Re: Audio editing (Matt Winn )


Subject: Re: Audio editing
From:    Matt Winn  <mwinn83@xxxxxxxx>
Date:    Tue, 18 Dec 2012 09:04:22 -0600
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

--047d7b10c8611d7bd304d121d0fe Content-Type: multipart/alternative; boundary=047d7b10c8611d7bd004d121d0fc --047d7b10c8611d7bd004d121d0fc Content-Type: text/plain; charset=ISO-8859-1 Abin, It may be easier to do this in a scriptable environment like Praat instead of Audition. I have attached a script that you can use in Praat to scale the intensities of all sounds in a folder to a selected level. If the sounds clip, it will alert you and offer you the option of decreasing your target intensity level. This way, you can prevent any clipping in the output files. In the end, you will have a folder full of normalized sounds and an info text file to let you know what changes were applied. None of the original sounds are altered. This is designed to use for a folder full of short sounds (i.e. words), and might not be ideal for longer sounds. It does not perform compression. Regarding naturalness - you should be aware that compression and (to a lesser extent) normalization actually decrease the naturalness of the signals by altering each of them in different ways. There are some inherent volume differences between some speech sounds (e.g. /s/ is louder than /f/, /a/ is louder than /u/), so normalizing levels for these sounds would decrease naturalness to some extent. Good luck, Matt On Mon, Dec 17, 2012 at 5:05 PM, Abin Kuruvilla Mathew < amat527@xxxxxxxx> wrote: > Dear All, > > I have a set of audio files (consonants and vowels) to be editied in Adobe > audition and was wondering to what extent and how much of Normalization > (RMS) and dynamic compression (if necessary) would be needed so that the > naturalness is preserved and clipping doesn't occur. > > kind regards, > Abin > > -- > Abin K. Mathew > Doctoral student > Department of Psychology (Speech Science) > Tamaki Campus, 261 Morrin Road, Glen Innes > The University of Auckland > Private Bag 92019 > Auckland- 1142 > New Zealand > Email: amat527@xxxxxxxx > > --047d7b10c8611d7bd004d121d0fc Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable <div><p class=3D"MsoNormal" style=3D"margin-bottom:0in;margin-bottom:.0001p= t;line-height:normal"><font class=3D"Apple-style-span" face=3D"Arial, sans-= serif" size=3D"3"></font></p><p class=3D"MsoNormal" style=3D"margin-bottom:= 0in;margin-bottom:.0001pt;line-height:normal"> <font class=3D"Apple-style-span" face=3D"Arial, sans-serif" size=3D"3"><spa= n style=3D"font-size:12.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&= quot;;color:black">Abin,</span></font></p><font class=3D"Apple-style-span" = face=3D"Arial, sans-serif" size=3D"3"> <p class=3D"MsoNormal" style=3D"margin-bottom:0in;margin-bottom:.0001pt;lin= e-height:normal"><span style=3D"font-size:12.0pt;font-family:&quot;Arial&qu= ot;,&quot;sans-serif&quot;;color:black">It may be easier to do this in a scriptable environment like Praat instead of Audition. I have attached a script that you can use in Praat to scale the intensities of all sounds in a folder to a selected level. If the sounds clip, it will alert y= ou and offer you the option of decreasing your target intensity level. This wa= y, you can prevent any clipping in the output files. In the end, you will have= a folder full of normalized sounds and an info text file to let you know what= changes were applied. None of the original sounds are altered.</span></p> <p class=3D"MsoNormal" style=3D"margin-bottom:0in;margin-bottom:.0001pt;lin= e-height:normal"><span style=3D"font-size:12.0pt;font-family:&quot;Arial&qu= ot;,&quot;sans-serif&quot;;color:black">This is designed to use for a folder full of short sounds (i.e. words), and might not be ideal for longer sounds. It does not perform compression.=A0</span></p> <p class=3D"MsoNormal" style=3D"margin-bottom:0in;margin-bottom:.0001pt;lin= e-height:normal"><span style=3D"font-size:12.0pt;font-family:&quot;Arial&qu= ot;,&quot;sans-serif&quot;;color:black">=A0</span></p> <p class=3D"MsoNormal" style=3D"margin-bottom:0in;margin-bottom:.0001pt;lin= e-height:normal"><span style=3D"font-size:12.0pt;font-family:&quot;Arial&qu= ot;,&quot;sans-serif&quot;;color:black">Regarding naturalness - you should be aware that compression and (to a lesser extent) normalization actually decrease the naturalness of the signals by altering each of them i= n different ways. There are some inherent volume differences between some spe= ech sounds (e.g. /s/ is louder than /f/, /a/ is louder than /u/), so normalizin= g levels for these sounds would decrease naturalness to some extent.=A0</span= ></p> <p class=3D"MsoNormal" style=3D"margin-bottom:0in;margin-bottom:.0001pt;lin= e-height:normal"><span style=3D"font-size:12.0pt;font-family:&quot;Arial&qu= ot;,&quot;sans-serif&quot;;color:black"><br> <br> </span></p> <p class=3D"MsoNormal" style=3D"margin-bottom:0in;margin-bottom:.0001pt;lin= e-height:normal"><span style=3D"font-size:12.0pt;font-family:&quot;Arial&qu= ot;,&quot;sans-serif&quot;;color:black">Good luck,</span></p> <p class=3D"MsoNormal" style=3D"margin-bottom:0in;margin-bottom:.0001pt;lin= e-height:normal"><span style=3D"font-size:12.0pt;font-family:&quot;Arial&qu= ot;,&quot;sans-serif&quot;;color:black">Matt</span></p></font><p></p><br><d= iv class=3D"gmail_quote"> On Mon, Dec 17, 2012 at 5:05 PM, Abin Kuruvilla Mathew <span dir=3D"ltr">&l= t;<a href=3D"mailto:amat527@xxxxxxxx" target=3D"_blank">amat527@xxxxxxxx= cklanduni.ac.nz</a>&gt;</span> wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p= x #ccc solid;padding-left:1ex">Dear All,<div><br></div><div>I have a set of= audio files (consonants and vowels) to be editied in Adobe audition and wa= s wondering to what extent and how much of Normalization (RMS) and dynamic = compression (if necessary) would be needed so that the naturalness is prese= rved and clipping doesn&#39;t occur.</div> <div><br></div><div>kind regards,</div><div>Abin<span><font color=3D"#88888= 8"><br clear=3D"all"><div><br></div>-- <br><div style=3D"line-height:17px;c= olor:rgb(42,42,42);font-size:13px;font-family:&quot;Segoe UI&quot;,Tahoma,V= erdana,Arial,sans-serif"> Abin K. Mathew</div><div style=3D"line-height:17px;color:rgb(42,42,42);font= -size:13px;font-family:&quot;Segoe UI&quot;,Tahoma,Verdana,Arial,sans-serif= ">Doctoral student</div><div style=3D"line-height:17px;color:rgb(42,42,42);= font-size:13px;font-family:&quot;Segoe UI&quot;,Tahoma,Verdana,Arial,sans-s= erif"> Department of Psychology (Speech Science)</div><div style=3D"line-height:17= px;color:rgb(42,42,42);font-size:13px;font-family:&quot;Segoe UI&quot;,Taho= ma,Verdana,Arial,sans-serif"><div>Tamaki Campus, 261 Morrin Road, Glen Inne= s</div> <div>The University of Auckland</div><div>Private Bag 92019</div><div>Auckl= and- 1142</div><div>New Zealand</div><div>Email: <a href=3D"mailto:amat527@xxxxxxxx= aucklanduni.ac.nz" target=3D"_blank">amat527@xxxxxxxx</a>=A0</div>= </div> <br> </font></span></div> </blockquote></div><br></div> --047d7b10c8611d7bd004d121d0fc-- --047d7b10c8611d7bd304d121d0fe Content-Type: text/plain; charset=US-ASCII; name="Scale_intensity_of_all_sounds_check_maxima_v2.txt" Content-Disposition: attachment; filename="Scale_intensity_of_all_sounds_check_maxima_v2.txt" Content-Transfer-Encoding: base64 X-Attachment-Id: f_hav5r4t20 IyMgU2NhbGUgaW50ZW5zaXR5IGZvIGFsbCBzb3VuZHMgaW4gYSBEaXJlY3RvcnkNCiMjIyMjIENo ZWNrIGZvciBjbGlwcGVkIGV4dHJlbWENCg0KIyMgTWF0dGhldyBCLiBXaW5uDQojIyBEZWNlbWJl ciAyMDEyDQoNCiMjIE5PVEU6IEl0IGhlbHBzIHRvIGhhdmUgdGhlIFByYWF0IGluZm8gd2luZG93 IG9wZW4gYXMgeW91IHJ1biB0aGlzIHNjcmlwdCwNCiMjIyMjIyBhcyBpdCB3aWxsIHVwZGF0ZSBp bmZvIGZvciB5b3UgYXMgaXQgcHJvY2VlZHMuIA0KDQojIyBPbmNlIHRoZSBzY3JpcHQgaXMgZG9u ZSBhbmQgeW91IGNob29zZSB0byBzYXZlIHRoZSBmaWxlcywgDQojIyMjIExvb2sgaW4gdGhlIG9y aWdpbmFsIHNvdW5kIGRpcmVjdG9yeSAtIHRoZXJlIHlvdSB3aWxsIGZpbmQgYSBuZXcgc3ViLWZv bGRlciBvZiBub3JtYWxpemVkIHNvdW5kcy4gDQoNCmZvcm0gSW5wdXQgRW50ZXIgc3BlY2lmaWNh dGlvbnMgZm9yIEludGVuc2l0eSBzY2FsaW5nDQogICAgY29tbWVudCBFbnRlciBkZXNpcmVkIGlu dGVuc2l0eSAoZEIpOg0KICAgIAlyZWFsIGludGVuc2l0eSA3NQ0KICAgIGNvbW1lbnQgRW50ZXIg ZGlyZWN0b3J5IHdoZXJlIHRoZSBPUklHSU5BTCBzb3VuZCBmaWxlcyB3aWxsIGJlIHJldHJpZXZl ZDoNCiAgICAJc2VudGVuY2Ugc291bmREaXIgQzpcRW50ZXItWW91ci1EaXJlY3RvcnktSGVyZQ0K ICAgIGNvbW1lbnQgRW50ZXIgZmlsZW5hbWUgdG8gd2hpY2ggdGhlIGluZm8gc2hvdWxkIGJlIHdy aXR0ZW4NCiAgICAJc2VudGVuY2Ugb3V0RmlsZSBpbnRlbnNpdHlfaW5mby50eHQNCmVuZGZvcm0N Cg0KDQoNCmNhbGwgY2hhbmdlSW50ZW5zaXRpZXMNCg0KDQpwcm9jZWR1cmUgY2hhbmdlSW50ZW5z aXRpZXMNCgljbGVhcmluZm8NCgljbGlwcGVkU291bmRzID0gMA0KDQoJIyBSZWFkcyBpbiBhIGxp c3Qgb2YgZmlsZXMNCglDcmVhdGUgU3RyaW5ncyBhcyBmaWxlIGxpc3QuLi4gbGlzdCAnc291bmRE aXIkJ1wqLndhdg0KCW51bWJlck9mRmlsZXMgPSBHZXQgbnVtYmVyIG9mIHN0cmluZ3MNCg0KCWZv ciBpZmlsZSB0byBudW1iZXJPZkZpbGVzDQoJICAgc2VsZWN0IFN0cmluZ3MgbGlzdA0KCSAgICAg IGZpbGVOYW1lJCA9IEdldCBzdHJpbmcuLi4gaWZpbGUNCgkgICAgICBuYW1lJCA9IGZpbGVOYW1l JCAtICIud2F2Ig0KDQoJCSMgUmVhZHMgaW4gYWxsIHNvdW5kICh3YXYpIGZpbGVzDQoJCVJlYWQg ZnJvbSBmaWxlLi4uICdzb3VuZERpciQnXCduYW1lJCcud2F2DQoNCgkJb2xkX0ludCA9IEdldCBp bnRlbnNpdHkgKGRCKQ0KCQkJcHJpbnQgJ25hbWUkJyBpbnRlbnNpdHkgd2FzICdvbGRfSW50OjIn ICAgDQoNCgkJU2NhbGUgaW50ZW5zaXR5Li4uICdpbnRlbnNpdHknDQoJCWludF9kaWZmID0gJ2lu dGVuc2l0eScgLSAnb2xkX0ludCcNCgkJCXByaW50IGFuZCB3YXMgY2hhbmdlZCBieSAnaW50X2Rp ZmY6MicgdG8gcmVhY2ggJ2ludGVuc2l0eToyJyAndGFiJCcNCg0KCQltYXggPSBHZXQgYWJzb2x1 dGUgZXh0cmVtdW0uLi4gMCAwIFNpbmM3MA0KCQlpZiBtYXggPj0gMQ0KCQkJY2xpcHBlZFNvdW5k cyA9IGNsaXBwZWRTb3VuZHMgKyAxDQoJCQlwcmludCBDTElQUEVEDQoJCWVuZGlmDQoJCQ0KCQlw cmludCAnbmV3bGluZSQnDQoNCgllbmRmb3INCg0KCWNhbGwgdXNlclNlbGVjdFNhdmUNCmVuZHBy b2MNCg0KcHJvY2VkdXJlIHVzZXJTZWxlY3RTYXZlDQoJY2hvaWNlID0gMQ0KDQogICBiZWdpblBh dXNlICgiJ2NsaXBwZWRTb3VuZHMnIHNvdW5kcyBoYXZlIGJlZW4gY2xpcHBlZCIpDQogICAJY29t bWVudCAoIidjbGlwcGVkU291bmRzJyBzb3VuZHMgaGF2ZSBiZWVuIGNsaXBwZWQiKQ0KCWNvbW1l bnQgKCJEbyB5b3Ugd2FudCB0byBzYXZlIHRoZSBmaWxlcz8iKQ0KICAgICAgIG9wdGlvbk1lbnUg KCJDaG9pY2UiLCBjaG9pY2UpDQogICAgICAgICAgb3B0aW9uICgiWWVzIC0gc2F2ZSB0aGUgc291 bmRzIikNCiAgICAgICAgICBvcHRpb24gKCJObyAtIFF1aXQiKQ0KICAgICAgICAgIG9wdGlvbiAo Ikxvd2VyIGxldmVsIGJ5IDEgZEIgYW5kIHRyeSBhZ2FpbiIpDQogICAgICAgICAgb3B0aW9uICgi TG93ZXIgbGV2ZWwgYnkgMiBkQiBhbmQgdHJ5IGFnYWluIikNCiAgICAgICAgICBvcHRpb24gKCJM b3dlciBsZXZlbCBieSAzIGRCIGFuZCB0cnkgYWdhaW4iKQ0KICAgICAgICAgIG9wdGlvbiAoIkxv d2VyIGxldmVsIGJ5IDQgZEIgYW5kIHRyeSBhZ2FpbiIpDQogICAgICAgICAgb3B0aW9uICgiTG93 ZXIgbGV2ZWwgYnkgNSBkQiBhbmQgdHJ5IGFnYWluIikNCg0KICAgICAgIGNvbW1lbnQgKCJUaGVu IGNsaWNrIENvbnRpbnVlLiIpDQoNCmVuZFBhdXNlICgiQ29udGludWUiLCAxKQ0KIAlpZiBjaG9p Y2UgPSAxDQogCQljYWxsIHNhdmVTb3VuZHMNCg0KIAllbHNpZiBjaG9pY2UgPSAyDQogCQlzZWxl Y3QgYWxsDQogCQlSZW1vdmUNCiAJZWxzZQ0KIAkgCXNlbGVjdCBhbGwNCiAJCVJlbW92ZQ0KCSAJ aW50ZW5zaXR5ID0gaW50ZW5zaXR5LShjaG9pY2UtMikNCgkgCWNhbGwgY2hhbmdlSW50ZW5zaXRp ZXMNCgllbmRpZg0KZW5kcHJvYw0KDQpwcm9jZWR1cmUgc2F2ZVNvdW5kcw0KCSMgbWFrZXMgYSBk aXJlY3RvcnkNCglzeXN0ZW0gbWtkaXIgJ3NvdW5kRGlyJCdcSW50ZW5zaXR5J2ludGVuc2l0eScN Cg0KCSMgZmlyc3QgZGVsZXRlcyBhbnkgZXhpc3Rpbmcgb3V0cHV0IGZpbGUNCgkJZmlsZWRlbGV0 ZSAnc291bmREaXIkJ1wnb3V0RmlsZSQnDQoNCgkjIGNyZWF0ZXMgc2ltcGxlIGhlYWRlcgkJDQoJ CWZpbGVhcHBlbmQgU3RlcCAndGFiJCcgRHVyYXRpb24gJ3RhYiQnICduZXdsaW5lJCcNCg0KCWZv ciBpZmlsZSB0byBudW1iZXJPZkZpbGVzDQoJICAgc2VsZWN0IFN0cmluZ3MgbGlzdA0KCSAgICAg IGZpbGVOYW1lJCA9IEdldCBzdHJpbmcuLi4gaWZpbGUNCgkgICAgICBuYW1lJCA9IGZpbGVOYW1l JCAtICIud2F2Ig0KCQlzZWxlY3QgU291bmQgJ25hbWUkJw0KCQlTYXZlIGFzIFdBViBmaWxlLi4u ICdzb3VuZERpciQnXEludGVuc2l0eSdpbnRlbnNpdHknXCduYW1lJCcud2F2DQoJZW5kZm9yDQoN Cg0KCWNhbGwgc2F2ZUluZm9XaW5kb3cgIidzb3VuZERpciQnXEludGVuc2l0eSdpbnRlbnNpdHkn IiBJbnRlbnNpdHlJbmZvDQoNCnNlbGVjdCBTdHJpbmdzIGxpc3QNClJlbW92ZQ0KZW5kcHJvYw0K DQpwcm9jZWR1cmUgc2F2ZUluZm9XaW5kb3cgb3V0cHV0RGlyZWN0b3J5JCBvdXRwdXRGaWxlTmFt ZSQNCglmaWxlZGVsZXRlICdvdXRwdXREaXJlY3RvcnkkJ1wnb3V0cHV0RmlsZU5hbWUkJy50eHQN CglmYXBwZW5kaW5mbyAnb3V0cHV0RGlyZWN0b3J5JCdcJ291dHB1dEZpbGVOYW1lJCcudHh0DQpl bmRwcm9jDQoNCiMgIyAjIyAjIyMgIyMjIyMgIyMjIyMjIyMgIyMjIyMjIyMjIyMjIyAjIyMjIyMj IyMjIyMjIyMjIyMjIyMgIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIw== --047d7b10c8611d7bd304d121d0fe--


This message came from the mail archive
/var/www/postings/2012/
maintained by:
DAn Ellis <dpwe@ee.columbia.edu>
Electrical Engineering Dept., Columbia University