Re: [LAU] JACK (or LADSPA or LV2) spectrum analyzer?

On 04/07/2010 01:30 AM, Brent Busby wrote: you can stick your speaker on a pole in the garden (i.e. well away from reflecting surfaces) and measure it with a sweep, or pink noise, if you must. that will tell you the frequency response of your speaker. in actual practice, that isn't worth much. what's more interesting is a) weird modes at your listening position, which you can and should measure "in situ", and b) the decay characteristics of your listening room - check out some waterfall diagrams on the web to see what i mean. incidentally, here is one: http://stackingdwarves.net/public_stuff/linux_audio/tmt08/Ambisonic_Listeni… - created with (gasp!) wavelab in a hurry - is there a free tool that does them? if a specific frequency is annoying, it can be for three reasons: it's too loud to begin with, you ears are in a modal maximum (where a standing wave between two walls has maximum particle velocity), or your room has a very long reverb time in that frequency which sticks out from the rest of the reverb. best, jörn