Acoustics

This software can be used for recording and analysis of analog voltage, sound and acceleration signals both in time and frequency domain.
567.0 次下载
更新时间 2021/5/12

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The software was designed to be applied during lectures, when live measurements have to be performed quickly without having to access submenues. All parameters are visible and can be changed in the GUI.
Following functions are just a selection of what can be done with this tool. For more information read the manual.
-Simultaneous recording of 4 channels: voltage, sound or acceleration signals
-Supported hardware: windows sound cards, National Instruments devices (see manual)
-Calculation of sound pressure, particle velocity, rms value, SPL
-Generation of sine or sawtooth signals, signal with several partials, white noise, chirp, gaussian pulses, rectangular pulses
-Continuous or single DAQ
-FFT analysis, third octave, octave band analysis
-Noise correction
-Frequency response
-Spectrogram
-Insertion or transmission loss
-Different types of averaging
-Save results to Excel or MATLAB files
-Import and compare MATLAB or wav files

引用格式

Stephan Pitsch (2024). Acoustics (https://www.mathworks.com/matlabcentral/fileexchange/75360-acoustics), MATLAB Central File Exchange. 检索来源 .

MATLAB 版本兼容性
创建方式 R2018b
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平台兼容性
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版本 已发布 发行说明
2021.05.01

- Cut function was added
- Selected sections of a recorded signal can be analysed
- Start/Stop function was added to playback of sound files
- Background noise correction function was added
- Average function was added for DIL and DTL measurement

2020.07.06

New section definition and cut functions were added. Smaller bug fixes were done.

2020.07.01

New function was added: spectral centroidal frequency

2020.06.08

A bug in the partial detection function was fixed.

2020.06.05

Graphical toolbar was added in the analysis window

2020.05.26

"Attack" analysis function was added, e.g. now time transients of partials can be plotted and exported

2020.05.23

Following changes were made:
1. Bug fixes (wav-import, plot function)
2. Spectrogram can be saved in this new version
3. Partial detection added (pitch detection based on autocorrelation)
4. Signal generator (duration adjustable for all signals)

2020.05.13

The number of selectable audio input channels was increased to 5 (instead of 3).

2019.08.0

The version number was changed to 2019.08.0.

08.2019.0