Re: [Audacity-devel] Normalize effect extended

[Richard A. <ri...@au...>]

On Sat, 2006-04-08 at 13:30 -0700, Vaughan Johnson wrote:
> I think those are excellent suggestions, Martyn, and should be the spec. 
> I should even have time to implement it fairly soon.
> 
> My one question is about the 2 radio buttons. If -3dB isn't all that 
> practically useful, as I found in my usage, & it's likely to just 
> confuse beginners, I think we should just do away with it. Then, as 
> Markus noted, we don't really need a dialog at all, just give the menu 
> command to Normalize and it removes DC offset & adjusts the peak to 0dB.
> 
> So, is anybody using the -3dB on a regular basis?
No, I would be happy for Normalise to be a "one-shot" solution (for the
benefit of users who want a quick solution) with the rest of the
functionality in the amplify dialogue.

Can I ask that the DC offset removal should remember the fact that I've
turned it off - I never use it because I'm coming from good source
files, and it would annoy me to have to disable it every time I used
amplify. I don't mind it defaulting on first time, as most people can
just ignore it.

Richard

> Mar...@ao... wrote:
> > Hi
> >  
> > I agree with what's being said here, Normalize as a 'fast' or 'beginners'  
> > effect and Amplify as a fully functioned effect.  I also see a lot of  cheap 
> > onboard sound cards with ridiculous dc offsets and many people (I'm  talking 
> > about my students, particularly) don't understand the consequences  of this and so 
> > ignore it (leading to clicks when mixing).
> >  
> > I propose that in Normalize there is dc removal but it is totally hidden  and 
> > uncontrollable by the user - they just get it.  Also, keep the 'sticky'  
> > settings for max amplitude but just have 2 radio buttons for
> > 'max volume' (set to 0dB) (default) and
> > 'mixing level' (set to -3dB)
> > this would give beginners a sensibly usable effect with default settings  and 
> > those wishing to mix tracks a usable level for many cases.  If they are  
> > mixing many tracks together, they become a 'power user' and have to use  Amplify.
> >  
> > Amplify would then:
> > Have a (default on) dc removal.
> > Have the same slider for +-24dB gain for 'simple' use - obeying the 'Allow  
> > clipping' box by not allowing you to push the slider up too far if it's not  
> > checked (currently the OK button is disabled, but it's not that obvious), or  
> > going red if it is.
> > Work similarly for settings in the 'Amplification (dB)' box.
> > Allow attenuation greater than -24dB to be put in the 'Amplification  (dB)' 
> > box, and using it (not a silently ignoring '-50' like it does  now).
> > Obey the 'New Peak Amplitude (dB)' box (not leave a greyed out OK and a  
> > non-updated Amplification box (but as above re the 'Allow clipping' box)).
> > Do what it says in the 'Amplification (dB)' box, not apply a max of 24dB  
> > amplification - currently with a signal at -48 dB the box says it will give 48dB  
> > gain but only actually applies 24dB.
> > Have a 'sticky' New Peak Amplitude (dB) level, rather than the current  
> > calculated gain to give 0dB peak amplitude.
> > Allow further enhancements in the future.
> >  
> > Any use?
> > Martyn
> >   
> >
> 
> 
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