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Automatic Sound Levelizer

Discussion in 'Gen 3 Prius Audio and Electronics' started by MikeDee, Jan 8, 2014.

  1. MikeDee

    MikeDee Senior Member

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    Vehicle:
    2017 Prius Prime
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    Prime Plus
    From a 2007 manual:

    AUTOMATIC SOUND LEVELIZER (ASL) (Type 1 and Type 2 only)
    When the audio sound becomes difficult to be heard due to road noise, wind noise, etc. during driving, the system adjusts to the optimum volume and tone quality ac- cording to the noise level.
    Vehicles with compact disc changer: Touch the “ASL” switch.
    When the system is on, the sound adjust- ment level is displayed on the screen.
    Vehicles without compact disc changer:
    Touch the “DSP” switch to display the “ASL” screen.
    Touch “High”, “Mid” or “Low” and then “OK”.
    When you touch “High”, you can obtain higher sensitivity of the sound levelizer. When you touch “Low”, the sensitivity will be lowered.
    Touching “Off” turns the system off.

    I've used the sound levelizer in my 2013 Prius 2, and I can't tell if this feature is working. I have to adjust the sound system when the road noise increases and decrease it when coming to a stop. It doesn't seem to make much difference what setting it is on. I have it set to "High" now. Anyone else have this issue?
     
    #1 MikeDee, Jan 8, 2014
  2. bisco

    bisco cookie crumbler

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    my 04 had it, i never thought it worked at all, never mind well.
     
    #2 bisco, Jan 8, 2014
  3. CU2MIKE

    CU2MIKE Junior Member

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    Mine is set on high as well, it gets louder (not by much) when I hop on the freeway.
     
    #3 CU2MIKE, Jan 11, 2014
  4. jdcollins5

    jdcollins5 Senior Member

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    There have been many threads on this subject if you want to search. The general thought was that it did not work very well.
     
    #4 jdcollins5, Jan 11, 2014
  5. Tropicseed

    Tropicseed New Member

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    Three
    We bought a 2013 Prius Three recently, and after experimenting with the auto levelizer, I cannot tell any difference no matter what setting I use, or even leaving it off. I always have to fiddle with the volume as I drive. My '99 Audi A4 had a similar control which worked really well, so this fake feature on the Prius is doubly annoying.

    patrick
     
    #5 Tropicseed, Feb 21, 2014
  6. mediahound

    mediahound Active Member

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    I also cannot tell if it does anything so turned it off. I figure the less processing of the audio, the cleaner the sound.
     
    #6 mediahound, Feb 21, 2014
  7. whatever

    whatever Junior Member

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    Vehicle:
    2018 Prius Prime
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    Plug-in Base
    my 2010 prius sound system quit ,wont work I have blue logic I can play Iheart though my phone but no radio even change it didn't work Help Please
     
    #7 whatever, Jun 26, 2015
  8. bisco

    bisco cookie crumbler

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    fuse?
     
    #8 bisco, Jun 26, 2015
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