AUDMES ~ Oscilloscope & Spectrum Analyzer


AUDio MEasurement System – multi-platfrom system for audio measurement through a PC sound card. Incorporates generator, oscilloscope, audio spectrum analyzer (FFT) and frequency sweep characteristic. Can be compiled and works under Linux, Windows and MacOS.

Features:
  • Display audio spectrum (FFT)
  • Show wave form
  • Generate tones
  • Only requires a sound card
  • Uses WxWidgets
  • Source code available

https://sourceforge.net/projects/audmes/

Sine Generator ~ Windows Sine & Tone Generator


Sine generator combines individual sine or square waves into a single waveform. Parameters are frequency, frequency modulation, noise, phase, volume and wave type.

Features:

  • sine generator
  • tone generator
  • wav file output

sine_generator

sourceforge.net/projects/sinegenerator

tonedeaf ~ Online Hearing Test


Test your musical skills in 6 minutes!

While working at the music and neuroimaging lab at Beth Israel/Harvard Medical School in Boston, I developed a quick online way to screen for the tonedeafness. It actually turned out to be a pretty good test to check for overall pitch perception ability. The test is purposefully made very hard, so excellent musicians rarely score above 80% correct. Give it a try!

Website

KeyFinder ~ Musical Key Song Analyser


KeyFinder is an open source key detection tool, for DJs interested in harmonic and tonal mixing. It’s intended to be very focused: no library management, no track suggestions, no media player. Just a fast, efficient workflow tool. It supports a huge range of codecs thanks to LibAV, and writes to metadata tags using TagLib.

keyfinder

www.ibrahimshaath.co.uk/keyfinder
github.com/ibsh/is_KeyFinder