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This analyser derives the 1/12-octave band power spectrum from a succession of fast Fourier transforms. Frequency bands are the IEC frequencies (with 1/12-oct bands based on...
This analyser derives the 1/3-octave band power spectrum and octave band power spectrum from a succession of fast Fourier transforms. Frequency bands are the IEC frequencies (with 1/3-oct bands...
This analyser performs a 1/3-octave band analysis of the input wave and outputs the 1/3-octave band time-spectrum and spectrum and specific loudness pattern following ISO532B (Zwicker...
The PsySound3 team
Densil Cabrera (University of Sydney)
Sam Ferguson (University of Sydney)
Farhan Rizwi (University of New South Wales)
Emery Schubert (University of New South...
Audio analysers are modules within PsySound3 that analyse the audio waveform. The input to an audio analyser is a sound file, and the output is data, which could be in several...
This adjusts sets the gain of the analysis so that the full scale (square wave) level is the value specified. In other works, you specify the maximum possible sound pressure level for the sound...
Overview
Auto-correlation is a type of periodicity analysis, but the output is expressed as lag time, rather than frequency. Peaks at short time lags correspond to high frequency content. This...
Overview
This analyser implements auto-correlation and cross-correlation of binaural recordings to derive the ACF/IACF parameters described by Yoichi Ando.
Input must be a 2-channel sound file and...
The purpose of this page is not to document every bug, but to highlight some that might inconvenience users, and so help avoid them
If you wish to report bugs or suggest program enhancements,...
This method of calibration uses a reference sound file that has a known sound pressure level (relative to the gain of the recording that is to be analysed).
This method is useful if:
you have...
This method gives you several options for adjusting the level.
To Sound Pressure Level of X
This method adjusts the sound file(s) to a user-specified equivalent sound pressure level. This could be...
Overview
This analyser conducts cepstral analysis for each window of the audio file. A complex cepstrum is the inverse Fourier transform of the complex logarithm of a Fourier transform. As such, it...
Overview
This analyser conducts cepstral analysis for each window of the audio file. A real cepstrum is the inverse Fourier transform of the logarithm of the magnitude of a Fourier transform. As...
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Ways to contribute
Contribute code
Contact the PsySound3 team if you wish to have an analysis method that you have Matlab code for implemented within PsySound. There are various ways of achieving...
Overview
This analyser implements the dynamic loudness model of Chalupper and Fastl (2002), as well as the loudness fluctuation model of Chalupper (2000). These models use the Bark critical band...
Analysis Concept
PsySound3 has sound files as input, and provides various formats of data as output. It does not do 'real time' analysis.
Calibration
PsySound3 provides several methods for...
Overview
The fast Fourier transform (FFT) is one of the most widely used methods of frequency spectrum analysis. This analyser conducts a succession of FFTs over the length of the audio file, and...
Overview
This analyzer conducts a Hilbert transform of the audio waveform, and outputs the instantaneous level, frequency and phase. The Hilbert transform is a simple way of extracting the envelope...
If you are allowed to edit pages in this Site, simply click on edit button at the bottom of the page. This will open an editor with a toolbar pallette with options.
To create a link to a new page,...
File Format
The preferable input file format is wav, 44.1 kHz sampling rate, 1 or 2 chan. However, PsySound3 accepts many other file formats (which are converted to wav by the program prior to...
What is Calibration?
Calibration used to establish the sound pressure level of a sound recording.
Why Calibrate?
For some analyses this can be very important, and for some it is irrelevant. This...
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Overview
This analyser implements many of the features of PsySound2, using code adapted from PsySound2 (originally written in Pascal). The most important of the models implemented is Moore,...
A current BETA release is available at the google group for PsySound3.
http://groups.google.com.au/group/psysound3
You can sign in and add yourself to the group to download the software. You can...
Release Plan
We are currently planning to continue releasing the program via Assembla, and not providing a fixed release until further testing and development.
10th International Conference on...
Overview
This analyser implements the virtual pitch algrorithm of Ernst Terhardt et al (1982), followed by analysis parameters described in part by Richard Parncutt (1989). It is very similar to...
Overview
Praat is a free sound analysis program, available from www.praat.org. This analyser drives Praat analysis (the Praat code is included in the PsySound3 download), so that analysis can be...
Overview
The revised low-frequency B-weighting (RLB) analyser implements a method of sound level measurement designed for the monitoring of broadcast audio level. RLB is similar to B-weighting,...
Overview
This analyser implements the roughness algorithm of Daniel and Weber (1997).
Code Authors
Key References
Aures, W. (1985). “Ein Berechnungsverfahren der Rauhigkeit.” Acustica 58:...
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Audio Analysers
Audio Analysers
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Overview
This analyser implements the features of a basic sound level meter. The algorithm is the same as that of a sound level meter: the audio is spectrally weighted (A, B, C, Z), rectified, and...
Overview
This analyser implements the SWIPE pitch estimation algorithm of Arturo Camacho. The following text describes the algorithm in his words (based on a post to the Auditory List).
The...
Overview
This analyser implements the SWIPE' pitch estimation algorithm of Arturo Camacho. The following text describes the algorithm in his words (based on a post to the Auditory List).
The...
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A Wiki ([ˈwiː.kiː] <wee-kee> or [ˈwɪ.kiː] <wick-ey>) is a type of website that allows users to add, remove, or otherwise edit...
PsySound3 is software for the analysis of sound recordings using physical and psychoacoustical algorithms. It is an easy to use platform that does precise analysis using standard acoustical...
