[linux-audio-user] professional audio measurement with linux (?) -- a conclusion -and a minor problem with jack

[sonicx]

thank you,too some software ideas i already got. this would be using 
jaaa with jack.
compilation is a bit tricky but i  got it installed now - well it doesnt 
work,but its looks like it should =) so i guess my jack config is still 
faulty.thanks for the info mics - as with the opensource software i can 
now go and spend my money on a nice measurement microphone and then give 
them something for their nice proggi,if i get it to work =).  i guess i 
wont be able to afford a 900 bucks mic for a start but, i guess  500 
will me a must. as a sound card i use an audigy zs pl/pro,i know i 
know,a "windows-card" ,but as far as now i have made pretty good 
experience with it since latest alsa,much bang for the buck-of course id 
prefer the rme- but i guess so far my
questions have been answered: i will go with my soundcar,buy a nice 
mic,and use the opensource solution andrew suggested.

thank you 2 very much so far. i will no go on fighting my jackd,to get 
the jaaa running.btw i tried to compile it against my 64bit sys,the 
clbla libraries it needs too - maybe that is why it wont work yet,as jaa 
shows up in my qjackctl. but qjackctl still isnt able to set for example 
hw:0.4 to 8channel 96khz capture-which it should,and some similar 
nastyness when dealing with channels of hw:0.4 (the hd-device).maybe mr. 
gaydenko has some idea here to =).
mfg
       sonicx


Phil Mendelsohn wrote:

>>From: sonicx <sonicx_ at gmx.net>
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>>i was wondering if it is possible,and usuable, to make precise pressure
>>and frequency messurements using linux. ie. to test high-end speakers.i
>>somehow guess so,but what do i need? can i use my
>>mic+soundcard+alsa+somemeasurementproggi ?
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>This sort of measurement is as much of an art as a science; if I were you
>and wanted to get pretty serious about it, I'd look into measurement mics
>before I got too hung up on the software.  Earthworks M30BX is about $900,
>but there are some less expensive solutions.  A Shure SM-81, while not
>strictly a measurement mic, will work pretty well in lots of cases.  I
>haven't seen them used for much less that $400 lately. :(
>
>You want the measurement mic to be the best thing in the chain -- a good
>mic on a cheap soundcard is better than a great soundcard with a poor mic.
>
>As to software, I don't know about preset solutions -- sorry.  If you
>really want to get into it, fftw, gnuplot, and octave are all tools for
>rolling your own -- and it's a great way to really learn what you're
>doing.
>
>But be careful -- when your ears and your measurements disagree, go with
>your ears.
>
>Phil Mendelsohn
>(former mastering engineer, AES member, and audio boffin.)
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