Subject: Re: Robust method of fundamental frequency estimation. From: Roisin Loughran <roisinaud@xxxxxxxx> Date: Mon, 5 Feb 2007 16:44:30 +0000 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>--0-720523618-1170693870=:60526 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Dear list,=0A=0AI would like to take this opportunity to thank everyone who= has replied to my question over the last week. I greatly appreciate all yo= ur recommendations and am currently working my way through your suggestions= . The discussions that have been raised have shown me that this is a more c= omplex issue than I initially suspected, and I need to decide exactly what = I hope to achieve from my analysis - particularly to distinguish between pe= rceptual features and pure mathematical data - before delving any further. = I appreciate the time taken by those of you who replied and hope to thank y= ou personally in the future - I'm swamped by the response that I've got.=0A= =0AOn the one hand I'm delighted to have raised such a complex topic that h= as sparked so many responses and discussions between such experts as yourse= lves. On the other, it'd great if there was an algorithm whereby sound in g= ives F0 out....if I happen to develop one any time soon I'll be sure to let= you all know!=0A=0AThanks again,=0ARoisin=0A=0A=0A----- Original Message -= ---=0AFrom: Roisin Loughran <roisinaud@xxxxxxxx>=0ATo: AUDITORY@xxxxxxxx= GILL.CA=0ASent: Wednesday, 31 January, 2007 5:11:52 PM=0ASubject: [AUDITORY= ] Robust method of fundamental frequency estimation.=0A=0ADear list,=0A=0AI= was wondering if any of you know the most robust way to calculate the fund= amental frequency of a note across the range of a variety of instruments?= =0A=0AI'm currently working on a matlab program and have tried using the au= to-correlation method and the cepstrum method but have found that these bot= h have difficulty in calculating f0 of timbre-rich tones such as those from= a piano - particularly in the lower pitch ranges. Does anyone know of a me= thod that is more reliable in these regions or is it necessary that I inves= tigate such complex tones by a different means? From examining a number of = the FFTs from these signals it is tempting to just pick the first strongest= partial - the complex overtones just seem to confuse the more complicated = algorithms, but I realise that this is hardly a=0A reliable approach.=0A=0A= Any suggestion would be greatly appreciated,=0AThanks in advance,=0A=0ARois= in Loughran=0A=0A=0A=0A=0A=09=09 =0ANew Yahoo! Mail is the ultimate force i= n competitive emailing. Find out more at the Yahoo! Mail Championships. Plu= s: play games and win prizes.=0A=0A=0A=0A=0A=0A=09=0A=09=0A=09=09=0A_______= ____________________________________________________ =0ANew Yahoo! Mail is = the ultimate force in competitive emailing. Find out more at the Yahoo! Mai= l Championships. Plus: play games and win prizes. =0Ahttp://uk.rd.yahoo.com= /evt=3D44106/*http://mail.yahoo.net/uk --0-720523618-1170693870=:60526 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable <html><head><style type=3D"text/css"><!-- DIV {margin:0px;} --></style></he= ad><body><div style=3D"font-family:times new roman, new york, times, serif;= font-size:12pt"><div style=3D"font-family: times new roman,new york,times,s= erif; font-size: 12pt;">Dear list,<br><br>I would like to take this opportu= nity to thank everyone who has replied to my question over the last week. I= greatly appreciate all your recommendations and am currently working my wa= y through your suggestions. The discussions that have been raised have show= n me that this is a more complex issue than I initially suspected, and I ne= ed to decide exactly what I hope to achieve from my analysis - particularly= to distinguish between perceptual features and pure mathematical data - be= fore delving any further. I appreciate the time taken by those of you who r= eplied and hope to thank you personally in the future - I'm swamped by the = response that I've got.<br><br>On the one hand I'm delighted to have raised= such a complex topic that has sparked so many responses and discussions between such expe= rts as yourselves. On the other, it'd great if there was an algorithm where= by sound in gives F0 out....if I happen to develop one any time soon I'll b= e sure to let you all know!<br><br>Thanks again,<br>Roisin<br><br><br><div = style=3D"font-family: times new roman,new york,times,serif; font-size: 12pt= ;">----- Original Message ----<br>From: Roisin Loughran <roisinaud@xxxxxxxx= .CO.UK><br>To: AUDITORY@xxxxxxxx<br>Sent: Wednesday, 31 January, = 2007 5:11:52 PM<br>Subject: [AUDITORY] Robust method of fundamental frequen= cy estimation.<br><br><div style=3D"font-family: times new roman,new york,t= imes,serif; font-size: 12pt;"><div>Dear list,<br><br>I was wondering if any= of you know the most robust way to calculate the fundamental frequency of = a note across the range of a variety of instruments?<br><br>I'm currently w= orking on a matlab program and have tried using the auto-correlation method= and the cepstrum method but have found that these both have difficulty in calculating f0 of= timbre-rich tones such as those from a piano - particularly in the lower p= itch ranges. Does anyone know of a method that is more reliable in these re= gions or is it necessary that I investigate such complex tones by a differe= nt means? From examining a number of the FFTs from these signals it is temp= ting to just pick the first strongest partial - the complex overtones just = seem to confuse the more complicated algorithms, but I realise that this is= hardly a=0A reliable approach.<br><br>Any suggestion would be greatly appr= eciated,<br>Thanks in advance,<br><br>Roisin Loughran<br></div></div><br>= =0A=09=09<hr size=3D"1"> =0ANew Yahoo! Mail is the ultimate force in compet= itive emailing. Find out more at the <a rel=3D"nofollow" target=3D"_blank" = href=3D"http://uk.rd.yahoo.com/mail/uk/taglines/default/championships/games= /*http://uk.rd.yahoo.com/evt=3D44106/*http://mail.yahoo.net/uk/">Yahoo! Mai= l Championships</a>. Plus: play games and win prizes.</div><br></div></div>= <br>=0A=09=09<hr size=3D1> =0A<a href=3D"http://us.rd.yahoo.com/mail/uk/tag= lines/default/nowyoucan/spamguard/*http://us.rd.yahoo.com/evt=3D40565/*http= ://uk.docs.yahoo.com/nowyoucan.html">All New Yahoo! Mail</a> =96 Tired of u= nwanted email come-ons? Let our SpamGuard protect you.</body></html> --0-720523618-1170693870=:60526--