Title
A Modulation Property Of Time-Frequency Derivatives Of Filtered Phase And Its Application To Aperiodicity And F(O) Estimation
Abstract
We introduce a simple and linear SNR (strictly speaking. periodic to random power ratio) estimator (0 dB to 80 dB without additional calibration/linearization) for providing reliable descriptions of aperiodicity in speech corpus. The main idea of this method is to estimate the background random noise level without directly extracting the background noise. The proposed method is applicable to a wide variety of time windowing functions with very low sidelobe levels. The estimate combines the frequency derivative and the time-frequency derivative of the mapping from filter center frequency to the output instantaneous frequency. This procedure can replace the periodicity detection and aperiodicity estimation subsystems of recently introduced open source vocoder, YANG vocoder. Source code of MAT LAB implementation of this method will also be open sourced.
Year
DOI
Venue
2017
10.21437/Interspeech.2017-436
18TH ANNUAL CONFERENCE OF THE INTERNATIONAL SPEECH COMMUNICATION ASSOCIATION (INTERSPEECH 2017), VOLS 1-6: SITUATED INTERACTION
Keywords
DocType
Volume
speech analysis, fundamental frequency, aperiodicity, instantaneous frequency, group delay
Conference
abs/1706.02964
ISSN
Citations 
PageRank 
2308-457X
0
0.34
References 
Authors
9
5
Name
Order
Citations
PageRank
Hideki Kawahara11188122.01
Ken-Ichi Sakakibara2117.20
Masanori Morise326028.86
Hideki Banno45712.86
Tomoki Toda51874167.18