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AudioAnalyser

Description

The program "AudioAnalyser" is a realtime frequency analyser for audio signals.

You can combine the "AudioAnalyser" with my other application "Multisine", if your soundcard supports the full duplex mode (only very old soundcards don't). With this combination you have a full equipped audio suite for your measurements.

I have written the application in C++ using the following libraries and tools:

Feature list of AudioAnalyser V2017.03

  • Samplingrate 1000 Hz ... 96 kHz
  • FFT length 1024 ... 32768 points
  • Stereo and Mono mode
  • Averaging mode (1-20)
  • Max hold mode
  • 5 different windows (Hanning, Hamming, Blackman, Blackman Harris, Rectangular)
  • Linear and logarithmic frequency axis
  • Vector Scope for stereo width and phase analysis
  • Real PPM Meter
  • 2 markers (Deltamarker) available
  • Variable axis settings
  • Level Correction value
  • Screenshots
  • Analyser Mode selectable between Amplitude Spectrum and Power Spectrum Density

System requirements

  • Win10, Win8, Win7, Vista
  • Soundcard

Release Notes

  • AudioAnalyser V2017.03
    • Date: 06.03.2017
    • Audio device now selectable
    • Added screenshot functionality
    • Added support for DirectSound Host Api
    • Selectable analyser mode (Amplitude Spectrum, Power Spectrum Density)
    • Improved frequency axis labeling for infrasound analysis
    • Updated all used Libraries
  • AudioAnalyser V2010.12
    • Date: 24.12.2010
    • Complete Redesign
    • Made Windows Vista and Windows 7 ready
    • Storage of user settings
    • Major improvement of measurement speed
    • Added real PPM Meter for accurate Level monitoring
  • AudioAnalyser V1.9
    • Date: 31.07.2006
    • Added measurement data export
    • Added 31 band analyser
  • AudioAnalyser V1.81
    • Date: 24.01.2006
    • Removed data acquisition bug in stereo mode
  • AudioAnalyser V1.8
    • Date: 22.01.2006
    • Added Level Meter
    • Mainwindow is now sizeable
  • AudioAnalyser V1.7
    • Date: 11.01.2006
    • Improved measurement speed
  • AudioAnalyser V1.6
    • Date: 05.01.2006
    • Added max hold mode
    • Added functionality to clear data
  • AudioAnalyser V1.51
    • Date: 16.08.2005
    • AudioAnalyser back again provided as freeware
  • AudioAnalyser V1.5
    • Date: 31.07.2005
    • Added marker functionality
    • Added graphical options
    • introduces demo and full version of AudioAnalyser
    • removed some bugs
  • AudioAnalyser V1.4
    • Date: 06.06.2005
    • Added Averaging functionality
  • AudioAnalyser V1.3
    • Date: 31.03.2005
    • Added Vector Scope
    • Removed some bugs
  • AudioAnalyser V1.2
    • Date: 19.03.2005
    • Added 2nd Channel for stereo Analysis
    • Moved Data Aquisition into own thread
  • AudioAnalyser V1.1
    • Date: 10.02.2005
    • Initial Revision
    • One Channel (Mono)