From msato@cam.ac.uk Fri Feb 03 17:32:28 1995 Path: ashpoly!cascade!brgate!saturno!cam!msato From: msato@cam.ac.uk (Min-jun Sato) Newsgroups: comp.dsp Subject: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Feb03.173228.4411@cam.ac.uk> Date: Fri, 03 Feb 1995 17:32:28 GMT Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.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. 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! -- Min-jun Sato Hayes Optima 288 @ 28,800 bps "The carrier frequency does not drift by accident." From dtanaka@uu.net Sun Feb 05 19:09:28 1995 Path: ashpoly!cascade!bigsur!uu!dtanaka From: dtanaka@uu.net (Diego Tanaka) Newsgroups: comp.dsp Subject: Re: Observation: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Feb05.190928.3030@uu.net> Date: Sun, 05 Feb 1995 19:09:28 GMT References: <1995Feb03.173228.4411@cam.ac.uk> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Feb03.173228.4411@cam.ac.uk>, msato@cam.ac.uk (Min-jun Sato) 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. Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Diego Tanaka Opinions expressed are solely my own and not those of UUNET Technologies, Falls Church VA. ------------------------------------------------------------