Sixth International Conference on Spoken Language Processing
(ICSLP 2000)

Beijing, China
October 16-20, 2000

Auditory Perception of Amplitude Modulated Sinusoid Using a Pure Tone and Band-Limited Noises as Modulation Signals

Mamoru Iwaki

Graduate School of Science and Technology, Niigata University, Japan

Frequency selectivity in amplitude modulated sound have been reported in terms of modulation threshold level for amplitude-modulation detection, where a pink or white noise carrier was modulated with a sinusoid and band-limited white noise, which showed similar band-pass type masking characteristics. Such previous studies treated band limited white noise carriers. In this paper, an amplitude-modulation detection level is measured in the case of sinusoidal carrier. The obtained characteristics are similar to those for pink or white noise carriers; the detection level increases around 16Hz when the 1000Hz sinusoidal carrier is modulated by 16Hz pure tone and band-limited white noise, and the increase is localized around 16Hz within 1 to 1.5 octave wide.


Full Paper

Bibliographic reference.  Iwaki, Mamoru (2000): "Auditory perception of amplitude modulated sinusoid using a pure tone and band-limited noises as modulation signals", In ICSLP-2000, vol.3, 610-613.