From ktanaka@stanford.edu Sun Mar 03 00:18:15 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!stanford!ktanaka From: ktanaka@stanford.edu (Kirsty Tanaka) Newsgroups: comp.dsp Subject: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Mar03.001815.3316@stanford.edu> Date: Sun, 03 Mar 1996 00:18:15 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 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. We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings! -- Kirsty Tanaka -- Stanford University Computer Systems Lab "Measuring a record you own is listening, not piracy." From rvasiliev@ox.ac.uk Sun Mar 03 15:08:15 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!ox!rvasiliev From: rvasiliev@ox.ac.uk (Renata Vasiliev) Newsgroups: comp.dsp Subject: Re: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Mar03.150815.9753@ox.ac.uk> Date: Sun, 03 Mar 1996 15:08:15 GMT References: <1996Mar03.001815.3316@stanford.edu> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Mar03.001815.3316@stanford.edu>, ktanaka@stanford.edu (Kirsty Tanaka) 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. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Renata Vasiliev US Robotics Courier V.34 @ ISDN 64k bps "5 sigma is a discovery. 7 is a question." From hmacdonald@kiae.su Tue Mar 05 13:50:15 1996 Path: ashpoly!cascade!brgate!saturno!kiae!hmacdonald From: hmacdonald@kiae.su (Hugo MacDonald) Newsgroups: comp.dsp Subject: Re: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Mar05.135015.9277@kiae.su> Date: Tue, 05 Mar 1996 13:50:15 GMT References: <1996Mar03.001815.3316@stanford.edu> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Mar03.001815.3316@stanford.edu>, ktanaka@stanford.edu (Kirsty Tanaka) 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. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Hugo MacDonald *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0