Unit 7. Audition and Speech

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Description:

How do we recognize the source of a sound texture, such as the sound of insects or waves? Josh McDermott and colleagues propose a model of this process that uses statistics of the frequency content of the sounds, and the modulation of this content over time, depicted in these spectrograms (bottom) and plots of modulation power (top).

Alt text:
Two pairs of plots, x-axis=modulation channel and y-axis=cochlear channel, showing differences between the sounds of insects and waves.
Caption:
How do we recognize the source of a sound texture, such as the sound of insects or waves? Josh McDermott and colleagues propose a model of this process that uses statistics of the frequency content of the sounds, and the modulation of this content over time, depicted in these spectrograms (bottom) and plots of modulation power (top).
Two pairs of plots, x-axis=modulation channel and y-axis=cochlear channel, showing differences between the sounds of insects and waves.

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