Am 15.10.2012 22:53, schrieb Alex Parker:
On 15/10/12 21:48, Thomas Martitz wrote:
I don't think we should turn it on by default.
a) It imposes quite a CPU load on affected files, since it requires more
DSP processing (in contrast to just replay gain).
Well according to Torne it is essentially free
(http://forums.rockbox.org/index.php/topic,38781.msg207084.html#msg207084)
So who is right?
He's probably right, since he looked at the code more recently. In my
memory didn't use tags but dsp-processed the songs but I may be wrong. I
also didn't know about these tags.
b) Also, I think it may alter the sound (even if it only affects volume)
too much in certain cases. Especially on albums the songs may become
unequally load (because the clipping protection turns down some songs
more than others).
If we are going to not alter sound at all by default shouldn't we not
turn on replaygain by default? And if we are going to turn on
replaygain by default on the assumption that if people have tagged
their files they want to use it that they will want to use all the
capabilities?
I said "alter too much", e.g. the case where the loudness of an album
becomes irregular.
I have replay gain tags because I want to use replay gain. I want a
similar loudness throughout my music, and I'm not worried about clipping
(I never heard it with my music). So I specifically don't want to use
all capabilities.
And clipping prevention is not without problems. A whole song might get
drastically turned down because of a single spike. That would be hugely
unpleasant for me.
c) People (including me) may prefer to risk some slight clipping over
unequal loudness throughout albums, especially since it comes with a
battery life cost. But then I haven't really heard clipping in my
collection. Anyway, I have turned it off and would explicitly do this if
it becomes default.
Not an argument for or against, just a personal preference.
Sure. Most defaults are a result of personal preference (most often the
personal preference of the majority). And it's my personal preference to
keep the default at off.
I would think the guy in the forum is in a minority. Sure, we don't have
numbers but I follow the reasoning of Dominik.
Best regards.
