Re: [Audacity-devel] Better EQ curves
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From: Stevethefiddle <ste...@gm...> - 2010-03-16 19:25:30
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I've written up a proposal on the Audacity wiki: http://wiki.audacityteam.org/wiki/Proposal_Import/Export_Eq_Curves Steve Martyn Shaw-2 [via Audacity] wrote: > > > On 12/03/2010 17:10, Stevethefiddle wrote: > > > > It looks good and it works. > > Thanks. > > > I'm not an expert in RIAA, but is it really worth going down to > > 20Hz/19.274dB when the "audio" at 20Hz is likely to just be > turntable rumble > > and disk warp? Wasn't the RIAA standard updated/enhanced with a > curve in > > which the very low frequency boost dropped lower? > > Will respond to Richard on that. > > > Martyn Shaw-2 wrote: > >> > >> Would there be any objection to reducing the number of built-in curves > >> to just the ones that can be validated, whilst making others available > >> on-line for pasting into EQCurves.xml as required? We could > >> add/improve 'Telephone' and '100Hz Rumble Filter' that I see Steve and > >> Koz have 'out there' at the same time. > >> > >> Feedback/ideas? > >> > > > > I would personally be in favour of reducing the number of RIAA type > curves > > that are included by default and adding a few "general purpose" > settings. > > Have a few settings such as "bass boost/bass cut/treble boost/treble > > cut/telephone/loudness/rumble filter" would not only be useful to a > wider > > audience but would in my opinion have "educational value" for people > that > > are new to audio processing. > > That sounds good to me. We wouldn't want the full '1/3rd octave' freq > points for these as it would be an inconvenience to the user. Do you > have particular curves in mind? Examples? Break points? > > To do this well would mean including freq/dB pairs in the code for > each curve, something we don't do at the moment but should be within > reach. We should be able to turn xml versions into code (with a > little effort) that then gets output as the default xml file. > > > Koz and myself have also put forward the idea of a simple user > interface for > > importing/exporting curve data. I don't think that anyone has taken > up this > > idea yet, but even if there was just simple buttons to "Export This > > Curve"/"Import Curve" (and any invalid XML files just rejected with > an error > > message) it would tie in well with your suggestion. There is a brief > mention > > of this idea http://wiki.audacityteam.org/wiki/Feature_Requests > > A quick glance doesn't find that on that page. Do you want to work up > a fuller version somewhere? It seems like a good idea and I would > like users to be able to exchange curves easily like this. > > TTFN > Martyn > > > Steve -- View this message in context: http://n2.nabble.com/Better-EQ-curves-tp4719919p4745867.html Sent from the audacity-devel mailing list archive at Nabble.com. |