[MPlayer-users] [BUGREPORT] Crash when REAL used with any -aop options

[D Richard Felker III]

On Mon, Oct 25, 2004 at 02:19:10AM -0400, The Wanderer wrote:
> D Richard Felker III wrote:
> 
> >On Sun, Oct 24, 2004 at 03:23:34PM -0400, The Wanderer wrote:
> >
> >>soft-clipping parameter doesn't seem to be documented either).
> >>Either of these could be adjusted to with a little effort, but I do
> >>think I find the percentage interface more intuitive.)
> >
> >but no audiophile would find it intuitive... in fact adjusting volume
> >in percentage makes no sense because the rate at which the volume
> >changes will depend on the current volume level. +- 1 dB is always
> >the same change no matter where you start, +- 1% (of original volume)
> >is not.
> 
> That makes sense, yes, and I knew that there are perfectly good reasons
> for using decibels rather than percentages (although if memory serves,
> which it may not, the decibel notation allows for less fine-grained
> control... because -af volume=20 gives me volume comparable to if not
> higher than -aop list=volume:volume=200, although admittedly it's

20 dB = 10^(20/10) = 100x intensity
200% volume = 2x intensity

btw af_volume's dB->intensity conversion is hopelessly broken right
now so it's coming out all wrong :(

rich