low volume level on OTA HDTV DD5.1 broadcast

Discussion in 'AV Receivers' started by tonyKwok, Apr 7, 2005.

  1. tonyKwok

    tonyKwok Stunt Coordinator

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    hi everyone

    I wonder if anyone here can give me any insight on my situation. I am using a TOSLINK cable from my TV out to my Denon 1905 receiver. When I'm watching OTA HDTV shows that are broadcasting in DD5.1, I have to crank the volume on my Denon way up in order to hear anything decent. I'm usually listening to these shows (ie. LOST, 24, etc) at -15db. I did a test and switched over to an analog station at the same volume level and the sound was much louder. When I'm watching DVDs (using digital coaxial), the sound is pretty loud at -20db. When i'm playing my XBOx (TOSLINK), my volume only needs to be at about -30db and it's already loud. I'm not concern about the volume level of DVDs and the XBOX, just from OTA HDTV broadcast.

    Am I doing something wrong w/ my setup? Is anyone else experiencing this? any help would be appreciated.

    thanks
     
  2. JeremyErwin

    JeremyErwin Producer

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    It might have something to with dynamic range compression. Also, check to see that your TV is outputting a dolby digital signal, and not merely PCM.
    What's the model of your television?
     
  3. tonyKwok

    tonyKwok Stunt Coordinator

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    I have a Sony KDF-50WE655 w/ a Denon AVR-1905. I'm pretty sure it's outputting DD5.1 to my receiver because I have the Denon set to Auto for audio source and whenever a show is in DD5.1, the LCD display on the receiver shows Dolby Digital.
     
  4. Steve Schaffer

    Steve Schaffer Producer

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    Is there any variation between any of the ota HD stations when broadcasting in 5.1? I get several stations broadcasting in 5.1, both OTA and off my DirecTV dish and the volume level varies significantly among them.

    I get ABC in HD from both my local affilliate here in Fresno and from KABC in LA via the dish. My local station's 5.1 is noticeably louder that the LA station's, but the LA station has more bass and better channel separation.
     
  5. tonyKwok

    tonyKwok Stunt Coordinator

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    Actually, I noticed the HD broadcast of CSI on CBS (2.1) in Los Angeles was significantly louder than the other shows I was watching (LOST & 24). It guess it must be dependent of the shows?

    tony
     
  6. Patrick Sun

    Patrick Sun Studio Mogul

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    It's a YMMV thing. For me, only the local CBS affiliate's OTA HD feed has normal sounding audio levels, the other affiliates lower the programming audio, but the commercials are quite louder than the programming. It's cheesy.
     
  7. tonyKwok

    tonyKwok Stunt Coordinator

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    Patrick Sun

    yes, I also noticed that the commercial are way louder than the actual show, so i'm constantly lowering the volume whenever a commercial comes on. I guess this is consider a type of "interactive TV" [​IMG]
     

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