'm using optical cable to connect the television to the receiver. Has anyone else run into this problem? Thank you for any help or advice you might have. How did you have the Sony hooked up to the TV? The same way with an optical digital cable or did you use the analog out? If it was the same, then there seems to be something strange going on with the Yamaha. It could be a problem with the Dolby Digital audio as broadcast by the station given the other stations don't have as pronounced a problem. But one would think others would have the same problem and tell the station. whosbest54 -- The flamewars are over...if you want it. Unofficial rec.audio.opinion Usenet Group Brief User Guide: http://whosbest54.netau.net/rao.htm Unofficial rec.music.beatles Usenet Group Brief User Guide: http://whosbest54.netau.net/rmb.html |
#5
Posted to rec.audio.tech
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Yamaha RX-V750 + OTA television signal = volume fluctuation
In article ,
"djh" wrote: I got a Yamaha RX-V750 7.1 AV receiver this past weekend. I have it configured for 5.1 surround sound and use an over-the-air television antenna for viewing local programming (no cable). The audio signal I receive from NBC fluctuates significantly, this occurs in programs as well as commercials. An example would be while watching the local news the volume will be at a normal listening level throughout the entire news cast but when the station goes to commercial the sound level drops to a far less audible level for some of the commercials, not all. When the news resumes the sound level returns to normal. It is not limited to commercials only. It drops the sound level for certain programs such as The Tonight Show. When I try to watch The Tonight Show I turn the volume up to a normal listening level but the sound has a muffled quality to it. I do not have this problem with the other national networks. Although I have noticed some distinct sound variations on other networks such as background sound is somewhat diminished during some programming as well as commercials, but certainly not as pronounced as NBC. I had a Sony 5.1 AV receiver but replaced it with the Yamaha but I did not have this sound trouble with the Sony. Am I missing something in the setup of the receiver? I've followed the setup guide to balance the speakers using the microphone. I'm using optical cable to connect the television to the receiver. Has anyone else run into this problem? Thank you for any help or advice you might have. It sounds like Dolby Dialnorm problems with AC-3 decoding. It's a headroom adjusting hack designed accommodate low and high dynamic range programs. A perfect receiver will not fix the problem. Many TV stations don't pass through the correct Dialnorm value. Even when they are, it's probably wrong from the program too. The Tonight Show with Jay Leno is an excellent example of how Dialnorm should not be used. It uses a high dynamic range profile but it's recorded with a very compressed dynamic range. In a feeble attempt to create a "live" atmosphere, people mixing the sound crank up the volume for a moment when they notice that the crowd is reacting. -- I will not see posts from Google because I must filter them as spam |
#6
Posted to rec.audio.tech
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Yamaha RX-V750 + OTA television signal = volume fluctuation
"Kevin McMurtrie" wrote in message ... In article , "djh" wrote: I got a Yamaha RX-V750 7.1 AV receiver this past weekend. I have it configured for 5.1 surround sound and use an over-the-air television antenna for viewing local programming (no cable). The audio signal I receive from NBC fluctuates significantly, this occurs in programs as well as commercials. An example would be while watching the local news the volume will be at a normal listening level throughout the entire news cast but when the station goes to commercial the sound level drops to a far less audible level for some of the commercials, not all. When the news resumes the sound level returns to normal. It is not limited to commercials only. It drops the sound level for certain programs such as The Tonight Show. When I try to watch The Tonight Show I turn the volume up to a normal listening level but the sound has a muffled quality to it. I do not have this problem with the other national networks. Although I have noticed some distinct sound variations on other networks such as background sound is somewhat diminished during some programming as well as commercials, but certainly not as pronounced as NBC. I had a Sony 5.1 AV receiver but replaced it with the Yamaha but I did not have this sound trouble with the Sony. Am I missing something in the setup of the receiver? I've followed the setup guide to balance the speakers using the microphone. I'm using optical cable to connect the television to the receiver. Has anyone else run into this problem? Thank you for any help or advice you might have. It sounds like Dolby Dialnorm problems with AC-3 decoding. It's a headroom adjusting hack designed accommodate low and high dynamic range programs. A perfect receiver will not fix the problem. Many TV stations don't pass through the correct Dialnorm value. Even when they are, it's probably wrong from the program too. The Tonight Show with Jay Leno is an excellent example of how Dialnorm should not be used. It uses a high dynamic range profile but it's recorded with a very compressed dynamic range. In a feeble attempt to create a "live" atmosphere, people mixing the sound crank up the volume for a moment when they notice that the crowd is reacting. -- I will not see posts from Google because I must filter them as spam Thank you for pointing dialnorm out to me. I found a post at hometheaterforum.com that described my predicament precisely. My thanks to Michael Reuben for his insight. "The theory behind dialnorm is to allow DD signals to be adjusted so that dialogue is always at a constant level when switching among soundtracks. The dialnorm setting achieves this by instructing the decoder to raise (or lower) the overall volume by a set amount. The feature would be useful in things like TV broadcasts, where it could be applied to maintain a constant volume across different channels -- if only it were used correctly. But it almost never is. For example, I receive one cable channel that has a dialnorm setting of 0 DBFS, because some idiot in the broadcast chain obviously thinks that's a "neutral" setting, when in fact it drops the DD volume by 31db (27 more than a typical DVD), which makes it almost inaudible." Again, thank you for your time and pointing out this answer for me. |
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