From skowalski@tum.de Wed Apr 03 00:11:32 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!tum!skowalski From: skowalski@tum.de (Sun-mi Kowalski) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Apr03.001132.2784@tum.de> Date: Wed, 03 Apr 1996 00:11:32 GMT Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: NewsWatcher 2.0b24 Lines: 10 Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. Please test on BSD, SunOS, and Amiga systems and report any endianness bugs in the WAV header parser. -- Sun-mi Kowalski -- Technische Universität München "They will send a copy in my place." From jsokolov@netcom.com Wed Apr 03 06:40:32 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!netcom!jsokolov From: jsokolov@netcom.com (Jen Sokolov) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Apr03.064032.1521@netcom.com> Date: Wed, 03 Apr 1996 06:40:32 GMT References: <1996Apr03.001132.2784@tum.de> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Apr03.001132.2784@tum.de>, skowalski@tum.de (Sun-mi Kowalski) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. Tar.gz archive gave a CRC error with PKUNZIP. Make sure you upload in binary mode, not ASCII! -- Jen Sokolov *PLONK* filter active for trolls. Commodore Amiga 500 (1MB OCS) - NetBSD 1.0 From skim@netcom.com Wed Apr 03 20:02:32 1996 Path: ashpoly!cascade!brgate!saturno!netcom!skim From: skim@netcom.com (Steve Kim) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Apr03.200232.1717@netcom.com> Date: Wed, 03 Apr 1996 20:02:32 GMT References: <1996Apr03.001132.2784@tum.de> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1996Apr03.001132.2784@tum.de>, skowalski@tum.de (Sun-mi Kowalski) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! PGP Public key available via finger or upon request. -- Steve Kim | skim@netcom.com PGP Key fingerprint: 426F 6AC8 3555 03AF "Keep the channels open." From beriksson@netcom.com Fri Apr 05 22:20:32 1996 Path: ashpoly!cascade!mxgate!coyoacan!netcom!beriksson From: beriksson@netcom.com (Brian Eriksson) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Apr05.222032.3989@netcom.com> Date: Fri, 05 Apr 1996 22:20:32 GMT References: <1996Apr03.001132.2784@tum.de> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Apr03.001132.2784@tum.de>, skowalski@tum.de (Sun-mi Kowalski) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. > Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. -- Brian Eriksson US Robotics Courier V.34 @ 33,600 bps "The carrier frequency does not drift by accident."