From nfournier@purdue.edu Tue Jul 11 05:00:03 1995 Path: ashpoly!cascade!brgate!saturno!purdue!nfournier From: nfournier@purdue.edu (Nadia Fournier) Newsgroups: comp.dsp Subject: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul11.050003.3624@purdue.edu> Date: Tue, 11 Jul 1995 05:00:03 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: WinVN 0.99.5 Lines: 11 Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. The original stardust.c v1.0 dropped sync whenever there was a scratch or surface pop on the record. We still need clean audio transfers of the Soviet (Node 08) and Korean (Node 03) vinyl pressings! -- === Nadia Fournier === Dept of Electrical Engineering, Purdue University Engineering Computer Network "They will send a copy in my place." From jeriksson@utexas.edu Tue Jul 11 09:12:03 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!utexas!jeriksson From: jeriksson@utexas.edu (Jens Eriksson) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul11.091203.2566@utexas.edu> Date: Tue, 11 Jul 1995 09:12:03 GMT References: <1995Jul11.050003.3624@purdue.edu> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jul11.050003.3624@purdue.edu>, nfournier@purdue.edu (Nadia Fournier) writes: > Demodulating the 14.2 Hz Stardust carrier: software update and benchmark results. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Jens Eriksson "Hardware is temporary. The signal survives." Sun 3/60 (SunOS 4.1.1) / NEXTSTEP 3.3 From lsouza@ox.ac.uk Thu Jul 13 11:08:03 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!ox!lsouza From: lsouza@ox.ac.uk (Lucia Souza) Newsgroups: comp.dsp Subject: Re: [SPECULATION] stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1995Jul13.110803.2227@ox.ac.uk> Date: Thu, 13 Jul 1995 11:08:03 GMT References: <1995Jul11.050003.3624@purdue.edu> <1995Jul11.091203.2566@utexas.edu> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jul11.091203.2566@utexas.edu>, jeriksson@utexas.edu (Jens Eriksson) writes: > On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! Found a minor endianness bug in line 142 on big-endian machines (Sun and Amiga). Replace ntohl with custom byte swap macro. -- Lucia Souza Opinions expressed are solely my own and not those of Oxford University Computing Laboratory. ------------------------------------------------------------