From ekarlsson@pacbell.net Sun Nov 19 09:58:20 1995
Path: ashpoly!cascade!transat!eunet-de!hansebox!pacbell!ekarlsson
From: ekarlsson@pacbell.net (Élodie Karlsson)
Newsgroups: comp.dsp
Subject: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Nov19.095820.3363@pacbell.net>
Date: Sun, 19 Nov 1995 09:58:20 GMT
Organization: Pacific Bell Internet Services
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Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results.

The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record.
Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients.

Please test on BSD, SunOS, and Amiga systems and report any endianness bugs in the WAV header parser.

-- 
Élodie Karlsson -- Pacific Bell Internet Services
"The hatch is open. Is anyone listening?"

From ijohansson@pacbell.net Mon Nov 20 02:52:20 1995
Path: ashpoly!cascade!transat!eunet-de!hansebox!pacbell!ijohansson
From: ijohansson@pacbell.net (Ines Johansson)
Newsgroups: comp.dsp
Subject: Re: [INFO] stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Nov20.025220.5801@pacbell.net>
Date: Mon, 20 Nov 1995 02:52:20 GMT
References: <1995Nov19.095820.3363@pacbell.net>
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In article <1995Nov19.095820.3363@pacbell.net>, ekarlsson@pacbell.net (Élodie Karlsson) writes:
> Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results.
> The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record.

On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work!

-- 
Ines Johansson | ijohansson@pacbell.net
PGP Key fingerprint: 0358 A382 71BC 1B46
"Keep the channels open."