Open Source Mac Audio Analysis Software

MP3Gain analyzes and losslessly adjusts mp3 files to a specified target volume. It does not simply do peak amplitude normalization. Instead, it performs statistical analysis to determine how loud the file actually sounds to the human ear.

Audacity is a free, easy-to-use, multi-track audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems. Audacity is free software, developed by a group of volunteers and distributed under the GNU General Public License (GPL). Programs like Audacity are also called open source software, because their source code is available for anyone to study or use. There are thousands of other free and open source programs, including the Firefox web browser, the LibreOffice or Apache OpenOffice office suites and entire Linux-based operating systems such as Ubuntu

LAME is an educational tool to be used for learning about MP3 encoding. The goal of the LAME project is to improve the psycho acoustics, quality and speed of MP3 encoding. Note: we provide source code only!

Finds problems in MP3 files and helps the user to fix many of them using included tools. Looks at both the audio part (VBR info, quality, normalization) and the tags containing track information (ID3.) Also includes a tag editor and a file renamer.

WaveSurfer is an open source tool for sound visualization and manipulation. Typical applications are speech/sound analysis and sound annotation/transcription. WaveSurfer may be extended by plug-ins as well as embedded in other applications.

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.

projectM is an OpenGL based advanced music visualization program for Linux, Mac OSX, and Windows. It is backward compatible with all the features of Milkdrop 1.x (and now 2.x), but has many new toys and enhancements.

MediaInfo is a convenient unified display of the most relevant technical and tag data for video and audio files.

Graphical User Interface (GUI) for MP3Gain, VorbisGain and AACGain (enables you to modify the loudness level of mp3,ogg,mp4 files) / Frontend for MP3Gain / Grafische Benutzeroberflaeche fuer MP3Gain, VorbisGain und AACGain

AUDio MEasurement System - a multi-platfrom system for audio measurement through sound card in the PC. It contains: generator, oscilloscope, audio spectrum analyzer (FFT) and frequency sweep plot. Compiles and works under Linux, Windows and MacOS. Source code is available in "git" and as ZIP snapshot. For more information see README.md

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.

getID3() is a PHP script that extracts useful information (such as ID3 tags, bitrate, playtime, etc.) from MP3s & other multimedia file formats (Ogg, WMA, WMV, ASF, WAV, AVI, AAC, VQF, FLAC, MusePack, Real, QuickTime, Monkey's Audio, MIDI and more).

Umami is a simple, easy to use, self-hosted web analytics solution. The goal is to provide you with a friendlier, privacy-focused alternative to Google Analytics and a free, open-sourced alternative to paid solutions. Umami collects only the metrics you care about and everything fits on a single page. You can view a live demo here. Umami measures just the important metrics that you care about: pageviews, devices used, and where your visitors are coming from. Everything is displayed on a single, easy to browse page. Umami is able to track an unlimited number of websites from a single installation. You can even track subdomains and individual URLs. Umami is hosted by you under your own domain so you can reliably avoid ad-blockers unlike Google Analytics. The tracking script is tiny (only 2KB) and supports legacy browsers like IE. Umami can be used to host data for friends or clients. Just create a separate account and they can start tracking their own websites on their own dashboard.

The FFT library to "Keep It Simple, Stupid" This is the original home of kissfft. Most recent development is at https://github.com/mborgerding/kissfft Please ask questions on stackoverflow.com

dvbsnoop - DVB analyzer / MPEG analyzer program to monitor, analyze, debug, dump or view dvb/mpeg/dsm-cc/mhp stream information (TS, PES, SECTION) (e.g. digital television) send via satellite, cable or terrestrial.

DRC generates digital room correction FIR filters to be used within HiFi systems in conjunction with real time convolution engines like BruteFIR.

As a library of classes for generating and manipulating music and sound, jMusic provides a solid framework for computer assisted composition in Java. jMusic has a music data structure based upon note/sound events and methods for modifying and structu

CECILIA is an environment for music and signal-processing that uses Csound as its underlying audio processing engine. One can think of CECILIA as a completely programmable sound-processing tool, with real-time interactive processing on soundfiles or live

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.

mp3guessenc is based upon the original project by Naoki Shibata. This command line utility was born to detect the encoder used for a mpeg layer III file but now it can do more and scan any mpeg audio file (any layer) and print a LOT of useful information. Latest modifications include fixes, new features and code optimizations.

Sonic Visualiser is an application for inspecting and analysing the contents of music audio files. It combines powerful waveform and spectral visualisation tools with automated feature extraction plugins and annotation capabilities.

Best level of equalization sound, convert your audio format, listen web radio, show music representation with spectrum and VU metter. Set equalization in played music, apply effects. Feel the difference and change your experience to listen music.

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 apps converts Behringer X32/M32 scene files to the new Wing snapshot files. Scenes includes multiple lines of OSC commands and saves most of the settings of the console. The new Wing snapshots uses a completely different protocol (called JSON) that saves all of the console settings.

This project is the MATLAB development of a virtual sound level meter. The program will read in a calibrated .wav file and allow the user to analyze it as one would analyze a sound field with a sound level meter. The software implements Fast, Slow, Impulse and LEQ; A, C and Flat Weighting; Ln and Noise Dose analysis; Octave and 1/3 Octave band analysis; high resolution FFT analysis and spectrograms. Band analysis can be made using fast FFT methods or slower, but ANSI standard methods. Source code requires MATLAB + Signal Processing Toolbox. Developed under MATLAB R2010a (but might work with some earlier versions) Executable version does not require MATLAB and runs under Windows XP, Vista, and Windows 7.