Introduction
This demonstration estimates the sound pressure at which a tone becomes audible in noise under three presentation conditions.
A sample of binauural noise is presented, followed by the same noise with tones presented: a) homophasically - identically to the two ears, b) monaurally - to the left ear alone, and c) antiphasically - with 180 degree phase shift from one ear to the other. The level of the tone can be increased or decreasedl. Either identical or uncorrelated noise can be presented to the two ears. The noise level and the frequency of the tone may be important parmeters.
When you listen with only your left ear, the thresholds of all three tonal presentations should be the same. With only your right ear, no tone should be heard during the first and third bursts. The tones should be audible during the second and fourth burst.
When you listen with both ears, the relative thresholds for the three tone presentation conditions will vary depending on type of noise presentation, noise level, and tone frequency.
This demonstration estimates the sound pressure at which a tone becomes audible in noise under three presentation conditions.
A sample of binauural noise is presented, followed by the same noise with tones presented: a) homophasically - identically to the two ears, b) monaurally - to the left ear alone, and c) antiphasically - with 180 degree phase shift from one ear to the other. The level of the tone can be increased or decreasedl. Either identical or uncorrelated noise can be presented to the two ears. The noise level and the frequency of the tone may be important parmeters.
When you listen with only your left ear, the thresholds of all three tonal presentations should be the same. With only your right ear, no tone should be heard during the first and third bursts. The tones should be audible during the second and fourth burst.
When you listen with both ears, the relative thresholds for the three tone presentation conditions will vary depending on type of noise presentation, noise level, and tone frequency.
Instructions
Choose the method of presenting noise, then click begin.
Choose the method of presenting noise, then click begin.
Parameters
Noise
Hz - Sample Rate
dB SPL - Calibration
Hz - Tone Frequency
dB SPL - Initial Tone Level
dB SPL - Noise Level
dB - Level Increment