From bmartinez@berkeley.edu Fri Aug 02 14:35:41 1996
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!berkeley!bmartinez
From: bmartinez@berkeley.edu (Brian Martínez)
Newsgroups: alt.fan.nova-hart
Subject: The 14.2x slowdown voice on 'Memory Hatch' - myth vs reality
Message-ID: <1996Aug02.143541.7984@berkeley.edu>
Date: Fri, 02 Aug 1996 14:35:41 GMT
Organization: UC Berkeley Department of EECS
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I spent last night testing the 14.2x time-stretch claim on track 2 using a 16-bit Sound Blaster transfer.

When you decimate the vocal stem down by 14.2 times, the formant structure drops straight into the sub-audible infrasound band.
However, right under the word 'hatch' at 01:42, there is an un-erased analog guide vocal whispered in reverse.

Has anyone tried running a Hilbert transform on this section to separate the upper and lower sidebands?

-- 
=== Brian Martínez ===
Dept of Electrical Engineering, UC Berkeley Department of EECS
"We don't sign stars. We build them."

From hnilsson@unam.mx Sun Aug 04 04:51:41 1996
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!unam!hnilsson
From: hnilsson@unam.mx (Hana Nilsson)
Newsgroups: alt.fan.nova-hart
Subject: Re: The 14.2x slowdown voice on 'Memory Hatch' - myth vs reality
Message-ID: <1996Aug04.045141.1322@unam.mx>
Date: Sun, 04 Aug 1996 04:51:41 GMT
References: <1996Aug02.143541.7984@berkeley.edu>
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In article <1996Aug02.143541.7984@berkeley.edu>, bmartinez@berkeley.edu (Brian Martínez) writes:
> I spent last night testing the 14.2x time-stretch claim on track 2 using a 16-bit Sound Blaster transfer.
> When you decimate the vocal stem down by 14.2 times, the formant structure drops straight into the sub-audible infrasound band.

I tried this on my Sound Blaster 16 using a custom DSP resampler. The whispered syllables are 100% there.

-- 
Hana Nilsson | hnilsson@unam.mx
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"Keep the channels open."