Re: [Audacity-devel] Reassigned spectrograms

[Paul L. <pau...@gm...>]

On Tue, Aug 18, 2015 at 6:56 PM, James Crook <cr...@in...> wrote:

> On 18/08/2015 22:54, Paul Licameli wrote:
>
>
>
> On Tue, Aug 18, 2015 at 5:37 PM, James Crook <cr...@in...> wrote:
>
>> On 18/08/2015 18:50, Steve the Fiddle wrote:
>> > On 18 August 2015 at 16:50, James Crook < <cr...@in...>
>> cr...@in...> wrote:
>>
>> ----
>> 1: Waveform
>> 2: Waveform (dB)
>> 3: Spectrogram
>> 4: Spectrogram (refined)   <-- I think this is better wording than the
>> technically correct '(reassigned)'.
>> 5: Pitch (EAC)
>>
>
> So for waveforms, the two scale types; for spectra, the three algorithms
> instead of (as in the past) the scale types.  Scale types not specified
> above.
>
> AND 3 user defined viewing styles.
>
> Scale types not specified above, and so can be changed by user for that
> style, as can window size etc.
>
> I might decide that my 6 is:
>
> 6: Short-Range Spectrum
>
> And use a small window for it.
>
>
>
>> ----
>>
>> Which are 5 configured 'viewing styles'  We have also user defined
>> styles 6, 7 and 8 which will only show if the user gives them a name.
>>
>> We can only configure these 8 Viewing Styles from the standard
>> preferences dialog.  We can, for example, use a different window size on
>> Pitch than on Spectrogram.  Paul's per track detailed configuration goes.
>>
>> In Preferences Dialog, Waveform and Spectrograms no longer appear under
>> Tracks, instead they appear under a new entry "Viewing Styles".  This
>> has all eight entries.  Each can be configured and the last three can be
>> given names.  The predefined ones grey out some controls, such as the
>> ability to change the name and the algorithm.  This means the predefined
>> styles will continue to be where they should be and do what they say
>> they do.
>>
>>
>> I think this should give enough flexibility and be much better than what
>> we currently have in audmain/master.  Implementing it introduces some
>> schedule risk, so I want to check that there is (now) consensus that
>> this is what we should do.
>>
>>
>> --James.
>>
>
> These are strange ideas I don't fully understand and I fear it is rather
> late to code this...
>
> It IS late to code it.
>
> Waveforms and spectra are very different animals.
>
> Yes.  And perhaps in time Pitch, reassigned spectrogram and ordinary
> spectrogram will diverge further too.
>

But those three are very alike in being affected by window size and
function.  I think zero padding might apply to the Pitch algorithm too, I
have to think about it.  And then there are the other exotic algorithms now
in Plot Spectrum only.  One might ask, if Enhanced Autocorrelation can be
done both there and in display, then why not the others too?


>
> There would need to be waveform styles, for saving combinations of one set
> of settings, and spectogram styles for a different set of settings.  I
> don't see how you would have one preference page with all eight settings.
>
> You'd have one preference page for each style 1..8, making 8 pages, in the
> tree for them,
> and one page listing the names of the 8 styles and the algorithm (which
> would now also include the option of 'Waveform' as an algorithm).  The
> algorithm then determines what page/fields show when you click on that
> style in preferences tree.
>
>

> Clearer?
>

Okay, yes.  One needs a page to present the settings, but there is a major
top-level choice determining what fields are in that page.  I have assumed
this top choice is binary.  You think it should be four or five-way (and if
I am right about other spectral algorithms, even more-way).

Nothing would prevent more than one style choosing the same algorithm but
then choosing other details for that algorithm, so the page layout for that
algorithm could be reused.

All too futurey for 2.1.2.  The crisis now is the unpopular decisions I
made, and what parts of my project I should retract.  Please see the other
thread I recently started.  In short, let's keep the familiar Waveform and
Waveform dB, but then simplify the rest of the drop-down to Spectrogram and
Spectrogram Settings...

PRL


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