Open Source Audio Analysis Software

The Pure Data (short Pd) project on SourceForge unifies the extensions (or externals) written for the Pure Data Graphical Computer Music System written by Miller Puckette with contributions from many others.

MPC Maid ("MM") is a software editor for the Akai MPC 500, MPC 1000, and MPC 2500. It is Mac, PC, and Linux-compliant and makes the edition of MPC programs files easy. It also features a semi-automatic slicing tool to chop loops into slices.

MARF is a general cross-platform framework with a collection of algorithms for audio (voice, speech, and sound) and natural language text analysis and recognition along with sample applications (identification, NLP, etc.) of its use, implemented in Java.

VLevel is a dynamic compressor which amplifies the quiet parts of music. It uses a look-ahead buffer, so the changes are gradual and the audio never clips. It is a command line filter and a LADSPA plugin, so it works with XMMS.

jMIR is an open-source software suite implemented in Java for use in music information retrieval (MIR) research. It can be used to study music in the form of audio recordings, symbolic encodings and lyrical transcriptions, and can also mine cultural information from the Internet. It also includes tools for managing and profiling large music collections and for checking audio for production errors. jMIR includes software for extracting features, applying machine learning algorithms, applying heuristic error error checkers, mining metadata and analyzing metadata.

A C++ library and Python module for audio synthesis featuring dynamic digital filters. Nsound lets you easily shape waveforms and write to disk or plot them. Nsound aims to be as powerful as Csound but easy to use.

SoundRuler is a tool for acoustic analysis, graphing and teaching. It interactively recognizes and measures 35 temporal and spectral properties of each sound in a file. It also features several measurement, graphing and didactic modules.

KGuitar is powerful KDE-based music tabulature editor with support of guitar, drums, classic note scores, MIDI synthesizer output, chord, scales, modes, melody and rhythm construction and analysis tools, lots of tab effects, Guitar Pro files import.

Software oscilloscope using Python and tkinter. Supports multiple sources: socket, file, audio, USB. Displays data by samples, time or frequency. Scales the input automatically or manually.

baptools - broadcast audio production tools

IMMS is an intelligent playlist plug-in for XMMS that tracks your listening patterns and dynamically adapts to your taste. It is incredibly unobtrusive and easy to use as it requires no direct user interaction.

NOTE: Project is looking for a new maintainer MPEG Maaate is a platform to do compressed-domain analysis of mpeg audio files (mpeg-1 layers 1,2,3), which includes mp3 files. The library has a bunch of filters which are implemented as plugins, such as histogram, pauseRate, signalMagnitude etc. (last successful compile was probably round 2005)

VibroToolbox is a tool for research and education in vibrometry. Test your audio equipment, describe responses to vibratory stimulation and analyze directionality. It works with precision i/o hardware or simple sound cards, various sensors and speakers.

Quickplot is a fast interactive 2D plotter with infinite zooming, value picking, pipe input, and unlimited plots displayed. Quickplot is meant for looking at your data quickly and of secondary importance is making static pictures of your data.

Audio a Midi bajo octave. Solo soporta wav, pero pretendo que acepte otros. Quiero prepararlo para polifonía. <p>Audio to Midi converter, under octave, it only supports wav, but I pretend it to accept another files. I want to improve it to polyphonic.

Mixing Bhatkhande rules with Traditional and Learning based software techniques to classify of existing as well as predicting new North Indian (Hindustani) Classical Music raaga\'s (raga\'s)

DuMP3 is a duplicate and similar file finder. It finds exact duplicate binaries by hash, similar text files by substring content, images (JPG, BMP, GIF, PNG, etc) by color and audio files (MP3, WAV, OGG, etc) by wave data. Future: fonts, video.

The Java MPEG-7 Audio Encoder extracts some descriptors and description schemes of the MPEG-7 standard to describe an audio content (in this case: an audio file).

This project will try to develop an audio analyser which displays several informations as phase in 2 ways (1 dimensional and 2 dimensional), waves shapes, spectrogram in full range and by 1/3 octavia with the value of the current peak frequency, and meter

AutoTrans will transpose a Song for you. Choose the old key and the new key, klick the start button and voilá! Your song is transposed!

Noozy is an advance digital cross-platform music player mastered by Noozxoide sound processor its own. On this new baked 3ZS version many improved from the previous...

Palace is a visualization plugin for XMMS that allows musical control of a light show connected to a PC-style parallel port. Eventually it will become a generic "real-world" device control infrastructure.

This project is a Free Software implementation of reccomandation ITU-R.BS.1387 that provide to describe the algorithm of - Perceptual Evaluation of Audio Quality - (PEAQ).

Software oscilloscope using Python and tkinter. Supports multiple sources: socket, file, audio, USB. Displays data by samples, time or frequency. Scales the input automatically or manually. It has been renamed "pdatascope" to avoid a name-clash with Pyscope, a scoping package on PyPi. See https://sourceforge.net/p/pydatascope/ for the latest code.

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.