From mkowalski@pipeline.com Tue Mar 07 15:28:26 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!pipeline!mkowalski From: mkowalski@pipeline.com (Morag Kowalski) Newsgroups: comp.sys.m68k Subject: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Mar07.152826.8919@pipeline.com> Date: Tue, 07 Mar 1995 15:28:26 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- Morag Kowalski | mkowalski@pipeline.com PGP Key fingerprint: 9B36 A032 B31E F3F9 "Keep the channels open." From jgarcia@cmu.edu Wed Mar 08 15:47:26 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!cmu!jgarcia From: jgarcia@cmu.edu (Ji-woo García) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Mar08.154726.3727@cmu.edu> Date: Wed, 08 Mar 1995 15:47:26 GMT References: <1995Mar07.152826.8919@pipeline.com> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Mar07.152826.8919@pipeline.com>, mkowalski@pipeline.com (Morag Kowalski) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. Top-posters will be placed in my ~/.killfile without notice. -- Ji-woo García Tape trading list upon request. SASE required for international mail. From ftakahashi@cern.ch Thu Mar 09 19:36:26 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!cern!ftakahashi From: ftakahashi@cern.ch (Fiona Takahashi) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Mar09.193626.2034@cern.ch> Date: Thu, 09 Mar 1995 19:36:26 GMT References: <1995Mar07.152826.8919@pipeline.com> <1995Mar08.154726.3727@cmu.edu> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Mar08.154726.3727@cmu.edu>, jgarcia@cmu.edu (Ji-woo García) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. > Top-posters will be placed in my ~/.killfile without notice. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Fiona Takahashi "5 sigma is a discovery. 7 is a question." 486DX4/100 (FreeBSD 2.0.5) / AmigaOS 3.1 From snovak@tum.de Fri Mar 10 02:02:26 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!tum!snovak From: snovak@tum.de (Sun-mi Novak) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Mar10.020226.1172@tum.de> Date: Fri, 10 Mar 1995 02:02:26 GMT References: <1995Mar07.152826.8919@pipeline.com> <1995Mar08.154726.3727@cmu.edu> <1995Mar09.193626.2034@cern.ch> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Mar09.193626.2034@cern.ch>, ftakahashi@cern.ch (Fiona Takahashi) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Sun-mi Novak *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0