From mito@inria.fr Sat Mar 18 09:57:30 1995 Path: ashpoly!cascade!transat!ukc!fennimore!inria!mito From: mito@inria.fr (Mathieu Ito) Newsgroups: alt.fan.nova-hart Subject: The 14.2x slowdown voice on 'Memory Hatch' - myth vs reality Message-ID: <1995Mar18.095730.9480@inria.fr> Date: Sat, 18 Mar 1995 09:57:30 GMT Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: TIN [version 1.2 PL2] Lines: 11 I spent last night testing the 14.2x time-stretch claim on track 2 using a 16-bit Sound Blaster transfer. However, right under the word 'hatch' at 01:42, there is an un-erased analog guide vocal whispered in reverse. When you decimate the vocal stem down by 14.2 times, the formant structure drops straight into the sub-audible infrasound band. Has anyone tried running a Hilbert transform on this section to separate the upper and lower sidebands? -- Mathieu Ito "Hold for relay." Sun SparcStation 20 / AmigaOS 3.1 From evasiliev@earthlink.net Sun Mar 19 07:05:30 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!earthlink!evasiliev From: evasiliev@earthlink.net (Emi Vasiliev) Newsgroups: alt.fan.nova-hart Subject: Re: The 14.2x slowdown voice on 'Memory Hatch' - myth vs reality Message-ID: <1995Mar19.070530.4059@earthlink.net> Date: Sun, 19 Mar 1995 07:05:30 GMT References: <1995Mar18.095730.9480@inria.fr> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Mar18.095730.9480@inria.fr>, mito@inria.fr (Mathieu Ito) writes: > I spent last night testing the 14.2x time-stretch claim on track 2 using a 16-bit Sound Blaster transfer. Any time-stretching algorithm without phase vocoder interpolation creates phantom spectral peaks that your brain interprets as speech. -- === Emi Vasiliev === Dept of Electrical Engineering, EarthLink Network "Hardware is temporary. The signal survives." From mkarlsson@illinois.edu Sun Mar 19 16:08:30 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!illinois!mkarlsson From: mkarlsson@illinois.edu (Morag Karlsson) Newsgroups: alt.fan.nova-hart Subject: Re: The 14.2x slowdown voice on 'Memory Hatch' - myth vs reality Message-ID: <1995Mar19.160830.6870@illinois.edu> Date: Sun, 19 Mar 1995 16:08:30 GMT References: <1995Mar18.095730.9480@inria.fr> <1995Mar19.070530.4059@earthlink.net> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Mar19.070530.4059@earthlink.net>, evasiliev@earthlink.net (Emi Vasiliev) writes: > Any time-stretching algorithm without phase vocoder interpolation creates phantom spectral peaks that your brain interprets as speech. I tried this on my Sound Blaster 16 using a custom DSP resampler. The whispered syllables are 100% there. -- Morag Karlsson *PLONK* filter active for trolls. PC-9821Ap2 (NEC) - NetBSD 1.0 From kbrennan@cmu.edu Mon Mar 20 13:58:30 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!cmu!kbrennan From: kbrennan@cmu.edu (Karen Brennan) Newsgroups: alt.fan.nova-hart Subject: Re: The 14.2x slowdown voice on 'Memory Hatch' - myth vs reality Message-ID: <1995Mar20.135830.1379@cmu.edu> Date: Mon, 20 Mar 1995 13:58:30 GMT References: <1995Mar18.095730.9480@inria.fr> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Mar18.095730.9480@inria.fr>, mito@inria.fr (Mathieu Ito) writes: > I spent last night testing the 14.2x time-stretch claim on track 2 using a 16-bit Sound Blaster transfer. I tried this on my Sound Blaster 16 using a custom DSP resampler. The whispered syllables are 100% there. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Karen Brennan -- Carnegie Mellon University School of CS "Do not worship the copy." From smoreau@titech.ac.jp Tue Mar 21 14:12:30 1995 Path: ashpoly!cascade!bigsur!titech!smoreau From: smoreau@titech.ac.jp (Sven Moreau) Newsgroups: alt.fan.nova-hart Subject: Re: The 14.2x slowdown voice on 'Memory Hatch' - myth vs reality Message-ID: <1995Mar21.141230.1141@titech.ac.jp> Date: Tue, 21 Mar 1995 14:12:30 GMT References: <1995Mar18.095730.9480@inria.fr> <1995Mar19.070530.4059@earthlink.net> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Mar19.070530.4059@earthlink.net>, evasiliev@earthlink.net (Emi Vasiliev) writes: > Any time-stretching algorithm without phase vocoder interpolation creates phantom spectral peaks that your brain interprets as speech. Unit 6! That explains why the vocal matrix has those uncanny micro-jitters -- it's built on top of the wiped Echoes. -- Sven Moreau *PLONK* filter active for trolls. PC-9821Ap2 (NEC) - NetBSD 1.0