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Discussion Groups | Audio Signal Processing
Technical discussions related to Audio Signal Processing (digital effects, acoustics, noise reduction, musical signal processing, etc).
Decent FFT code
Cuetek - Dec 24 2009
I'm building a guitar toy and I need an FFT for a dsPIC33 series processor and the Microchip C30 library FFT does not work. (Seriously, whoda thunk?) Being on the lazy side wrt cod... 
comparaison of 2 audio signals and calculation of filter
roma...@yahoo.fr - Dec 22 2009
Hi everyone,
For a linguistics experiment, I have loudspeakers playing sounds in a room and they are directed towards a wall, which acts as a low pass filter when you hear the s... Re: Re: How do I "flip" the frequencies of a sound file? What I mean is...
Jeff Brower - Dec 16 2009
Possimpable-
> Well I have Audacity and Goldwave, and I haven't found such a feature to apply these equations
The equation is simple:
y[n] = x1[n]*(-1)^n
1) Make a .wa... How do I "flip" the frequencies of a sound file? What I mean is... [2 Articles]
possimpable - Dec 16 2009
I want to take a sound file, and geometrically flip every frequency around,=
say, A (440Hz). So A# becomes Ab, B becomes G, C becomes Gb... To basicall=
y flip the frequency sca... Re: How do I "flip" the frequencies of a sound file? What I mean is...
Jeff Brower - Dec 16 2009
Possimpable-
> Okay, but am I supposed to know what program to plug this
> equation into? I already know the concept, I'm asking about
> the execution.
You're kidding m... Re: How do I "flip" the frequencies of a sound file? What I mean is...
Jeff Brower - Dec 16 2009
Possimpable-
> I want to take a sound file, and geometrically flip every frequency
> around, say, A (440Hz). So A# becomes Ab, B becomes G, C becomes
> Gb... To basically f... What is the difference between active and passive noise control?
rraj...@gmail.com - Dec 10 2009
What is the difference between active and passive noise control?
... Writing an audio fader - basic question
rela...@hotmail.co.uk - Dec 9 2009
Hi,
I'm in the process of adding an audio fader to my application, and I just wanted to check if I've got the basic principle right. I assume that all that is actually required ... FFT anaylisis of recorder (flute)
José_Tomás_Tocino_García - Dec 8 2009
Hi. I'm developing a musical game in which the player will have to play the
recorder. So far I've used FFT to analyse the sound input but I get a lot of
peaks, and notes like C o... Difference between original sound and microphone recorded sound [2 Articles]
kali...@gmail.com - Dec 7 2009
Hi,
I was wondering if anyone can formalize the difference between a played audio buffer and the same audio buffer, played from a speaker and captured by a microphone.
For ex...