studiotoolz♥

MultiInspectorFree is a 31 band spectral analyzer designed to be used in a multitrack environment. Based on the technology of FaderWorks to handle multiple dependent instances of the same plug-in, MultiInspectorFree provides an easy way for simultaneous spectral analysis of several audio signals.
The first instance of MultiInspectorFree behaves like a standard 31 band spectral analyzer. [...]

Sonic Visualiser is an application for viewing and analysing the contents of music audio files.
The aim of Sonic Visualiser is to be the program you reach for when you find a musical recording you want to study rather than simply hear.
As well as a number of features designed to make exploring audio data as [...]

WaveSurfer is an Open Source tool for sound visualization and manipulation. It has been designed to suit both novice and advanced users. WaveSurfer has a simple and logical user interface that provides functionality in an intuitive way and which can be adapted to different tasks. It can be used as a stand-alone tool for a [...]

sndpeek :
real-time audio visualization
sndpeek is just what it sounds (and looks) like:
real-time 3D animated display/playback
can use mic-input or wav/aiff/snd/raw/mat file (with playback)
time-domain waveform
FFT magnitude spectrum
3D waterfall plot
lissajous! (interchannel correlation)
rotatable and scalable display
freeze frame! (for didactic purposes)
real-time spectral feature extraction (centroid, rms, flux, rolloff)
available on MacOS X, Linux, and Windows under GPL
part of the sndtools [...]

rt_lpc : real-time LPC analysis + synthesis + visualization
rt_lpc is a light-weight application that performs real-time LPC analysis and synthesis. It features the following:
real-time LPC analysis
real-time LPC synthesis
visualization of original, predicted, and error waveforms
visualization of vocal tract shape from LPC coefficients
adjustable LPC analysis order
adjustable synthesis pitch shift
MIDI controlled pitch (hit ‘m’)
lots of other choices [...]

Realtime audio analysis from either microphone/line in or a sound file. Built with Max/MSP/Jitter by Cycling ‘74.
Features:
Spectrogram
Brightness
Loudness
Noisiness
Pitch detection
Onset detection
BARK values
http://www.hf.uio.no/imv/forskning/forskningsprosjekter/musicalgestures/resources/ (2326 clicks)

Sinusoidal Partial Editing Analysis and Resynthesis
SPEAR is an application for audio analysis, editing and synthesis. The analysis procedure (which is based on the traditional McAulay-Quatieri technique) attempts to represent a sound with many individual sinusoidal tracks (partials), each corresponding to a single sinusoidal wave with time varying frequency and amplitude.
Something which closely resembles the original [...]

bs-spectrum is a spectrum analyzer for Steinberg VST plugin format that features linear and logarithmic modes.
http://homepage.mac.com/bismark/bs-spectrum/index.html (629 clicks)

Fre(a)koscope is an FFT-based real-time spectrum analyzer featuring: lin/log/semitones/third-octave/Bark scales
- window size selection
- frequency zooming
- freeze
- peak hold
- cursor information (amplitude+frequency)
planned:
- mel/Erb frequency scales
- spectrum averaging
- basic informations like spectral centroid, dominant pitch…
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http://mdsp.smartelectronix.com/ffttools/ (1880 clicks)

Peakme is a large RTAS peak meter with phase probe and scope. .
NEW: MS decoding, mono monitoring, phase invert and more…
You must have Pluggo, Pluggo Demo, or a free Pluggo Runtime installed to use it.
http://www.sonoria.pl/jk/pluggox.html (3202 clicks)

Analizator is a real time 50 band frequency display.
You must have Pluggo, Pluggo Demo, or a free Pluggo Runtime installed to use it.
http://www.sonoria.pl/jk/pluggox.html (3202 clicks)

Spectrum Analyzer and more…
Inspector’s spectrum analyzer gives you a clear picture of the sonic properties of your mix. Real-time numeric readouts for balance, headroom, and clip incidents tell you exactly what is happening from sample to sample. All in a compact size to save your desktop space.
Let Inspector keep watch over your mix – you [...]

Audio Stream Bit Analyzer
A unique plugin originally developed by Tobybear. This plugin counts the bits really used in an audio stream.
It is part of Tobybear’s Utilbag compilation and donationware.
apulSoft translated this plug from Delphi to C++
and ported it to mac osx vst & au
BitViewer can be downloaded here:
http://www.apulsoft.ch/freeports/index.php (640 clicks)

RMS Buddy is a handy tool for tracking RMS and peak volume information.
It provides a cumulative, running average RMS of the audio signal, momentary RMS values, and it keeps track of the peak volume levels.
I find it very useful when I’m mastering stuff.
http://destroyfx.smartelectronix.com/extras/ (596 clicks)

Sonogram has been programmed at the German Research Center for Artificial Intelligence (Deutsches Forschungszentrum fuer Kuenstliche Intelligenz DFKI, www.dfki.de (245 clicks)). Sonogram is an signal analyze tool to visualize different signal analyze algorithms in the frequency domain. It generates visual plots/graphs from this algorithms and has the ability to render three dimensional interactive plots of [...]

AudioXplorer is a powerful sound analyzer software designed specifically for MacOS X.
AudioXplorer provides real-time analysis window where user can visualize the sound, spectrum and sonogram. Several real-time windows can be opened simultaneously.
AudioXplorer provides static analysis window: user can record or generate any sound and performs operation on it. Sound from the real-time window can be [...]

An audio file Leq analyzer. Leq (Long-Term Equivalent Level) is the averaged (RMS) loudness level for a recording.
AudioLeak allows quickly (over 200 times realtime on newer Macs) and easily previewing the relative (perceived) playback volume of sound / music files without having to listen to them. Various compressed and uncompressed audio formats are supported, of [...]

(1457 clicks)
Frequency is a spectral audio editor. The central feature is an amplitude brush tool using which one can paint amplitude modifications unto a sound’s spectrum. Create strange sounds with this one and paint on top of any audio file…

(385 clicks)
FFTea is a real time high resolution spectrum analyser for MacOS X. It was born as a debugging tool for a sound driver. Then it degenerated into something that eats enough CPU, memory and graphic card power to be worthy of release to the unsuspecting world.
It is a surprisingly interesting way to “look” [...]