In applications such as audio denoising, music transcription, music remixing, and audio-based forensics, it is desirable to decompose a single-channel recording into its respective sources. To perform such tasks, we present a new software tool to perform source separation by painting on time-frequency visualizations of sound. Initial results shows the software can achieve state-of-the-art separation results compared to prior work.
Features:
- Source separation
- Denoising
- Painting
- Interaction
Category Archives: Unix
Jalmus ~ Improve Music Reading
Jalmus is a free, open source music education software helping musicians, especially pianists, to improve their sight-reading. You can train to read music with both exercises on notes or rhythms.

Nootka ~ Learn Classical Score Notation
Nootka is an application to help learn classical score notation. It helps in understanding the rules of reading and writing scores and helps with developing skills of playing and singing notes.
Simply: users looks at piece of a score, plays it, while Nootka is listening to it, checks and shows was it played well. All in real time.
Features:
- interactive interface to discover the rules of musical notation
- exercises with possibility to create own sets
- accurate method for detecting sung and played sounds
- natural sound of guitars
- clefs (treble, bass and others) and grand staff
- analysis of results
- different kinds of guitars and their tuning

Helm ~ Open Source Synthesizer
Helm runs in GNU/Linux, Mac OSX and Windows. Run Helm as a standalone synthesizer or as an LV2, VST, VST3 or AU plugin. Comes in both 32-bit and 64-bit versions.

lossyWAV ~ Lossy PCM In WAV File Format
lossyWAV is a free, lossy pre-processor for PCM audio contained in the WAV file format. Proposed by David Robinson, it reduces bit depth of the input signal, which, when used in conjunction with certain lossless codecs, reduces the bitrate of the encoded file significantly compared to unpreprocessed compression. lossyWAV’s primary goal is to maintain transparency with a high degree of confidence when processing any audio data. ~ wiki.hydrogenaud.io/index.php?title=LossyWAV
lossyWAV is a near lossless audio processor which dynamically reduces the bit depth of the signal on a block-by-block basis. Bit Depth reduction adds noise to the processed output. The added noise is adaptively shaped by default and can alternatively be fixed noise shaped or white noise depending on command line parameters. When lossyWAV processed output is compressed with certain lossless codecs (FLAC, Wavpack, Tak, LPAC, MPEG-4 ALS and WMA-Lossless) the bitrate of the output file is significantly[1] reduced compared to the lossless original.
[1]: on average, depending on content.
hydrogenaud.io/index.php/topic,112649
wiki.hydrogenaud.io/index.php?title=LossyWAV#lossyWAV_and_foobar2000
github.com/corrideat/lossywav
github.com/MoSal/lossywav-for-posix
INFAMOUS Plugins ~ Linux LV2 Audio Plugins
These are audio plugins in the LV2 format, developed for Linux. Most are suitable for live use (exceptions are noted in the description).
- Cellular Automaton Synth
- Envelope Follower
- Hip2B
- Cheap Distortion
- Stuck
github.com/ssj71/infamousPlugins
ssj71.github.io/infamousPlugins/plugs
GNUitar ~ Multiplatform Guitar Effects
GNUitar is guitar effects software that allows you to use your PC as a guitar processor. It includes the following effects: wah-wah, sustain, distortion, reverberator, echo, delay, tremolo, vibrato, and a chorus / flanger.



FreqAnalyst ~ Spectrum Analyzer VST
Blue Cat’s FreqAnalyst is a free spectrum analyzer plug-in that lets you monitor the spectral content of your audio signal in real time.
This plug-in has been designed to provide extreme smoothness and high resolution for both time and frequency: unlike most spectrum analyzers, Blue Cat’s FreqAnalyst is able to display continuous variations even with a very high frequency resolution, thanks to its unique smooth interpolation algorithms.
Most aspects of the audio to frequency display conversion can be managed, which lets you total control over the monitoring. A special thresholding system has been developed to help you see the important parts of the spectrum easily. In case you need extra precision in a particular frequency range, you can zoom the display and check the part of the graph you are interested in.

www.bluecataudio.com/Products/Product_FreqAnalyst
References:
PyKaraoke ~ Cross-platform Karaoke Player
PyKaraoke is a free karaoke player for Linux, FreeBSD, NetBSD, Windows, OSX and GP2X.
You can use this program to play your collection of CDG, MIDI and MPEG karaoke songs. No songs are provided, you must obtain these from elsewhere.
Visit here to find out more about what a CDG or MP3+G file is. In short, CDG is the format of professional karaoke CDs. These CDs can be ripped to your hard disk, and turned into a .mp3 file together with a .cdg file. This player gives you the ability to play those mp3+cdg files.
PyKaraoke Features:
- CDG (MP3+G, OGG+G, WAV+G) playback – Play standard CDG karaoke files
- MIDI (.MID/.KAR) playback – Play MIDI format karaoke files
- MPEG playback – Play karaoke songs and movies in MPEG format
- Other formats – Play any other video formats by launching an external media player
- Playlist – Queue up songs, sit back and enjoy
- Searchable song database – Easily find your songs from the main screen
- Search inside ZIP files – Play MP3+G/MIDI files wrapped in ZIP files
- Cross-platform – Runs on Windows, Linux, BSD, OSX and GP2X
- Mini Frontend – Additional mini-frontend for low res displays and handhelds
- Export to MPEG – Convert CDG and KAR files to MPG files (command line only)



Common Music ~ Algorithmic Music Composition
Common Music (CM) is a real-time music composition system implemented in JUCE/C++ and Scheme. It generates musical output via MIDI, OSC, CLM, FOMUS and CSOUND. Its user application is called GRACE (Graphical Real-time Algorithmic Composition Environment)
Features:
- Algorithmic music composition environment
- Runs on Mac, Windows and Linux
- Real time scheduling of musical algorithms
- Two coding languages for designing algorithms: S7 Scheme and SAL (an easy-to-learn alternate)
- MIDI input/output
- CLM/Sndlib audio system built in (Scottstaedt)
- CCRMA digital audio instrument definitions built in (Scottstaedt)
- Open Sound Control input/output
- Metronomes and running algorithm redefinition for live coding
- Data visualization
- Music pattern definitions
- Fomus system built in for computing music notations (Psenicka)
commonmusic.sourceforge.net
sourceforge.net/projects/commonmusic
Jamulus ~ Internet Jam Sessions
The Jamulus software enables musicians to perform real-time jam sessions over the internet. There is a Jamulus server which collects the audio data from each Jamulus client, mixes the audio data and sends the mix back to each client.

jamulus.io
sourceforge.net/projects/llcon
en.wikipedia.org/wiki/Jamulus
PianoBooster ~ Boost Your Playing Skills
A MIDI file player that teaches you how to play the piano. PianoBooster is a fun way of playing along with a musical accompaniment and at the same time learning the basics of reading musical notation.
Features:
- Piano Booster follows your playing when playing along to a musical accompaniment. (If you stop then so does the music).
- Play a single hand and Piano Booster will play the other hand in time with you (and will also play the violins, the bass, the drums etc. in time with you).
- Change the speed of playback to match your playing ability.
- Transpose +/- 12 semitones without stopping the play back.
- Change the Key Signature of the piece.
- Plays any standard midi or kar file.
- Play along to any instrument in the midi file.
- Adjust the volume of the current part or the volume your piano part.
- See the accuracy of you playing.
- Change the start bar to start playing from any bar in the music. The repeat bars allows you to practice just a few difficult bars continuously.
- Timing markers are white crosses that are drawn over each note and show if you are playing ahead or behind the beat.
- A different instrument sound is used for the right and wrong notes that you play.

pianobooster.sourceforge.net
sourceforge.net/projects/pianobooster
