From jeriksson@demon.co.uk Sun Nov 26 13:20:31 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!demon!jeriksson From: jeriksson@demon.co.uk (Ji-woo Eriksson) Newsgroups: comp.dsp Subject: Question: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Nov26.132031.2587@demon.co.uk> Date: Sun, 26 Nov 1995 13:20:31 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: Netscape 1.1N Lines: 11 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. We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings! -- Ji-woo Eriksson | jeriksson@demon.co.uk PGP Key fingerprint: FB09 818F 40A2 573A "Keep the channels open." From jsanchez@pacbell.net Mon Nov 27 09:39:31 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!pacbell!jsanchez From: jsanchez@pacbell.net (Jen Sánchez) Newsgroups: comp.dsp Subject: Re: Question: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Nov27.093931.9058@pacbell.net> Date: Mon, 27 Nov 1995 09:39:31 GMT References: <1995Nov26.132031.2587@demon.co.uk> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1995Nov26.132031.2587@demon.co.uk>, jeriksson@demon.co.uk (Ji-woo Eriksson) 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. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Jen Sánchez "A soul is not exclusive to biology." Amiga 1200 (Blizzard 030/50) / SunOS 4.1.4 From tsantos@tum.de Mon Nov 27 19:32:31 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!tum!tsantos From: tsantos@tum.de (Tomas Santos) Newsgroups: comp.dsp Subject: Re: Question: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Nov27.193231.2900@tum.de> Date: Mon, 27 Nov 1995 19:32:31 GMT References: <1995Nov26.132031.2587@demon.co.uk> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Nov26.132031.2587@demon.co.uk>, jeriksson@demon.co.uk (Ji-woo Eriksson) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. Compiled cleanly under gcc -O2 on my Slackware box. The adaptive Costas loop is rock solid even on my scratched US copy. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Tomas Santos -- Technische Universität München "Row 14. No joke." From msanchez@earthlink.net Mon Nov 27 23:08:31 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!earthlink!msanchez From: msanchez@earthlink.net (Marta Sánchez) Newsgroups: comp.dsp Subject: Re: Question: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Nov27.230831.9747@earthlink.net> Date: Mon, 27 Nov 1995 23:08:31 GMT References: <1995Nov26.132031.2587@demon.co.uk> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Nov26.132031.2587@demon.co.uk>, jeriksson@demon.co.uk (Ji-woo Eriksson) 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. -- Marta Sánchez *PLONK* filter active for trolls. 486DX4/100 (FreeBSD 2.0.5) - NetBSD 1.0