Automatic Volume Control
Team Owner
Joined: Sep 2000
Posts: 24,988
Likes: 2,691
From: Far NW 'burbs of Chicago
St. Jude Donor '13
Mine (Nav system, built 2-06) works but it is subtle, not the obvious steps like in my C5. There was another thread about this, some of the posters could hear the increase when traveling on a noisy surface.
What counts is that even though I don't notice the system working, I seldom need to adjust the volume as speed increases or decreases.
What counts is that even though I don't notice the system working, I seldom need to adjust the volume as speed increases or decreases.
Last edited by Gearhead Jim; Jun 7, 2006 at 11:29 AM.
Cruising
Joined: Jan 2005
Posts: 14
Likes: 0
Bozomatic volume control
My '05 Bose (no nav) volume control does nothing that is perceptible at all. Switching the system from AVC to non AVC while on the road produces zero change. I had the dealer replace the mike in winter. After it did nothing he said that it only works when the top is down. When summer came I found that he was wrong.... the feature is a zero value zero effect one.... which is unfortunate because the vehicle could surely use a functioning AVC..... It may make the engineers at Bose happy but it %#@* me off to no end. Can't wait to change my exhaust system so I can't hear the radio anymore. Then it won't bother me at all.
Le Mans Master
Joined: Aug 2005
Posts: 6,709
Likes: 1
From: Pacific Northwest
St. Jude Donor '06
Originally Posted by calemasters
The Bose Audio System I have (6 disc changer, no NAV) does not have speed compensated volume. Is has the Bose Audio Pilot. Bose Audio Pilot does not increase the volume noticeably. What it does do is very subtle. It adjust the equalization to compensate for cabin noise. As my friend at Bose put it, "If you can hear the change, it ain't workin right." The point is, unlike SCV contol, the Audio Pilot works without a obvious change.
Just FYI, there is no functional test for the Audio Pilot.
It is like the light in the refrigerator, when you close the door, it goes out, you just can't see that it goes out!
Just FYI, there is no functional test for the Audio Pilot.
It is like the light in the refrigerator, when you close the door, it goes out, you just can't see that it goes out!
Only GM in conjunction with Bose could come up with that one!
Thread Starter
Burning Brakes
Joined: Jan 2005
Posts: 1,154
Likes: 1
From: Las Vegas NV
Originally Posted by agrumpyguy
If you do a search,many previous threads about this.Never worked with nav units,never will
Instructor
Joined: Nov 2004
Posts: 114
Likes: 0
From: Bismarck North Dakota
If you can't hear the change - what good is it?
[QUOTE=calemasters]The Bose Audio System I have (6 disc changer, no NAV) does not have speed compensated volume. Is has the Bose Audio Pilot. Bose Audio Pilot does not increase the volume noticeably. What it does do is very subtle. It adjust the equalization to compensate for cabin noise. As my friend at Bose put it, "If you can hear the change, it ain't workin right." The point is, unlike SCV contol, the Audio Pilot works without a obvious change.QUOTE]
That is ridiculous! If it doesn't change the volume so that you can comfortably hear it, what good is it? It's worthless!
That is ridiculous! If it doesn't change the volume so that you can comfortably hear it, what good is it? It's worthless!
Le Mans Master
Joined: Jan 2005
Posts: 5,611
Likes: 5
From: Thousand Oaks California
Originally Posted by bradb
Cool.
That means mine is working because I can't tell it is working.
I might try that with the girlfriend.
Her: "Hey, I thought you were gonna mow the yard?"
Me: "Just because you didn't SEE me mow the yard or SEE the grass being any shorter isn't the issue. I'm using Bose technology to mow the yard."
Her: "What have you been smoking?"
Me: "Honey, it is high tech stuff. Bose Labs has shown that just because you can't see or hear something doesn't mean it isn't working."
Her on phone: "Mom, is my room still empty?"
That means mine is working because I can't tell it is working.
I might try that with the girlfriend.
Her: "Hey, I thought you were gonna mow the yard?"
Me: "Just because you didn't SEE me mow the yard or SEE the grass being any shorter isn't the issue. I'm using Bose technology to mow the yard."
Her: "What have you been smoking?"
Me: "Honey, it is high tech stuff. Bose Labs has shown that just because you can't see or hear something doesn't mean it isn't working."
Her on phone: "Mom, is my room still empty?"
Burning Brakes
Joined: Sep 2005
Posts: 980
Likes: 0
From: Raleigh NC
06 3LT w/ Nav and an 05 build date...
I think mine does work, but it's not usually a very noticable change... I thought about getting it looked at, but when I saw most people seem to have trouble with it I figured all the dealership would be doing is experamenting on my car, so I opted not to care.
I think mine does work, but it's not usually a very noticable change... I thought about getting it looked at, but when I saw most people seem to have trouble with it I figured all the dealership would be doing is experamenting on my car, so I opted not to care.
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Le Mans Master
Joined: Dec 2005
Posts: 7,753
Likes: 210
From: North Western Connecticut
Originally Posted by Monts
At first, I didn't think mine was working either. I do notice subtle changes in volume, but if I say, roll down the windows, it will not compensate enough.
In this respect, and this respect only, my C5 was better.
In this respect, and this respect only, my C5 was better.
I have Nav it's the same. I pump up the volume and leave it there most of the time. Trying to get your dealer to fix this one simply isn't worth it IMO. To many other things they could mess up.....
Instructor
Joined: Oct 2005
Posts: 194
Likes: 0
From: Camas WA
I know mine is working...whenever I drive over grooved pavement with the windows down I hear the volume go up. Just about every other time I hear no change. I'm guessing the threshhold for the system to adjust is too high...but it definitely isn't as good a system as the speed based system on my Tahoe...
Racer
Joined: Apr 2005
Posts: 364
Likes: 0
From: Schertz TX
I have noticed very subtle changes in volume when the top iis up. But when the top is down, no volume increase that I can tell. Dealer said that it measures within the parameters??What ever that is suppose to mean??
The other day, my wife and I were driving around town and slowed down from 40 to 20 and the volume increased ?? This was unusual. It went so high that I had to manually turn it down. The dealer just said he could not find anything wrong and could not reproduce it. That cost me 45 miles on the Car. Hum! Guess I just need to get an amp and a good sound system to compensate so I can hear it with the top down.
The other day, my wife and I were driving around town and slowed down from 40 to 20 and the volume increased ?? This was unusual. It went so high that I had to manually turn it down. The dealer just said he could not find anything wrong and could not reproduce it. That cost me 45 miles on the Car. Hum! Guess I just need to get an amp and a good sound system to compensate so I can hear it with the top down.
Melting Slicks
Joined: Mar 2006
Posts: 2,255
Likes: 3
From: Sugar Hill Georgia
No Nav here, if it's working, it's working very poorly. With the top down at a stop the volume fades away as I accelerate and noise increases, to the point you can't hear the radio any more.
No difference if off/on. Not worth it to let a dealer touch it.
No difference if off/on. Not worth it to let a dealer touch it.
Burning Brakes
Joined: Aug 2005
Posts: 967
Likes: 1
From: / California
Here's a weird one for you guys. My auto volume control as far as I could tell has never worked. I have the NAV radio. This bothered me at first but then I forgot all about it.
Just the other day as I was driving along, I notice the volume level kept going up and down. It was as if I was turning the volume **** up very slowly. After about the third time this happened, I remember thinking, "what's up with that station, the volume keeps changing". Then it occurred to me that it might be the Auto volume so I checked and sure enough, it was turned on. For a test, I switched it off and the volume level stopped changing.
I have no idea why after all these months, the dang thing started working. I left it switched off because I really didn't like the volume going up and down on it own.
Just the other day as I was driving along, I notice the volume level kept going up and down. It was as if I was turning the volume **** up very slowly. After about the third time this happened, I remember thinking, "what's up with that station, the volume keeps changing". Then it occurred to me that it might be the Auto volume so I checked and sure enough, it was turned on. For a test, I switched it off and the volume level stopped changing.
I have no idea why after all these months, the dang thing started working. I left it switched off because I really didn't like the volume going up and down on it own.
Race Director
Joined: Oct 2004
Posts: 10,089
Likes: 13
Originally Posted by calemasters
The Bose Audio System I have (6 disc changer, no NAV) does not have speed compensated volume. Is has the Bose Audio Pilot. Bose Audio Pilot does not increase the volume noticeably. What it does do is very subtle. It adjust the equalization to compensate for cabin noise. As my friend at Bose put it, "If you can hear the change, it ain't workin right." The point is, unlike SCV contol, the Audio Pilot works without a obvious change. It IS NOT volume control.
Just FYI, there is no functional test for the Audio Pilot.
It is like the light in the refrigerator, when you close the door, it goes out, you just can't see that it goes out!
Just FYI, there is no functional test for the Audio Pilot.
It is like the light in the refrigerator, when you close the door, it goes out, you just can't see that it goes out!
When I still had the Blose amp in my car, that's exactly what it did, parked and engine off. But with the engine running, the volume increase is already maxed due to engine noise, and doesn't seem to change any further. That indicates to me it is set too sensitive rather than not sensitive enough. So when you're actually driving, it appears to do nothing.
We had the same problem with the Bose in the 350Z. The guys over there came up with a fix of sorts. They soldered a resistor in parallel with the Bose microphone, which loaded it down and reduced its sensitivity. That put the active volume compensation range into the noise range you're in while driving. It still didn't work very well, but at least you could tell it was doing something when driving.
If you have OnStar, this won't work for you, since the same microphone is used for OnStar, and padding down the mic would result in your voice level being attenuated too.
