Subject: Re: [linux-audio-dev] 3D fft analysis program
From: Andres Cabrera (acabrera_AT_teleset.com.co)
Date: Wed Oct 13 2004 - 14:26:24 EEST
Hi all,
I'm wondering if there would be a benefit implementing the Loris
analysis library (http://www.cerlsoundgroup.org/Loris/) additionally to
the usual fft techniques for a visual spectrum analyzer. Would there be
visual differences in both analysis that would be worth while?
Cheers,
Andrés
Andres Cabrera wrote:
> Dave,
> Thanks, I hadn't seen the 3d spectrogram in snd. It does pretty much
what I wanted to do. So I'll refocus and try to get it working in
realtime first. It will probably take longer (because I have no idea
about jack and the like), but I'll get it started.
> Thanks for all the suggestions and the pointers from everyone, when
I've made some progress I'll post.
> Cheers,
> Andrés
>
> Dave Phillips wrote:
>
>> Downer wrote:
>>
>>>> I'm hoping that you're thinking of a realtime display, in which the
>>>> peaks roll off to create a true waterfall effect.
>>>>
>>>
>>>
>>>
>>>
>>> Baudline (http://www.baudline.com) is a fantastic viewer that does
fft cascade. I've used it for a couple of years, and it is great for
figuring out how different sounds "work", and it has an
oscilloscope-type display as well.
>>>
>>>
>> Alas, whle baudline is indeed a wonderful application it doesn't do
a true waterfall display. Please see the results on Google for 'alan
peevers spectrogram' for more info regarding what I'm looking for.
>>
>> Btw, there's a way to set Cthugha to do this, and I believe it might
be possible with Pd. Snd creates a nice OpenGL FFT display but it's not
realtime.
>>
>> Best,
>>
>> dp
>>
>>
>>
>
>
>
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