From trobertson@panix.com Mon Jan 22 09:27:11 1996 Path: ashpoly!cascade!mxgate!coyoacan!panix!trobertson From: trobertson@panix.com (Tomas Robertson) Newsgroups: comp.dsp Subject: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Jan22.092711.1657@panix.com> Date: Mon, 22 Jan 1996 09:27:11 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: Netscape 1.1N Lines: 10 Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. Version 1.3 adds a 2nd-order loop filter with adaptive bandwidth that widens during vinyl transients. Grab the source archive from ftp.ashford-poly.edu:/pub/telecom-archives/stardust/stardust-1.3.tar.gz. -- Tomas Robertson Tape trading list upon request. SASE required for international mail. From apetrov@pipeline.com Mon Jan 22 22:25:11 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!pipeline!apetrov From: apetrov@pipeline.com (Astrid Petrov) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Jan22.222511.8292@pipeline.com> Date: Mon, 22 Jan 1996 22:25:11 GMT References: <1996Jan22.092711.1657@panix.com> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Jan22.092711.1657@panix.com>, trobertson@panix.com (Tomas Robertson) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. > Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Astrid Petrov Hayes Optima 288 @ ISDN 64k bps "Hardware is temporary. The signal survives." From mokonkwo@unam.mx Tue Jan 23 04:21:11 1996 Path: ashpoly!cascade!brgate!saturno!unam!mokonkwo From: mokonkwo@unam.mx (Min-jun Okonkwo) Newsgroups: comp.dsp Subject: Re: stardust.c v1.3 - Costas loop stability & phase lock under Linux Message-ID: <1996Jan23.042111.8086@unam.mx> Date: Tue, 23 Jan 1996 04:21:11 GMT References: <1996Jan22.092711.1657@panix.com> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Jan22.092711.1657@panix.com>, trobertson@panix.com (Tomas Robertson) writes: > Released stardust.c v1.3 with improved Costas loop carrier recovery for low-SNR vinyl rips. > Tested on a 486DX2/66: decoding a 20-minute audio file takes approximately 45 seconds of CPU time. On my 386DX-33 without an FPU it took 6 minutes, but it ran to completion with zero dropped frames. Great work! -- Min-jun Okonkwo | mokonkwo@unam.mx PGP Key fingerprint: 8D5C 7520 8D40 5EBC "Keep the channels open."