[linux-audio-user] professional audio measurement with linux???

[sonicx]

thanks for your quick response! although my jack config still has some 
rough edges - this sounds like a good solution for me. right now jaaa 
has some probs compiling but ill try that one alone first =) - i guess 
theres just some libs to install.
thanks again!
       sonicx


Andrew Gaydenko wrote:

>I'm sure, 'jaaa' may be helpful here. I use it in my audio DIY-ing.
>Of course, you must use JACK (with 'qjackctl') to be able to run
>multiple jaaa instances + other JACK-ready apps. 
>
>'jaaa --help' doesn't show very useful parameter "name":
>
>jaaa -J -name jaaa1
>
>will run jaaa instance with "jaaa1" as JACK client name.
>
>LADSPA plugins has different oscillators, and here 'jack-rack' is
>usefull.
>
>P.S. Be careful with you tweaters when using white noise!
>
>
>Andrew
>======= On Friday 14 October 2005 18:46, sonicx wrote: =======
>hy,
>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 ? i am looking for an 
>inexpensive but precise solution to test the speakers i am planning to 
>build at home and without an oscilloscope or such equip which i could 
>never ever afford right at the start of production. i have a decent 
>machine with fine running sound support-i thought of maybe just pushing 
>some pink-noise (i just believe that this is what a "rosa-rauschen" is 
>called) to the speakers without any changes to that noise, while 
>recording it with a pretty good mic,centered right in front of the 
>speaker with 1m between. some tests outside and some in different rooms. 
>then i would take some kind of snd-like proggi to view the data and form 
>it (somehow) to a nice graph.well several nice graphs. but right now i 
>dont think that this method would give me any reliable results,as mic 
>amp and my sound-sys may of course have their one characteristica of 
>sound and so may make any speaker-only data unusuable. i hope someone 
>has some ideas for me,as i have _no_ plan whatsoever about "real" 
>measurement-cards in linux,or if i need one at all...some rough 
>directions please?
>
>as i dont know what a propiate software might be named i didnt even find 
>a hint. i though found some measurement cards and drivers for em-but i 
>couldnt even guess what to measure these would be for =). im willing to 
>try even the most complicated stuff,as long as it wont cost that much 
>bucks. and it would be nice if i could go on with my 2.4.9EL kernel-as 
>my realizm-drivers only work with this flavor.
>mfg
>       sonicx
>
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