# THE AUDITORY MODELING TOOLBOX

Applies to version: 1.1.0

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# sig_competingtalkers - Load one of several test signals

## Usage

s=sig_competingtalkers(signame);
[s,fs]=sig_competingtalkers(signame);


## Description

sig_competingtalkers(signame) loads one of several test signals consisting of competing talkers. All the talkers are taken from the TIMIT speech corpus https://doi.org/10.35111/17gk-bn40 and filtered by HRTFs recorded in the Oldenburg lab with a Bruel and Kjaer Type 4128C head and torso simulator (Kayser et al., 2009). An exception is 'one_speaker_reverb', see description below.

The signals have 2 channels and are provided with a sampling rate of 16 kHz.

[sig,fs]=sig_competingtalkers(signame) additionally returns the sampling frequency fs.

The parameter signame can be:

 'one_of_three' Talker spatialized at the azimuth angle of 30 degrees. 'two_of_three' Talker spatialized at the azimuth angle of 0 degrees. 'three_of_three' Talker spatialized at the azimuth angle of -30 degrees. 'one_speaker_reverb' Talker spatialized at horizontal position of 45 degrees by applying a binaural set of room impulse responses (BRIR) of an office room from a database recorded with hearing-aid microphones behind the ear. 'two_speakers' Two simultanous talkers spatialized at the azimuth angles of -30 and 30 degrees. 'five_speakers' Five simultanous talkers spatialized at the azimuth angles of -80, -30, 0, 30, and 80 degrees. 'bnoise' Speech-shaped binaural noise.

## Examples:

The following plot shows an estimate of the power spectral density of the first channels of the speech shaped noise:

s=sig_competingtalkers('bnoise');
pwelch(s(:,1),hamming(150));


This code produces the following output:

Model: sig_competingtalkers. Downloading auxiliary data: bnoise.wav
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