I would like to write a program that can calibrate my home theater, or at least the FR & FL channels for the time being. I have done some signal proc work, mainly on images, never on audio input. I'm looking for a few pointers to help me get started.
Can anyone give quick intro on what I'm looking for in a wave to play? It I generate a wav in matlab it (looking at it as a plot) seems to need to be postive to negative in the Y axis with time in the X axis.
How do I convert a wav to a more tradional responsivity graph?
In the end I would like to look at the systems SNR and how flat the responsivity on the system is. From there I will see what interests me. I'm going to purchase an inexpensive mic to look at this initially, from there I will at my results. Also, I want to keep the code simple so I'm going to do it in Matlab at least for starters.
bump - someone has to know a little bit about this. I just need a few pointers to be able to code my ideas. Ideas can be a terrible thing :rolleyes:
complex subject, lots of info on web hard to judge what is relevant to you
may be a starting place for sw already developed for the task
(from massive thread http://www.diyaudio.com/forums/showt...078&highlight= )
possibly helpful freeware:
many more sw tools exist in the general area of pc sound card based audio measurement
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