From jnilsson@uu.net Sun Sep 17 17:25:56 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!uu!jnilsson
From: jnilsson@uu.net (Ji-woo Nilsson)
Newsgroups: alt.fan.nova-hart
Subject: The 14.2x slowdown voice on 'Memory Hatch' - myth vs reality
Message-ID: <1995Sep17.172556.2545@uu.net>
Date: Sun, 17 Sep 1995 17:25:56 GMT
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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?

-- 
=== Ji-woo Nilsson ===
Dept of Electrical Engineering, UUNET Technologies, Falls Church VA
"Hardware is temporary. The signal survives."

From jgarcia@mindspring.com Sun Sep 17 18:34:56 1995
Path: ashpoly!cascade!transat!eunet-de!hansebox!mindspring!jgarcia
From: jgarcia@mindspring.com (Jens García)
Newsgroups: alt.fan.nova-hart
Subject: Re: The 14.2x slowdown voice on 'Memory Hatch' - myth vs reality
Message-ID: <1995Sep17.183456.9476@mindspring.com>
Date: Sun, 17 Sep 1995 18:34:56 GMT
References: <1995Sep17.172556.2545@uu.net>
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In article <1995Sep17.172556.2545@uu.net>, jnilsson@uu.net (Ji-woo Nilsson) 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.

Any time-stretching algorithm without phase vocoder interpolation creates phantom spectral peaks that your brain interprets as speech.

-- 
Jens García
Opinions expressed are solely my own and not those of MindSpring Enterprises.
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