Re: [LAD] Portable user interfaces for LV2 plugins

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To: <linux-audio-dev@...>
Date: Thursday, March 3, 2011 - 2:33 am

On Wednesday, March 02, 2011 09:15:32 pm Fons Adriaensen did opine:

> On Thu, Mar 03, 2011 at 12:17:40AM +0100, Stefano D'Angelo wrote:

I beg to disagree with the premise that the waveform is useless. I have
had a scope probe in one hand for 60 years now, and there is nothing that
comes close to finding that slightly edgy sound that just isn't quite right
like a good look at the waveform when you have a known test signal.
Clipping is easier to see, crossover distortion is easily seen by the
trained eye, and even slew rate limits can be made to stand out plain as
day.

Note however that I am not referring to a digitized waveform which has its
own set of problems unless the sampling frequency is 100's of times faster
than the signal being sampled, I am referring to the raw analog signal
itself. Digitize crap,and you still have crap even if the digital sample
is quite high and the A-D is totally monotonic. Consumer stuff rarely is
either wide range linear, nor monotonic beyond 13 or 14 bits in a 16 bit
system. Even 24 bit stuff probably falls face first in its oatmeal at 20
good bits.

Yes, you can see the results of all those distortions by doing an FFT on
the digital signal, but unless one is intimately familiar with the FFT
display, it can't tell you the real problem is crossover related so you
only guess, or find someone who can tell you whats wrong, and chances are,
he will use an analog scope to find and point it out.

--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)

667:
The neighbor of the beast.
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Messages in current thread:
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Jörn Nettingsmeier, (Sat Feb 26, 10:37 am)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Fri Feb 25, 7:09 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Fri Feb 25, 7:14 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Fri Feb 25, 7:29 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Fri Feb 25, 8:21 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Fri Feb 25, 8:26 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Fri Feb 25, 8:09 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Fri Mar 11, 11:08 am)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Fri Mar 18, 5:06 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Fri Mar 18, 11:44 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Thu Mar 24, 10:10 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Sun Mar 27, 4:08 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Fri Mar 11, 6:40 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Sat Feb 26, 4:33 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Sat Feb 26, 6:25 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Sat Feb 26, 6:32 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Mon Feb 28, 4:24 pm)
[LAD] Lightweight LV2 implementation (Was: RDF libraries), David Robillard, (Thu Sep 29, 5:48 am)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Sat Feb 26, 5:28 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Sat Feb 26, 6:19 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Giuseppe Zompatori, (Sun Feb 27, 4:04 am)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Giuseppe Zompatori, (Sun Feb 27, 12:55 pm)
Re: [LAD] Audio effects on Android, Olivier Guilyardi, (Mon Feb 28, 5:03 pm)
Re: [LAD] Audio effects on Android, Stefano D'Angelo, (Tue Mar 1, 12:53 pm)
Re: [LAD] Audio effects on Android, Olivier Guilyardi, (Tue Mar 1, 4:21 pm)
Re: [LAD] Audio effects on Android, Stefano D'Angelo, (Wed Mar 2, 7:18 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Sat Feb 26, 7:10 pm)
Re: [LAD] RDF libraries, was Re: [ANN] IR: LV2 Convolution R..., Olivier Guilyardi, (Sat Feb 26, 6:44 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Mon Feb 28, 8:51 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Tue Mar 1, 12:00 am)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Tue Mar 1, 6:36 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Tue Mar 1, 11:24 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Wed Mar 2, 1:20 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Wed Mar 2, 5:34 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Wed Mar 2, 6:31 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Wed Mar 2, 7:17 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Wed Mar 2, 7:55 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Wed Mar 2, 9:27 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Wed Mar 2, 10:45 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Wed Mar 2, 9:15 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Wed Mar 2, 10:44 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Wed Mar 2, 10:00 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Wed Mar 2, 11:14 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Paul Davis, (Wed Mar 2, 11:17 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Fons Adriaensen, (Wed Mar 2, 10:49 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Thu Mar 3, 10:36 am)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Thu Mar 3, 12:39 am)
Re: [LAD] Portable user interfaces for LV2 plugins, Fons Adriaensen, (Thu Mar 3, 1:27 am)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Fri Mar 4, 12:53 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Fri Mar 4, 7:40 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Pedro Alves, (Fri Mar 4, 9:45 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Sat Mar 5, 12:05 am)
Re: [LAD] Portable user interfaces for LV2 plugins, Paul Davis, (Fri Mar 4, 10:00 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Pedro Alves, (Fri Mar 4, 10:56 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Sat Mar 5, 12:07 am)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Fri Mar 4, 2:25 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Fri Mar 4, 7:53 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Sat Mar 5, 12:10 am)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Fri Mar 4, 2:40 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Fri Mar 4, 3:00 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Fons Adriaensen, (Fri Mar 4, 2:14 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Fri Mar 4, 2:17 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Wed Mar 2, 11:17 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Fons Adriaensen, (Thu Mar 3, 12:03 am)
Re: [LAD] Portable user interfaces for LV2 plugins, gene heskett, (Thu Mar 3, 2:33 am)
Re: [LAD] Portable user interfaces for LV2 plugins, Fons Adriaensen, (Thu Mar 3, 11:15 am)
Re: [LAD] Portable user interfaces for LV2 plugins, gene heskett, (Fri Mar 4, 3:06 am)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Wed Mar 2, 10:46 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Paul Davis, (Wed Mar 2, 8:08 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Wed Mar 2, 10:36 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Thu Mar 3, 12:06 am)
Re: [LAD] Portable user interfaces for LV2 plugins, Paul Davis, (Wed Mar 2, 10:58 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Wed Mar 2, 11:14 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Wed Mar 2, 9:38 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Paul Giblock, (Wed Mar 2, 10:16 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Wed Mar 2, 10:49 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Paul Giblock, (Wed Mar 2, 11:02 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Thu Mar 3, 12:27 am)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Thu Mar 3, 10:05 am)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Fri Mar 4, 12:06 am)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Fri Mar 4, 12:43 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Fri Mar 4, 7:28 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Wed Mar 2, 11:20 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Gabriel M. Beddingfield, (Wed Mar 2, 11:09 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Chris Cannam, (Wed Mar 2, 8:44 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Paul Davis, (Wed Mar 2, 8:47 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Paul Davis, (Wed Mar 2, 1:27 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Wed Mar 2, 2:11 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Wed Mar 2, 2:30 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Fri Mar 11, 11:03 am)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Wed Mar 2, 4:58 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Wed Mar 2, 5:25 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Paul Davis, (Wed Mar 2, 5:29 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Wed Mar 2, 7:15 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Wed Mar 2, 6:03 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Wed Mar 2, 3:58 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Wed Mar 2, 4:57 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Tue Mar 1, 1:13 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Tue Mar 1, 3:47 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Mon Feb 28, 9:37 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Olivier Guilyardi, (Tue Mar 1, 5:53 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Tue Mar 1, 5:55 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, Stefano D'Angelo, (Tue Mar 1, 6:01 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Tue Mar 1, 10:43 pm)
Re: [LAD] Portable user interfaces for LV2 plugins, David Robillard, (Tue Mar 1, 12:02 am)