MTV commercial tried to murder my system

mdaudioguymdaudioguy Posts: 4,545
Last night, something so strange happened for which I have no explanation. My wife and I had just finished dinner and the family room system was on, with ESPN News on the TV, and audio going through my receiver and Def Tech 5.1 satellite speakers. I had gone upstairs to continue working on a home improvement project, when suddenly I hear a massive volume increase with significant distortion! And I mean massive, as if the system was cranked to full volume. My first thought was she had grabbed the remote and the volume up button had somehow stuck and she was probably freaked out and struggling to turn it down. I dropped what I was doing and raced downstairs, and realized that no one had even been in the room! She had actually stepped outside and was coming back in wondering what was going on.

By the time I located the remote and turned the volume all the way down, the system had been screaming for a good 30 seconds, and I also realized that the volume itself had not been turned up beyond our normal TV listening level! It turned out that these highly distorted, extremely loud sounds were associated with a commercial for a show on MTV. I verified this by keeping the volume very low and rewinding the DVR. The volume was normal both before and after this super hot commercial.

I know broadcasters tend to increase the volume of commercials (annoying as heck), but this was far beyond that, so something else must have occurred in this instance. This advertisement's audio was so hot and distorted, I was genuinely concerned for my speakers. Anybody ever have a similar occurrence or know a plausible explanation?
7.1 - polk RTi10 x 3 (LCR) : FXi3 x 2 : RTi4 x 4 : Sunfire SDS-12 : Yamaha Aventage RX-A2040 : Adcom GFA-7500 : Squeezebox Touch : DIRECTV : Roku SE : Panasonic PT-AX200U PJ @ 120"
5.1 - Definitive Technology ProMonitor 800 x 4 : ProCenter 1000 : Klipsch Sub-10 : Pioneer Elite SC-91: DIRECTV : LG OLED55B6P : Roku Premiere+
Garage Duty - polk Monitor 10s : Pioneer A-717 Integrated Amp : Squeezebox Classic

Comments

  • polrbehrpolrbehr Posts: 2,114
    edited July 9
    u1k9cbjubt9p.png

    This ^^^^ was my first thought :), I can't believe a broadcast signal could crank up the volume like that. All I get is my Denon switching inputs on its own, annoying but pretty harmless!
    So, are you willing to put forth a little effort or are you happy sitting in your skeptical poo pile?


    http://audiomilitia.proboards.com/
  • mhardy6647mhardy6647 Posts: 18,771
    or perhaps the Police -- very MTV-friendly.

    oz0ehlyu5e6q.png

    Wait, what? There's still an MTV?!


    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • mdaudioguymdaudioguy Posts: 4,545
    It's an 80s flashback! Ghostbusters, The Police... maybe my DirecTV dish picked up a rogue Soviet signal that had been sent to disrupt a US space mission in '84, but was eventually reflected back to Earth?? :p
    7.1 - polk RTi10 x 3 (LCR) : FXi3 x 2 : RTi4 x 4 : Sunfire SDS-12 : Yamaha Aventage RX-A2040 : Adcom GFA-7500 : Squeezebox Touch : DIRECTV : Roku SE : Panasonic PT-AX200U PJ @ 120"
    5.1 - Definitive Technology ProMonitor 800 x 4 : ProCenter 1000 : Klipsch Sub-10 : Pioneer Elite SC-91: DIRECTV : LG OLED55B6P : Roku Premiere+
    Garage Duty - polk Monitor 10s : Pioneer A-717 Integrated Amp : Squeezebox Classic
  • decaldecal Posts: 3,066
    I had a Sony reciever that started increasing the volume on it's on. It wasn't worth repairing so I never knew what was wrong with it. I suspect it had something to do with the remote control circuit.
    If you can't hear a difference, don't waste your money.
  • mlistens03mlistens03 Posts: 1,889
    decal wrote: »
    I had a Sony reciever that started increasing the volume on it's on. It wasn't worth repairing so I never knew what was wrong with it. I suspect it had something to do with the remote control circuit.

    My receiver turns the volume down, I always thought it was annoying but now I realize that I’m glad not to have the alternative.
    Not Tom, or Trey, or Jim
    Main setup:
    Speakers are one of three, Mission Freedom 770 IV’s, Polk LSi25’s, or Polk SDA-CRS (stock XO, SL2000’s, Blade/Blade model). Electronics are as follows: for the LSi’s and SDA’s, a Technics SU-v75 acting as a phono preamp, into a Yamaha RX-v665, into a Crown XLi800 power amplifier. For the Missions, I have a Lafayette LR-1100. Turntable is a Technics SL-3200, with a Shure M97xE. Cables are generic/soon to be replaced garbage.
    An old post I found on AK, from 2013.
    I've always thought the goal of high end audio was not to have your neighbors bang on the wall and say, 'Turn that darn music down' but to have your neighbors bang on the wall and say, 'Tell your friends to go home and you can practice later this week'.
  • EmlynEmlyn Posts: 2,105
    My guess is it was an anomaly (or ghosts). On cable channels there are two feeds for commercials, one national and one local. That's why one may see the same commercial back to back on some cable channels. It is normal for some local oriented commercials to be slightly louder than regular programming, but not by much. Sounds like they had a system control glitch when they switched between sources. Maybe there is a dynamic range control on the receiver for that input?
    1. Polk LSiM707, 704C, 703; Dual SVS SB2000 subwoofers; Marantz SR7011 receiver; Parasound A23 amp; Oppo 205; Toshiba HD-DVD Player; Sony 65" 4K TV; FIOS; PS Audio Power Plant Premier; MIT S2 cables
    2. JM Labs Electra 920.1; Parasound JC2 Preamp; Sonic Frontiers Power 2 amp; Sony HAP-Z1ES; Oppo 105D; Music Hall MMF7 and Acoustech phono pre; PS Audio P1000; MIT S1 Cables
    3. Polk LSiM703; Pioneer Elite SC97 receiver; Oppo 203; Squeezebox Touch; MIT S3 cables
  • harleyjoonharleyjoon Posts: 1
    Mine too! Happened on different channels, but all the commercials appeared to be MTV shows. Thinking about filing a complaint with the FCC, since MTV won't give me any feedback. https://transition.fcc.gov/cgb/consumerfacts/backgroundnoise.pdf
  • mlistens03mlistens03 Posts: 1,889
    harleyjoon wrote: »
    Mine too! Happened on different channels, but all the commercials appeared to be MTV shows. Thinking about filing a complaint with the FCC, since MTV won't give me any feedback. https://transition.fcc.gov/cgb/consumerfacts/backgroundnoise.pdf

    We have another witness! Now we’ve got a case on our hands. Who/what done it? :tongue:
    Also, welcome to the forum Harleyjoon!
    Not Tom, or Trey, or Jim
    Main setup:
    Speakers are one of three, Mission Freedom 770 IV’s, Polk LSi25’s, or Polk SDA-CRS (stock XO, SL2000’s, Blade/Blade model). Electronics are as follows: for the LSi’s and SDA’s, a Technics SU-v75 acting as a phono preamp, into a Yamaha RX-v665, into a Crown XLi800 power amplifier. For the Missions, I have a Lafayette LR-1100. Turntable is a Technics SL-3200, with a Shure M97xE. Cables are generic/soon to be replaced garbage.
    An old post I found on AK, from 2013.
    I've always thought the goal of high end audio was not to have your neighbors bang on the wall and say, 'Turn that darn music down' but to have your neighbors bang on the wall and say, 'Tell your friends to go home and you can practice later this week'.
  • msgmsg Posts: 4,268
    Woh, I've never heard of commercials being that much louder than programming, but yikes!

    Apparently this has been a thing with the FCC for years, and they've been trying to regulate it.

    On similar grounds, I notice that some programming seems to involve my sub more than others, and in programming that it shouldn't according to my settings. It seems like it's ignoring my crossover point (70Hz). The Weather Channel broadcasts, for example. My sub is a lot more active with speaking voices, and I can't figure out why. It's not this way with other programming, or films.
  • Airplay355Airplay355 Posts: 4,248
    I’ve noticed louder commercials only when streaming from an app as opposed to usuing cable. Even then they aren’t that significantly louder. What are you guys using as sources? I’ve got a roku ultra
  • mdaudioguymdaudioguy Posts: 4,545
    To reiterate, this wasn't the receiver increasing the volume - this was a super-hot, distorted audio signal associated with only 1 commercial. Wish I would have kept the DVR recording.
    7.1 - polk RTi10 x 3 (LCR) : FXi3 x 2 : RTi4 x 4 : Sunfire SDS-12 : Yamaha Aventage RX-A2040 : Adcom GFA-7500 : Squeezebox Touch : DIRECTV : Roku SE : Panasonic PT-AX200U PJ @ 120"
    5.1 - Definitive Technology ProMonitor 800 x 4 : ProCenter 1000 : Klipsch Sub-10 : Pioneer Elite SC-91: DIRECTV : LG OLED55B6P : Roku Premiere+
    Garage Duty - polk Monitor 10s : Pioneer A-717 Integrated Amp : Squeezebox Classic
  • mdaudioguymdaudioguy Posts: 4,545
    harleyjoon wrote: »
    Mine too! Happened on different channels, but all the commercials appeared to be MTV shows. Thinking about filing a complaint with the FCC, since MTV won't give me any feedback. https://transition.fcc.gov/cgb/consumerfacts/backgroundnoise.pdf

    This document is about a different issue - broadcasters boosting the volume of commercials slightly (sometimes a little more than slightly). Annoying, but we're not talking ear or equipment damaging possibilities, as I experienced.
    7.1 - polk RTi10 x 3 (LCR) : FXi3 x 2 : RTi4 x 4 : Sunfire SDS-12 : Yamaha Aventage RX-A2040 : Adcom GFA-7500 : Squeezebox Touch : DIRECTV : Roku SE : Panasonic PT-AX200U PJ @ 120"
    5.1 - Definitive Technology ProMonitor 800 x 4 : ProCenter 1000 : Klipsch Sub-10 : Pioneer Elite SC-91: DIRECTV : LG OLED55B6P : Roku Premiere+
    Garage Duty - polk Monitor 10s : Pioneer A-717 Integrated Amp : Squeezebox Classic
  • ClipdatClipdat Posts: 4,555
    I sincerely hope that none of your gear got damaged from this.
    Got Dayens?
  • polrbehrpolrbehr Posts: 2,114
    edited July 10
    Clipdat wrote: »
    I sincerely hope that none of your gear got damaged from this.

    Just what I was thinking, imagine the difficult time you'd have trying to prove an ad
    damaged your speakers?
    I wonder if there is a simple device that could attenuate a signal before it reaches your system? Like a filter maybe? Could be some money to be made if it worked reliably.
    So, are you willing to put forth a little effort or are you happy sitting in your skeptical poo pile?


    http://audiomilitia.proboards.com/
  • FestYboyFestYboy Posts: 2,660
    polrbehr wrote: »
    Clipdat wrote: »
    I sincerely hope that none of your gear got damaged from this.

    Just what I was thinking, imagine the difficult time you'd have trying to prove an ad
    damaged your speakers?
    I wonder if there is a simple device that could attenuate a signal before it reaches your system? Like a filter maybe? Could be some money to be made if it worked reliably.

    Limiters and gated compressors have been available for years. If set properly, they are seamless.
  • mdaudioguymdaudioguy Posts: 4,545
    Clipdat wrote: »
    I sincerely hope that none of your gear got damaged from this.

    All seems to be well. Seriously, I thought this was potentially damaging noise. Thankfully, this didn't happen when the volume was already cranked.
    7.1 - polk RTi10 x 3 (LCR) : FXi3 x 2 : RTi4 x 4 : Sunfire SDS-12 : Yamaha Aventage RX-A2040 : Adcom GFA-7500 : Squeezebox Touch : DIRECTV : Roku SE : Panasonic PT-AX200U PJ @ 120"
    5.1 - Definitive Technology ProMonitor 800 x 4 : ProCenter 1000 : Klipsch Sub-10 : Pioneer Elite SC-91: DIRECTV : LG OLED55B6P : Roku Premiere+
    Garage Duty - polk Monitor 10s : Pioneer A-717 Integrated Amp : Squeezebox Classic
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