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PC based Oscilloscope and Spectrum analyzer using sound card
AUDio MEasurement System - a multi-platfrom system for audio measurement through sound card in the PC. It contains: generator, oscilloscope, audio spectrum analyzer (FFT) and frequency sweep plot. Compiles and works under Linux, Windows and MacOS. Source code is available in "git" and as ZIP snapshot. For more information see README.md
The CLUNK C++ library provides support for real-time 3D(binaural) sound generation. It puts virtually no limitations on the developer; people who have experienced working with other solutions (such as SDL_Mixer or Creative OpenAL) will respect this advan
mpg321 is a completely Free drop-in replacement for mpg123. It has been designed to work as a drop-in replacement for mpg123, for the use of front ends, shell scripts, etc. It does all mp3 decoding using the high-quality integer-only MAD library.
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Zwicker's Loudness Calculation (ISO532B) Tools. The project includes a loudness calculation program based on Zwicker's Method, and a WAV file analyzer generating data files for loudness calculation. Documentation and test files are also provided.
This program transforms the sound or the image using a single large FFT window and allows to do many interesting and strange effects to sounds and images. There is included another program who does extreme-time-stretch of the audio.
Tune is a note/chord detecting program for use with guitars, pianos, or voices. It uses an FFT to analyze incoming sound and computes the root frequency.
FreqTweak is a tool for FFT-based realtime audio spectral manipulation and
display. It provides several algorithms for processing audio data in
the frequency domain with a highly interactive GUI to manipulate and
display the spectral data.
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eXtace is a 3D audio visualization tool (or eye candy depending on how you look at it). eXtace requires ESD (Esound) for its sound input source. It performs a FFT (fast fourier transform) on audio and displays it via various graphical modes.
Sonogram and waveform display programm for Unix using different algorithms like FFT and LPC to display musical features or potential artefacts that you may no be able to hear. Superimposed tuneable Staff-Lines allow for easy transcription of music.
SAA (SSPLab AudioAnalyzer)
It will be able to separate sources, recognize speech and analyze
the auditory scene. It can also synthesize spatialised sounds from
mono recording, edit, analyze via spectrogram, filter and re-sample
signals.
NATSpectrum is a skinnable Spectrum Analyzer, Guitar Tuner, and Quick Volume Control. NS visualization mimics WinAMP 2.x style. NS is written in pure Win32 C++ and uses DirectDraw and DirectSound. (FFT, Frequency, Mixer, Microphone, DirectX, PNG, Record)
Gwave Analyzer is a little program for Linux which allows you to visualize and analyze a RIFF WAVE file. The special characteristic of gwave is the ability to extract the melody from the WAV file. The melody is saved in MIDI format.
This plugin provides a nice spectrum analyzer for XMMS without being a CPU hog. You can even see the harmonics of a nice violin play. Source tarball only, helpers for packaging (DEB, RPM) needed. There are no extra features, but no bugs known either.
VSA is a visual sound analyzer (eye candy to go along with
audio) for GNOME and EsounD. VSA supports layering any
number of visualization, background or filter plug-ins, in any
order.