作者: Akihito Aiba , Junichi Takami
DOI:
关键词: Phase noise 、 Audio signal 、 Amplitude 、 Frame (networking) 、 Spectral line 、 Noise 、 Computer science 、 Noise floor 、 Amplitude distortion 、 Acoustics
摘要: A processing apparatus estimates a noise amplitude spectrum of included in sound signal. The includes an calculation part configured to calculate the signal for each one frames obtained from dividing into units time; and estimation estimate detected frame. first based on difference between calculated by frame occurring before is detected, second attenuation function spectra after detected.