Tag Archives: vocoder

aubio ~ Audio Labelling Library

Posted by tom2tec on

aubio is a tool designed for the extraction of annotations from audio signals. Its features include segmenting a sound file before each of its attacks, performing pitch detection, tapping the beat and producing midi streams from live audio.

Because these tasks are difficult, we thought it was important to gather them in a dedicated library. To increase the fun, we have made these algorithms work in a causal way, so as to be used in real time applications with as low delay as possible. Functions can be used offline in sound editors and software samplers, or online in audio effects and virtual instruments.

Features:

aubio currently provides the following features:

  • digital filters
  • phase vocoder
  • onset detection (several methods)
  • pitch tracking (several methods)
  • beat and tempo tracking
  • mel frequency cepstrum coefficients (MFCC)
  • transient / steady-state separation

aubio.org
github.com/aubio
aubio.org/documentation
aubio.readthedocs.io/en/latest/

rt_pvc ~ Realtime Phase Vocoder

Posted by tom2tec on

rt_pvc is a:

  • real-time phase vocoder library for synthesis/analysis
  • vocoder application that allows the user to do time-expansion, frequency expansion, and cross-synthesis in real-time, from mic-input or from file.
  • real-time phase vocoder visualization
  • learning tool that teaches about the phase vocoder and its implementation
  • open source!

soundlab.cs.princeton.edu/software/rt_pvc
aur.archlinux.org/packages/rt_pvc

mda VST ~ Cross-platform Effect Plugins

Posted by tom2tec on

These free effect plug-ins work with Cubase and other VST compatible applications

The plug-ins:

Bandisto – Multi-band distortion
BeatBox – Drum replacer
Combo – Amp & speaker simulator
De-ess – High frequency dynamics processor
Degrade – Sample quality reduction
Delay – Simple stereo delay with feedback tone control
Detune – Simple up/down pitch shifting thickener
Dither – Range of dither types including noise shaping
DubDelay – Delay with feedback saturation and time/pitch modulation
Dynamics – Compressor / Limiter / Gate
Envelope – Envelope follower / VCA
Image – Stereo image adjustment and M-S matrix
Leslie – Rotary speaker simulator
Limiter – Opto-electronic style limiter
Loudness – Equal loudness contours for bass EQ and mix correction
Multiband – Multi-band compressor with M-S processing modes
Overdrive – Soft distortion
Re-Psycho! – Drum loop pitch changer
RezFilter – Resonant filter with LFO and envelope follower
Round Panner – 3D panner
Shepard – Continuously rising/falling tone generator
Splitter – Frequency / level crossover for setting up dynamic processing
Stereo Simulator – Haas delay and comb filtering
Sub-Bass Synthesizer – Several low frequency enhancement methods
Talkbox – High resolution vocoder
TestTone – Signal generator with pink and white noise, impulses and sweeps
Thru-Zero Flanger – Classic tape-flanging simulation
Tracker – Pitch tracking oscillator, or pitch tracking EQ
Vocoder – Switchable 8 or 16 band vocoder
VocInput – Pitch tracking oscillator for generating vocoder carrier input

mda.smartelectronix.com
sourceforge.net/projects/mda-vst