tontoko hirorin said:
Spectral Anlyzer is useful instrument, but generally a bit expensive,
isn't it? The spectral analyzer FerFT is cheap as from $29.85. The
frequency range is 0-20kHz. For details, please visit:
(snip)
From [
http://linux-sound.org/dsp.html ]:
FFT/Phase Vocoder:
Enveloper
draw FFT components and amplitude waveforms with this Java-based
software from Abram Hindle
FreqTweak
Jesse Chappell's very neat "tool for FFT-based realtime audio
spectral manipulation and display"
GWave
Analyzer visualizes/analyzes WAV files via FFT, also extracts
melody to MIDI file
Kiss FFT
very small FFT library, can use either fixed or floating point
data types
NoTAM
FFT/phase vocoder packages with X11 GUI now available for Linux:
Bio
multiple graphic representations of soundfile
Ceres
fascinating spectral editor
Ceres2
Johnathan Lee's wonderfully enhanced version
Ceres2w
WAV and glibc support for Ceres2, from Reine Jonsson
Ceres3
a superb version from Stanko Juzbasic
Mammut
treats entire sound as single spectral analysis window
NoTAMProgs
the famous Institute has prepared its own sources for Linux
Sculptor
a very nice suite of realtime FFT tools
XMANA
data display program with FFT and other transforms, uses
XMAD data acquisition files
From [
http://linux-sound.org/scopes.html ]:
Alsa-Nyser
cool scope from Raphael Francois
Cthugha
"an oscilloscope on acid..."
DireShow
frequency analyzer with a nice SVGA interface
Freq51
realtime spectrum analyzer, and a patch which indicates
frequencies as musical note-names
JXSpectrum and XSpectrum
two more frequency analyzers
Sonogram
very nice audio visualization package from Christoph Lauer,
requires Java2
SoundMan
another excellent audio visualization app
Spectrogram
samples data from soundcard, displays FFT spectrogram in realtime
Waterfall
realtime spectrum analyzer for XMMS
WMscope
audio display applet for Window Maker or Afterstep
XPortShot RT
Gtk-based oscilloscope simulator for Linux
baudline
excellent realtime frequency analyzer with varied displays
eXtace
a much-improved version of this scope/visualizer
kanalyzer
KDE applet to display the spectrum or the time-domain signal
from a soundcard
xanalyser
realtime frequency spectrum analyser for X, from Arvin Schnell
xsr
oscilloscope and spectrum analyzer, output to root window
From [
http://linux-sound.org/dsp.html ]:
General Analysis/Processing:
Aglaophone
"...a system of interconnectable modules for the recording,
processing, and playback of real-time audio"
ATSH
very cool analysis/resynthesis program from Prof. Oscar Pablo Di Liscia
Dataplore
"a software tool designed for the analysis of signals and time series
data of any kind"
HASAS
HydroAcoustic Signal Analysis System from Jussi Laako
InSpect
sound analysis/resynthesis/transformation from Sylvain Marchand
LastWave
wavelet DSP software from Emmanuel Bacry
Mustajuuri
audio signal processing software with GUI and support for plug-ins
Scilab
a large package of mathematics & signal processing functions
with excellent graphic displays
Signal Applications To Audio Networks (SATAN)
"a program that is used for various audio related signal processing tasks"
SNDAN
signal analysis, graphics, modification, and synthesis
Sound Ruler
acoustic analysis software from Marcos Gridi Papp
SSPLab AudioAnalyser (SAA)
"... a tool for analyzing audio signals in terms of its content"
Yorick
another mathematics package with signal processing and data
visualization tools
dsplab Xforms-based DSP visualization and manipulation software
Convolution:
Almus VCU
"... makes a computer equipped with a multi-channel sound card
into a real-time versatile convolver unit"