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Continuous display of audio spectrum from PC input or wave file
Reads audio from Windows audio interface or wave file and creates a continuous spectrum display. Command line support for generating sine, square, triangle and sawtooth wave files. Uses biquad IIR digital filters for frequency detection, plus digital lowpass filters for output extraction. Highly configurable. 60+ FPS with suitable hardware. Manual or automatic gain control.
SPTK is a suite of speech signal processing tools for UNIX
environments, e.g., LPC analysis, PARCOR analysis, LSP analysis,
PARCOR synthesis filter, LSP synthesis filter, vector
quantization techniques, and other extended versions of them.
Weakening effect on the MP3 audio encoder
and the assimilation of the spectral characteristics of the source.
Produced by applying empirical filter
(derived from an analysis of a pair of flac-mp3)
to the sound in the space R2.
1) Transfer the sound of the space R to R2 (mp3rsrr2);
2) Finding the empirical filter by OLS pair flac-mp3 (mp3rsols);
3) Apply a filter to the sound (mp3rsvalue);
4) Transfer the sound of the space R2 in space R (mp3rsr2r);
This project contains a pitch detect and a voice endpoint detect algorithm. Also codes for a digital filter and drawing font on bitmap file.
It is just for study, nothing more, so be have fun!
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SAA (SSPLab Audio Analyzer)
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.
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.