Fourier

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{{ApplicationBox|
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Name=[[Fourier]]|
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Description=a realtime frequency analysis of recorded sound data and displays it on screen.|
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Screenshot=Fourier screenshot.png|
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Homepage=http://www.reitwiessner.de/openmoko/fourier.html|
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TestedOn=Om 2008.8,FSO MS 4|
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PackageName=fourier_1.1_arm.ipk
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}}
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download source:http://www.reitwiessner.de/openmoko/fourier-1.0.tar.gz
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==Introduction==
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[[Image:Fourier screenshot.png|150px|left]]
 
Fourier does a realtime frequency analysis of recorded sound data and displays it on screen.
 
Fourier does a realtime frequency analysis of recorded sound data and displays it on screen.
  
 
The sampling rate is 44100 and it uses 256 samples to calculate the transform. The output is done in a sliding window fashion.
 
The sampling rate is 44100 and it uses 256 samples to calculate the transform. The output is done in a sliding window fashion.
  
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Needed Libraries
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Fourier uses libsdl for graphics output and libfftw3 for the frequency analysis. You need to additionally install libfftw3 for FDOM, a suitable package can be downloaded here:
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libfftw3-3_3.1.2-r1_armv4t.ipk (8.5 KB)
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(obtained from http://www.angstrom-distribution.org/feeds/2007/ipk/glibc/armv4t/base/libfftw3-3_3.1.2-r1_armv4t.ipk)
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===Installation===
  
 
  opkg install http://www.angstrom-distribution.org/feeds/2007/ipk/glibc/armv4t/base/libfftw3-3_3.1.2-r1_armv4t.ipk  
 
  opkg install http://www.angstrom-distribution.org/feeds/2007/ipk/glibc/armv4t/base/libfftw3-3_3.1.2-r1_armv4t.ipk  
  
 
libsdl-1.2-0  
 
libsdl-1.2-0  
  http://www.opkg.org/packages/fourier_1.0_arm.ipk
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  http://www.opkg.org/packages/fourier_1.1_arm.ipk
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[[Category:Audio Applications]]

Latest revision as of 01:23, 25 December 2008

Fourier screenshot.png Fourier

a realtime frequency analysis of recorded sound data and displays it on screen.


Homepage: http://www.reitwiessner.de/openmoko/fourier.html
Package: fourier_1.1_arm.ipk
Tested on: Om 2008.8,FSO MS 4


download source:http://www.reitwiessner.de/openmoko/fourier-1.0.tar.gz

[edit] Introduction

Fourier screenshot.png

Fourier does a realtime frequency analysis of recorded sound data and displays it on screen.

The sampling rate is 44100 and it uses 256 samples to calculate the transform. The output is done in a sliding window fashion.

Needed Libraries

Fourier uses libsdl for graphics output and libfftw3 for the frequency analysis. You need to additionally install libfftw3 for FDOM, a suitable package can be downloaded here: libfftw3-3_3.1.2-r1_armv4t.ipk (8.5 KB) (obtained from http://www.angstrom-distribution.org/feeds/2007/ipk/glibc/armv4t/base/libfftw3-3_3.1.2-r1_armv4t.ipk)


[edit] Installation

opkg install http://www.angstrom-distribution.org/feeds/2007/ipk/glibc/armv4t/base/libfftw3-3_3.1.2-r1_armv4t.ipk 

libsdl-1.2-0

http://www.opkg.org/packages/fourier_1.1_arm.ipk
Personal tools

Fourier does a realtime frequency analysis of recorded sound data and displays it on screen.

The sampling rate is 44100 and it uses 256 samples to calculate the transform. The output is done in a sliding window fashion.


opkg install http://www.angstrom-distribution.org/feeds/2007/ipk/glibc/armv4t/base/libfftw3-3_3.1.2-r1_armv4t.ipk 

libsdl-1.2-0

http://www.opkg.org/packages/fourier_1.0_arm.ipk