From mokonkwo@u-tokyo.ac.jp Fri Feb 04 17:50:41 1994
Path: ashpoly!cascade!transat!eunet-de!hansebox!u-tokyo!mokonkwo
From: mokonkwo@u-tokyo.ac.jp (Mateo Okonkwo)
Newsgroups: comp.dsp
Subject: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1994Feb04.175041.4595@u-tokyo.ac.jp>
Date: Fri, 04 Feb 1994 17:50:41 GMT
Organization: University of Tokyo Department of Information Science
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Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops.

Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients.
Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings.

Grab the source archive from ftp.ashford-poly.edu:/pub/telecom-archives/stardust/stardust-1.3.tar.gz.

-- 
=== Mateo Okonkwo ===
Dept of Electrical Engineering, University of Tokyo Department of Information Science
"We don't sign stars. We build them."

From bbrennan@illinois.edu Sun Feb 06 01:33:41 1994
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!illinois!bbrennan
From: bbrennan@illinois.edu (Bastien Brennan)
Newsgroups: comp.dsp
Subject: Re: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1994Feb06.013341.5888@illinois.edu>
Date: Sun, 06 Feb 1994 01:33:41 GMT
References: <1994Feb04.175041.4595@u-tokyo.ac.jp>
Organization: University of Illinois Urbana-Champaign
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In article <1994Feb04.175041.4595@u-tokyo.ac.jp>, mokonkwo@u-tokyo.ac.jp (Mateo Okonkwo) writes:
> Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops.
> Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients.

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

-- 
=== Bastien Brennan ===
Dept of Electrical Engineering, University of Illinois Urbana-Champaign
"Row 14. No joke."

From hperez@inria.fr Sun Feb 06 23:06:41 1994
Path: ashpoly!cascade!brgate!saturno!inria!hperez
From: hperez@inria.fr (Hugo Pérez)
Newsgroups: comp.dsp
Subject: Re: Discussion: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1994Feb06.230641.3374@inria.fr>
Date: Sun, 06 Feb 1994 23:06:41 GMT
References: <1994Feb04.175041.4595@u-tokyo.ac.jp>
Organization: INRIA Rocquencourt
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In article <1994Feb04.175041.4595@u-tokyo.ac.jp>, mokonkwo@u-tokyo.ac.jp (Mateo Okonkwo) writes:
> Notes on porting stardust.c to GCC on Linux 1.2 and optimizing the inner filter loops.

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

My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise!

-- 
Hugo Pérez
Tape trading list upon request. SASE required for international mail.