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[f0_time,f0_value,SHR,f0_cand... SHRP - a pitch determination algorithm based on Subharmonic-to-Harmonic Ratio (SHR)
[y,num_corrected]=destepfilte... [y,num_corrected]=destepfilter(x,f0_range,hz_or_st)
[y]=linsmooth(x,n,wintype) linsmooth(x,wintype,n) : linear smoothing
medsmooth(x,L) y = medsmooth(x,L) Median smoothing filter.
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4.1 | 19 ratings Rate this file 62 Downloads (last 30 days) File Size: 9.24 KB File ID: #1230

Pitch Determination Algorithm

11 Jan 2002 (Updated 03 Jan 2008)

Extract pitch of speech signal based on subharmonic-to-harmonic ratio

File Information

Description

Pitch determination and voice quality analysis using subharmonic-to-harmonic ratio.

There are also some post-processing routines available, such as de-step filter, median filter, and linear filter. For more information, please see http://www.speakingx.com/blog/2008/01/02/pitch-determination

MATLAB release

MATLAB 6.0 (R12)

Tags for This File
Everyone's Tags	audio processing(5), fundamental frequency(4), how to play(3), maximum value, pitch(4), quality analysis, speech signal(2), video processing
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Comments and Ratings (23)
12 May 2003	ELOUAHABI Aboubaker
10 Jul 2003	chenchu gurappa
10 Dec 2003	Suman Bhattacharya	I will use it first.
21 Feb 2004	gaurav dalwadi
22 Feb 2004	benamar beloufa	matlab program for median filter and center weight median filter
11 Mar 2004	Paul Bagshaw	Nice de-step filter ! Many thanks to Xuejing Sun for implementing the algorithm in Matlab and for acknowledging its origins.
03 Nov 2004	Eko Setijadi	Very Goods
28 Apr 2005	eko yudhawan	good
10 May 2005	nur muhammad harun	good
14 Jun 2005	Saleem Mohammad	Very Good
02 Nov 2005	venky kannan
02 Jul 2006	Byoung-ho Kwon
02 Oct 2006	Muharram Mansoorizadeh	Would you please cite or attach the backgroud material for the algorithm used ?
21 Dec 2006	Tinkerbell White	hi all how do i test the codes?
19 Feb 2007	mohammad amin shoaie	I needed a refrence to check my own results and that could be helpful
22 Apr 2007	Dan Sun
31 Jul 2007	h jf	it is what i want
16 Nov 2007	x y
04 Jan 2008	kusuma wardana
21 Nov 2008	Eric	very clever pitch extractor. works better than any i have seen.
21 Jul 2009	Alfian Abdul Halin
28 Sep 2009	delinda he	Thanks. Works good
01 Nov 2010	Hye Young	HOW TO PLAY??

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Updates
16 Jan 2002	Fixed a bug and made some other minor changes. Evaluation results show the performance is improved.
30 May 2002	Some changes of Copyright notice.
03 Jan 2008	New link to the algorithm as the old link is broken