Subject: AW: 1. MP3 or AAC mixing in compressed/coded domain (2) From: #ARIJIT BISWAS# <arijit17@xxxxxxxx> Date: Mon, 2 Mar 2009 22:56:55 +0800 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>This is a multi-part message in MIME format. ------_=_NextPart_001_01C99B47.7038CCCB Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-NAIMIME-Disclaimer: 1 X-NAIMIME-Modified: 1 Or, use an approach something like this: http://www.idmt.fraunhofer.de/eng/business%20areas/schuller/aes_124_2008_= final.pdf =20 =20 =20 ________________________________ Von: AUDITORY - Research in Auditory Perception im Auftrag von Lorenzo Pi= cinali Gesendet: Mo 3/2/2009 11:46 An: AUDITORY@xxxxxxxx Betreff: 1. MP3 or AAC mixing in compressed/coded domain (2) Dear All, I'm not sure I've understood properly, but it seems to me that Sony Vegas is not a DAW, but a video editing software... It is plenty of audio editing and mixing software that can open MP3 or AAC (AC3) files, but what they do is they all convert the compressed files in an uncompressed PCM format, and then perform all the mixing and editing operation, and convert them back to the compressed format after the processing. This is fore sure a good method with short files, but having for example a ten ours MP3 stereo recording, on a normal PCM format would be nearly 10 Gb of data, therefore for mixing and editing directly in MP3, in this case, could be a very good idea. I'm not aware of any available software that directly mixes compressed files, but for the editing you could use http://mpesch3.de1.cc/ , which allows you to cut MP3 files and change the volume... A friend of mine has been working on a software for the mixing directly in compressed format (Dr. Giancarlo Vercellesi, you can find online some of his publications), and there are some software prototypes for this, but nothing available yet... Yours Lorenzo Picinali Lorenzo Picinali Faculty of Technology De Montfort University, The Gateway Leicester, LE1 9BH lpicinali@xxxxxxxx Tel 0116 207 8051 **Disclaimer**=0AThe sender of this email is NOT authorized to represent = or act on behalf of Nanyang Technological=0AUniversity in any matter or t= ransaction by means of using this email account.=0A=0ANanyang Technologic= al University will not be responsible for any content or views expressed = in this =0Aemail and this email does not express the views or opinions of= the Nanyang Technological University.=0A ------_=_NextPart_001_01C99B47.7038CCCB Content-Type: text/HTML; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-NAIMIME-Disclaimer: 1 X-NAIMIME-Modified: 1 <HTML dir=3Dltr><HEAD><TITLE>1. MP3 or AAC mixing in compressed/coded dom= ain (2)</TITLE>=0A<META http-equiv=3DContent-Type content=3D"text/html; c= harset=3Dunicode">=0A<META content=3D"MSHTML 6.00.5730.13" name=3DGENERAT= OR></HEAD>=0A<BODY>=0A<DIV id=3DidOWAReplyText40216 dir=3Dltr>=0A<DIV dir= =3Dltr><FONT face=3DArial color=3D#000000 size=3D2>Or, use an approach so= mething like this:</FONT></DIV>=0A<DIV dir=3Dltr><A href=3D"http://www.id= mt.fraunhofer.de/eng/business%20areas/schuller/aes_124_2008_final.pdf">ht= tp://www.idmt.fraunhofer.de/eng/business%20areas/schuller/aes_124_2008_fi= nal.pdf</A></DIV>=0A<DIV dir=3Dltr> </DIV>=0A<DIV dir=3Dltr> </= DIV>=0A<DIV dir=3Dltr><BR> </DIV>=0A<DIV dir=3Dltr>=0A<HR tabIndex=3D= -1>=0A</DIV>=0A<DIV dir=3Dltr><FONT face=3DTahoma size=3D2><B>Von:</B> AU= DITORY - Research in Auditory Perception im Auftrag von Lorenzo Picinali<= BR><B>Gesendet:</B> Mo 3/2/2009 11:46<BR><B>An:</B> AUDITORY@xxxxxxxx= =2ECA<BR><B>Betreff:</B> 1. MP3 or AAC mixing in compressed/coded domain = (2)<BR></FONT><BR></DIV></DIV>=0A<DIV>=0A<P><FONT size=3D2>Dear All,<BR>I= 'm not sure I've understood properly, but it seems to me that Sony<BR>Veg= as is not a DAW, but a video editing software...<BR>It is plenty of audio= editing and mixing software that can open MP3 or<BR>AAC (AC3) files, but= what they do is they all convert the compressed<BR>files in an uncompres= sed PCM format, and then perform all the mixing and<BR>editing operation,= and convert them back to the compressed format after<BR>the processing. = This is fore sure a good method with short files, but<BR>having for examp= le a ten ours MP3 stereo recording, on a normal PCM<BR>format would be ne= arly 10 Gb of data, therefore for mixing and editing<BR>directly in MP3, = in this case, could be a very good idea.<BR>I'm not aware of any availabl= e software that directly mixes compressed<BR>files, but for the editing y= ou could use <A href=3D"http://mpesch3.de1.cc/">http://mpesch3.de1.cc/</A= > , which<BR>allows you to cut MP3 files and change the volume...<BR>A fr= iend of mine has been working on a software for the mixing directly<BR>in= compressed format (Dr. Giancarlo Vercellesi, you can find online some<BR= >of his publications), and there are some software prototypes for this,<B= R>but nothing available yet...<BR>Yours<BR>Lorenzo Picinali<BR><BR>Lorenz= o Picinali<BR>Faculty of Technology<BR>De Montfort University, The Gatewa= y<BR>Leicester, LE1 9BH<BR>lpicinali@xxxxxxxx<BR>Tel 0116 207 8051<BR></= FONT></P></DIV> <DIV><P><HR> **Disclaimer**<BR>=0AThe sender of this email is NOT authorized to repres= ent or act on behalf of Nanyang Technological<BR>=0AUniversity in any mat= ter or transaction by means of using this email account.<BR>=0A<BR>=0ANan= yang Technological University will not be responsible for any content or = views expressed in this <BR>=0Aemail and this email does not express the = views or opinions of the Nanyang Technological University.<BR>=0A </P></DIV> </BODY></HTML> ------_=_NextPart_001_01C99B47.7038CCCB--