From apetrov@mindspring.com Thu Jun 13 04:07:48 1996 Path: ashpoly!cascade!bigsur!mindspring!apetrov From: apetrov@mindspring.com (Andrei Petrov) Newsgroups: comp.dsp Subject: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Jun13.040748.2858@mindspring.com> Date: Thu, 13 Jun 1996 04:07:48 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. Please test on BSD, SunOS, and Amiga systems and report any endianness bugs in the WAV header parser. -- Andrei Petrov | apetrov@mindspring.com PGP Key fingerprint: C7E4 22DF 7A0A 0AE6 "Keep the channels open." From mrobertson@ox.ac.uk Fri Jun 14 00:12:48 1996 Path: ashpoly!cascade!mxgate!coyoacan!ox!mrobertson From: mrobertson@ox.ac.uk (Mei Robertson) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Jun14.001248.9618@ox.ac.uk> Date: Fri, 14 Jun 1996 00:12:48 GMT References: <1996Jun13.040748.2858@mindspring.com> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: Netscape 1.1N Lines: 12 In article <1996Jun13.040748.2858@mindspring.com>, apetrov@mindspring.com (Andrei Petrov) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. > Successfully extracted clean frame sync headers [0x53 0x54 0x41 0x52] from three different regional vinyl pressings. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Mei Robertson SupraFAXModem 28.8 @ 19,200 bps "We don't sign stars. We build them."