A new cochlear model based on adaptive gain mechanism

Autor:	Xugang Lu, Daowen Chen
Rok vydání:	1999
Předmět:	Artificial neural network Computer science Speech recognition Time constant Stimulation Speech processing Intensity (physics) Basilar membrane medicine.anatomical_structure Control theory otorhinolaryngologic diseases medicine Auditory system Hair cell Cochlea
Zdroj:	Lecture Notes in Computer Science ISBN: 9783540660699 IWANN (1)
Popis:	In this paper, a new nonlinear dynamic cochlear model is proposed based on I/O curve. The feedback path of cochlea is simulated by forward feedback model. Two time constants are used for two different adaptation mechanisms, one is used for cochlea adapting its gain from lower stimulation intensity to higher stimulation intensity, another is used for cochlea adapting its gain from higher stimulation intensity to lower stimulation intensity. Experimental results from psychology is used to fix this model parameters. With this model, forward masking effect can be predicted well, also nonlinear and dynamic characters of real auditory system can be predicted, such as nonlinear compression to different stimulation intensity, onset, off set etc.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bf8fa762945f6778ed5dcd159208eb6b https://doi.org/10.1007/bfb0098172 Zobrazit plný text záznamu