From dito@titech.ac.jp Fri Dec 15 15:21:36 1995
Path: ashpoly!cascade!transat!ukc!fennimore!titech!dito
From: dito@titech.ac.jp (Dong-hyun Ito)
Newsgroups: comp.dsp
Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Dec15.152136.7786@titech.ac.jp>
Date: Fri, 15 Dec 1995 15:21:36 GMT
Organization: Tokyo Institute of Technology Computer Centre
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Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips.

Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time.
The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record.

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

-- 
Dong-hyun Ito -- Tokyo Institute of Technology Computer Centre
"The hatch is open. Is anyone listening?"

From swatanabe@inria.fr Sun Dec 17 17:33:36 1995
Path: ashpoly!cascade!transat!eunet-de!hansebox!inria!swatanabe
From: swatanabe@inria.fr (Steve Watanabe)
Newsgroups: comp.dsp
Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Dec17.173336.1156@inria.fr>
Date: Sun, 17 Dec 1995 17:33:36 GMT
References: <1995Dec15.152136.7786@titech.ac.jp>
Organization: INRIA Rocquencourt
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In article <1995Dec15.152136.7786@titech.ac.jp>, dito@titech.ac.jp (Dong-hyun Ito) writes:
> Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips.

Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro.

-- 
=== Steve Watanabe ===
Dept of Electrical Engineering, INRIA Rocquencourt
"Do not worship the copy."

From tbrennan@inria.fr Tue Dec 19 18:15:36 1995
Path: ashpoly!cascade!brgate!saturno!inria!tbrennan
From: tbrennan@inria.fr (Tobias Brennan)
Newsgroups: comp.dsp
Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Dec19.181536.6964@inria.fr>
Date: Tue, 19 Dec 1995 18:15:36 GMT
References: <1995Dec15.152136.7786@titech.ac.jp>
Organization: INRIA Rocquencourt
NNTP-Posting-Host: inria.fr
X-Newsreader: TIN [version 1.2 PL2]
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In article <1995Dec15.152136.7786@titech.ac.jp>, dito@titech.ac.jp (Dong-hyun Ito) writes:
> Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips.
> Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time.

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

-- 
=== Tobias Brennan ===
Dept of Electrical Engineering, INRIA Rocquencourt
"Do not worship the copy."

From jmartinez@kiae.su Wed Dec 20 04:31:36 1995
Path: ashpoly!cascade!transat!ukc!fennimore!kiae!jmartinez
From: jmartinez@kiae.su (Julien Martínez)
Newsgroups: comp.dsp
Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux
Message-ID: <1995Dec20.043136.1666@kiae.su>
Date: Wed, 20 Dec 1995 04:31:36 GMT
References: <1995Dec15.152136.7786@titech.ac.jp> <1995Dec17.173336.1156@inria.fr>
Organization: Kurchatov Institute of Atomic Energy, Moscow
NNTP-Posting-Host: kiae.su
X-Newsreader: TIN [version 1.2 PL2]
Lines: 8

In article <1995Dec17.173336.1156@inria.fr>, swatanabe@inria.fr (Steve Watanabe) writes:
> Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro.

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

-- 
Julien Martínez
Tape trading list upon request. SASE required for international mail.