freeDSP ~ DIY Audio DSP Project


The freeDSP is an open-source digital signal processor family for the do-it-yourself community. The applications range from active loudspeaker concepts (digital crossovers, bass enhancement, …) and room equalization over advanced musical effect processors to car audio signal processing.

freeDSP_1_0_side_small

/www.freedsp.cc

OpenSebJ ~ Real-time Sample Mixer


OpenSebJ is a free real time audio sample mixer that runs on Microsoft Windows. The source code for OpenSebJ is released under the GNU General Public License.

  • Supports loading of 255 audio samples, in wav format, which can be played in real time.
  • Sample properties such as volume, pan and frequency can be adjusted individually for each sample. (even during mid-play)
  • A composition tool is provided and presented in a familiar multi-track sequencer environment. Looping compositions are also supported.
  • Samples can be linked to keys on a keyboard and triggered in real time when a key press occurs.
  • Each sample can also have the play cursor position adjusted while the sample is playing, to provide a virtual needle to be moved.
  • Stream to disk recording, allows all audio played from OpenSebJ to be saved.
  • Pitch shifter roll, allows an order to be set up, so that each time a sample is played, the next pitch shift in the sequence is undertaken before the sample is played. i.e. set up a sample to key ‘1’, then set up a pitch shift sequence, high, mid, low, higher, etc. (using frequency values which are transposed onto screen ‘ranges’ to allow easier utilization).

opensebj

evolvingsoftware.com/opensebj

PaulStretch ~ Paul’s Extreme Sound Stretch


This is a program for stretching audio. It is suitable only for extreme sound stretching of the audio (like 50x) and for applying special effects by “spectral smoothing” the sounds. It can transform any sound / music to a texture. The program is Open-Source and it’s released under the version 2 of the General Public License. You can download the source code for Linux or the Windows binaries.

http://hypermammut.sourceforge.net/paulstretch

RAT ~ Open Source Audio Conferencing


The Robust Audio Tool (RAT) is an open-source audio conferencing and streaming application that allows users to participate in audio conferences over the internet. These can be between two participants directly, or between a group of participants on a common multicast group.

rat-4.3.00

mediatools.cs.ucl.ac.uk
freshmeat.sourceforge.net/projects/rat

NINJAM ~ Host An Internet Jam


NINJAM is open source (GPL) software to allow people to make real music together via the Internet. Every participant can hear every other participant. Each user can also tweak their personal mix to their liking. NINJAM is cross-platform, with clients available for Mac OS X, Linux and Windows. REAPER (our digital audio workstation software for Windows and OS X) also includes NINJAM support (ReaNINJAM plug-in).

ninjam_win32

Website
Source code – GitHub

Elpetozede ~ Split An Album Into Tracks


Elpetozede is a multi-platform, open source tool to split a wave file (.wav), which contains the complete audio recording of one side of a vinyl record or a cassette tape into single wav files, one for each track. It searches an Internet database (musicbrainz.org) for the album data, so, with a little luck, you won’t need to type all the track information by hand.

Elpetozede

elpetozede.sourceforge.net