Rockbox mail archiveSubject: Re: Battery life as related to output volume
Re: Battery life as related to output volume
From: David Litchman <Davel23_at_rcn.com>
Date: Sun, 14 Mar 2004 12:14:43 -0500
At 06:06 PM 3/14/2004 +0100, you wrote:
> > Obviously, playing a louder signal requires more power to be drained. Has
> > anyone done any research into how it affects Archos battery life?
>Headphones need only little power to punch your eardrums, the difference is
>not significant. I measured 77 mA with zero volume, 80 mA at full blast (you
>would not want to have wear that), with a low-impedance headphone (sortof the
> > I use my
> > unit almost exclusively in my car, and I could turn the Archos volume way
> > down and use the car's amp to turn up the volume, but I currently try to
> > keep the Archos at the same volume as when I switch over to the
> > radio. Prevents heart-attacks.:)
>I recommend setting the volume to 93, this is 0dB and gives an unaltered 1:1
>signal, no attenution, no amplification. Use less if you have to, but you
>lose SNR (Signal to Noise Ratio).
Ok, cool, thanks!
Received on 2004-03-14