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Old 01-20-2014, 10:25 AM
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Source volume normalization?

In the 8.4AN, the radio and the iPod USB media input have markedly different volume output levels for the same volume set level. If I have the radio on at an appropriate volume and then inadvertently press the "Media" button, then I am condemned to having the iPod audio thundering through my speakers a few seconds later.

Is there any practical way to prevent this from happening? As it stands, I must try to remember to turn the volume far down before switching to the Media input and then increase the volume back to a comfortable level. If I press the Media button before turning the volume down, then nothing can save me from an auditory assault (the volume knob doesn't function during the system's input switching lag).

For example, my TV has volume offsets for different input sources so that I can have my DVD player's audio set at a lower volume level than my gaming console. The result is that the perceived output level in the room stays the same when I switch inputs. Is there anything like that on the Jeep?

Just to reiterate: the iPod is connected via USB, not AUX. I have confirmed that the volume number is the same when playing back via both inputs, but the output level is dramatically different.
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Old 01-20-2014, 10:32 AM
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Re: Source volume normalization?

Unfortunately I have not found a way to normalize the sound. I have just accepted that this is just the way it is as the Acura I traded for the Jeep did it and the Subaru we will have does the same thing.
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Old 01-26-2014, 07:31 PM
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Re: Source volume normalization?

I go back and forth the between Radio (FM) and USB (stick) all the time and don't see a huge level change.

What format files are you playing? I'm playing MP3's
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Old 01-26-2014, 08:14 PM
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Quote:
Originally Posted by mswlogo View Post
I go back and forth the between Radio (FM) and USB (stick) all the time and don't see a huge level change.

What format files are you playing? I'm playing MP3's
I'm playing MP3's via USB connected iPod.

I wasn't exaggerating the volume difference, either. It has caused me to literally jump in my seat, and to be concerned about blowing the speakers.

On my 8.4AN, playing normal volume on SXM then hitting Media over to iPod will output a higher volume than can be achieved at 100% volume on SXM. As I noted before, the volume number level is the same for both inputs; it's the output volume that varies drastically.
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