Rockbox Development > Feature Ideas

Adjusting Volume via ambient noise on players with a mic

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billy1ear:
Though it would be nice to have the volume auto adjust based on ambient noise.
Say your in your car with the windows down and the volume goes up when your going 70, then goes down when you stop at an intersection.

ZincAlloy:
excellent. automatic destruction of your hearing ability. :-\  it would make much more sense to automatically turn down the volume when the ambience noise gets louder.

Llorean:
Another interesting question: How will the player hear the ambient noise over the loud music after the volume goes up? Even if you know what's playing it doesn't necessarily mean there will be enough recoverable other audio for it to really be able to determine anything.

pabouk:
I already presented this ideal long time ago (it was probably on the tracker) and I think that it is usable with headphones. What I do most frequently while listening to a DAP on a street / bus / tram / underground is changing the volume according to the ambient noise. To avoid hearing damage there could be simple volume limit.

The main problem I see is how to filter out the contact noise of the microphone and close objects (clothes etc.)

nomis3613:
Excellent idea for headphone listening! I'd love to see this on Rockbox to allow further laziness on my behalf. Whether the hardware has enough brains to process this while doing decoding music etc, I dunno, but it's a great idea.

It may be possible to reduce contact noise etc by looking at a certain frequency range and using averages of over say 10 seconds. Might work, might not.

I reckon with control over 1) the maximum decrease in volume 2) the max increase in volume and 3) the ratio of volume change to background noise change (ie so you could set it to add 0.7 dB for every dB of background noise) it'd be awesome.

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