SPEECH PROCESSING APPARATUS, A SPEECH PROCESSING METHOD, AND A FILTER PRODUCED BY THE METHOD

摘要

According to one embodiment, a speech processing apparatus includes a histogram calculation unit, a cumulative frequency calculation unit, and a filter production unit. The histogram calculation unit is configured to calculate a first histogram from a first speech feature extracted from speech data, and to calculate a second histogram from a second speech feature different from the first speech feature. The cumulative frequency calculation unit is configured to calculate a first cumulative frequency by accumulating a frequency of the first histogram, and to calculate a second cumulative frequency by accumulating a frequency of the second histogram. The filter production unit is configured to produce a filter having a characteristic to get the second cumulative frequency near to the first cumulative frequency.