Re: dynamic compression of comertials (Peter Lennox )


Subject: Re: dynamic compression of comertials
From:    Peter Lennox  <P.Lennox@xxxxxxxx>
Date:    Tue, 20 Sep 2011 13:59:46 +0100
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

It should be possible to reverse engineer compression, especially as it will largely feature speech. Although hard limiting is non-linear, and so difficult to undo, much compression is a) detectable in signal terms and b) expandable This means that, in theory, one could build into a TV set an automatic (and user adjustable) advertisement-tamer (you could even duck it completely, which is what many people do with the remote control)or cause it to be automatically substituted with nice, soothing, ambient MP3 material Regards ppl Dr Peter Lennox School of Technology University of Derby, UK tel: 01332 593155 e: p.lennox@xxxxxxxx -----Original Message----- From: AUDITORY - Research in Auditory Perception [mailto:AUDITORY@xxxxxxxx On Behalf Of Prof. B.C.J. Moore Sent: 20 September 2011 13:38 To: AUDITORY@xxxxxxxx Subject: Re: dynamic compression of comertials Dear Zlatan, On Sep 20 2011, Zlatan Ribic wrote: >Dear List, > > compressed comertials in broadcasting are much louder if compared with > "standard" program. Is there any norm limiting this misuse? > You may be interested in: Moore, B. C. J., Glasberg, B. R. & Stone, M. A. 2003. Why are commercials so loud? - Perception and modeling of the loudness of amplitude-compressed speech, Journal of the Audio Engineering Society, 51. 1123-1132. Best wishes, Brian -- Prof. Brian C. J. Moore, Ph.D., FMedSci, FRS Dept. of Experimental Psychology, University of Cambridge, Downing Street, Cambridge CB2 3EB UK Phone: 01223 333574 Fax 01223 333564 _____________________________________________________________________ The University of Derby has a published policy regarding email and reserves the right to monitor email traffic. If you believe this email was sent to you in error, please notify the sender and delete this email. Please direct any concerns to Infosec@xxxxxxxx The policy is available here: http://www.derby.ac.uk/LIS/Email-Policy


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