Phase relationships and amplitude envelopes in auditory perception

Autor:	J.M. Kates, E. Lindemann
Rok vydání:	2003
Předmět:	Physics Auditory perception Critical band Amplitude medicine.anatomical_structure Quantitative Biology::Neurons and Cognition Acoustics medicine Phase (waves) Pulse wave Psychoacoustics Hair cell Envelope (waves)
Zdroj:	Proceedings of the 1999 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics. WASPAA'99 (Cat. No.99TH8452).
DOI:	10.1109/aspaa.1999.810890
Popis:	The firing rate of an inner hair cell depends on the amplitude envelope in the associated critical band. Phase relationships between clusters of sinusoids in a critical band affect this envelope. This means that sounds with identical magnitude spectra can result in different firing patterns. This may explain why a pulse train, modeled as a sum of equal amplitude cosines, sounds different than a sum of equal amplitude sinusoids with random initial phase. We demonstrate the effect on firing rate by using a time-domain digital cochlear model. We speculate about other psychoacoustic consequences of phase relationships and amplitude envelopes and their effect on firing rates.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f707a9aef2dad09fa05fa8488343fa3a https://doi.org/10.1109/aspaa.1999.810890 Zobrazit plný text záznamu