THE AUDITORY MODELING TOOLBOX
sig_marquardt2009 - Tone masked by delayed inner-band noise(s) with constant ITD and two antiphasic flanking-band noises
Usage:
stimulus = sig_marquardt2009(c_innerbw,c_flanking_phase,c_noise_mode,c_tone_level,c_itd,c_sphase,fs,dur,cos_rise_time,bw,fc,spl)
Input parameters:
| c_innerbw | bandwidth of diotic inner-band noise centered at target tone frequency (in Hz) |
| c_flanking_phase | IPD of flanking-band noises |
| c_noise_mode | 1 for a single-delayed noise, 2 for opposingly delayed noises (known as double-delayed noise) |
| c_tone_level | tone sound pressure level (in dB) |
| c_itd | interaural time difference(s) of the inner-band noise (in s) |
| c_sphase | IPD of the target tone |
| fs | sampling rate (in Hz) |
| dur | duration of stimulus (in s) |
| cos_rise_time | duration of the cosine ramp at start and end of signal (in s) |
| bw | overall bandwidth of stimulus (in Hz) |
| fc | center frequency of inner band and the target tone (in Hz) |
| spl | spectral sound pressure level of noise (in dB) |
Description:
sig_marquardt2009 creates a tone masked by either a single delayed narrow-band noise or two opposingly delayed noises (known as double-delayed noise) with a constand ITD. That narrowband noise is additionally superimposed to two antiphasic flanking-band noises.
References:
T. Marquardt and D. McAlpine. Masking with interaurally “double-delayed” stimuli: The range of internal delays in the human brain. The Journal of the Acoustical Society of America, 126(6):EL177--EL182, 11 2009. [ DOI | arXiv | http ]
B. Eurich, J. Encke, S. D. Ewert, and M. Dietz. Lower interaural coherence in off-signal bands impairs binaural detection. The Journal of the Acoustical Society of America, 151(6):3927--3936, 06 2022. [ DOI | .pdf ]
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