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Re: [Kdenlive-devel] Questions about audio effects
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From: Hugh T. <hug...@gm...> - 2010-05-31 13:43:59
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Do you mean left/right stereo balance ? I don't think there's such an effect available in Sox or Ladspa... Would probably have to be done directly with MLT... 2010/5/31 wille <wil...@gm...> > By the way, I feel the need of a Balance audio effect or a similar tool. > > 2010/5/30 Hugh Tebby <hug...@gm...> > >> Hi everyone, >> >> I thought would look into the effects list in order to give more detailed >> information about the effects and maybe reorganize things a little, see what >> effects work, which ones don't etc. >> >> I went through all the SOX and LADSPA audio effects, and here are a few >> conclusions : >> - Many effects have either no effect or clearly don't work correctly >> - There are duplicates betwwen SOX, LADSPA and 'native' effects >> >> So here are a few questions : >> - If we remove the duplicate effects, which should be kept ? LADSPA or SOX >> ? >> - Should all effects that don't seem to work correctly be disabled ? >> Should the xml file actually be removed or put into a "not_working" folder ? >> >> Also, I can't quite understand how the Kdenlive interface connect to the >> effects. For the LADSPA, for instance, the Equalizer effect has three inputs >> (logain, midgain and higain), but the actual LADSPA effect (mbeq_1197) has >> 15 possible frequencies, and running 'analyseplugin mbeq_1197' gives me : >> >> Plugin Name: "Multiband EQ" >> Plugin Label: "mbeq" >> Plugin Unique ID: 1197 >> Maker: "Steve Harris <st...@pl...>" >> Copyright: "GPL" >> Must Run Real-Time: No >> Has activate() Function: Yes >> Has deativate() Function: No >> Has run_adding() Function: Yes >> Environment: Normal or Hard Real-Time >> Ports: "50Hz gain (low shelving)" input, control, -70 to 30, default 0 >> "100Hz gain" input, control, -70 to 30, default 0 >> "156Hz gain" input, control, -70 to 30, default 0 >> "220Hz gain" input, control, -70 to 30, default 0 >> "311Hz gain" input, control, -70 to 30, default 0 >> "440Hz gain" input, control, -70 to 30, default 0 >> "622Hz gain" input, control, -70 to 30, default 0 >> "880Hz gain" input, control, -70 to 30, default 0 >> "1250Hz gain" input, control, -70 to 30, default 0 >> "1750Hz gain" input, control, -70 to 30, default 0 >> "2500Hz gain" input, control, -70 to 30, default 0 >> "3500Hz gain" input, control, -70 to 30, default 0 >> "5000Hz gain" input, control, -70 to 30, default 0 >> "10000Hz gain" input, control, -70 to 30, default 0 >> "20000Hz gain" input, control, -70 to 30, default 0 >> "Input" input, audio >> "Output" output, audio >> "latency" output, control >> >> So I suppose the "logain", "midgain" and "higain" must be specified >> somewhere, but i can find no documentation about it. >> >> >> >> Cheers, >> Hugh >> >> >> >> >> ------------------------------------------------------------------------------ >> >> >> _______________________________________________ >> Kdenlive-devel mailing list >> Kde...@li... >> https://lists.sourceforge.net/lists/listinfo/kdenlive-devel >> >> > > > -- > Wille > http://wille.blog.br > > > ------------------------------------------------------------------------------ > > > _______________________________________________ > Kdenlive-devel mailing list > Kde...@li... > https://lists.sourceforge.net/lists/listinfo/kdenlive-devel > > |