# Anechoic Stimuli¶

## TU Berlin - Noise Stimuli¶

CC0, Public Domain Dedication

### Description¶

A 100 s train of Gaussian white noise pulses with a duration of 700 ms and a pause of 300 ms between each pulse is provided. The single pulses are independent white noise signals. They were windowed with a Hanning window of 20 ms length at their start and end. The resulting signal was band-pass filtered with a fourth order Butterworth filter between 125 Hz and 20000 Hz.

In addition, a 5.2 s train of pulsed pink noise with a duration of 800ms and a pause of 500 ms between each pulse is provided. Here, the single pulses are identical pink noise signals. They were windowed with a Hanning window of 50 ms length at their start and end.

### Files¶

stimuli/anechoic/aipa/pink_noise_pulse.wav
stimuli/anechoic/aipa/white_noise_pulse.wav


## Cologne University of Applied Sciences - Anechoic Recordings¶

Copyright (c) 2012 Michio Woirgardt, Philipp Stade, Jeffrey Amankwor, Benjamin Bernschütz, and Johannes Arend under Creative Commons Attribution-ShareAlike 3.0

### Description¶

The recordings of two Flamengo and two Pop/Blues pieces were done in the anechoic chamber of the Cologne University of Applied Sciences, Institute of Communication Engineering. The sampling rate of all files was changed from 48000 to 44100 Hertz. The original files are available at the university’s website.

### Files¶

stimuli/anechoic/fh-koeln/BluesA_GitL_44100.wav
stimuli/anechoic/fh-koeln/BluesA_GitR_44100.wav
stimuli/anechoic/fh-koeln/BluesA_Voc_44100.wav
stimuli/anechoic/fh-koeln/Flamenco1_U89_44100.wav
stimuli/anechoic/fh-koeln/Flamenco2_U89_44100.wav
stimuli/anechoic/fh-koeln/HellOfAGuy_GitL_44100.wav
stimuli/anechoic/fh-koeln/HellOfAGuy_GitR_44100.wav
stimuli/anechoic/fh-koeln/HellOfAGuy_Voc_44100.wav


## Instruments¶

### Description¶

Tiny collection of anechoic instrument recordings containing a castanet and a cello.

### Files¶

stimuli/anechoic/instruments/castanets.wav
stimuli/anechoic/instruments/cello.wav