[linux-audio-user] professional audio measurement with linux???
sonicx_ at gmx.net
Fri Oct 14 10:46:54 EDT 2005
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
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.
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