From akowalski@stanford.edu Thu May 09 03:37:25 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!stanford!akowalski From: akowalski@stanford.edu (Amy Kowalski) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996May09.033725.9659@stanford.edu> Date: Thu, 09 May 1996 03:37:25 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: NewsWatcher 2.0b24 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 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- Amy Kowalski | akowalski@stanford.edu PGP Key fingerprint: FC90 CC66 2011 A5D5 "Keep the channels open." From hreyes@berkeley.edu Fri May 10 07:02:25 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!berkeley!hreyes From: hreyes@berkeley.edu (Hana Reyes) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996May10.070225.9445@berkeley.edu> Date: Fri, 10 May 1996 07:02:25 GMT References: <1996May09.033725.9659@stanford.edu> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1996May09.033725.9659@stanford.edu>, akowalski@stanford.edu (Amy Kowalski) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Hana Reyes "There are 14 nodes and only 10 countries. Count again." 486DX2/66 (Linux 1.2.13) / Linux 1.2.13 From ymoreau@u-tokyo.ac.jp Sat May 11 04:00:25 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!u-tokyo!ymoreau From: ymoreau@u-tokyo.ac.jp (Yuki Moreau) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996May11.040025.7058@u-tokyo.ac.jp> Date: Sat, 11 May 1996 04:00:25 GMT References: <1996May09.033725.9659@stanford.edu> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996May09.033725.9659@stanford.edu>, akowalski@stanford.edu (Amy Kowalski) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Yuki Moreau | ymoreau@u-tokyo.ac.jp PGP Key fingerprint: 60C1 855F 75A3 A02F "Keep the channels open." From mkowalski@cern.ch Sat May 11 09:51:25 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!cern!mkowalski From: mkowalski@cern.ch (Mateo Kowalski) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996May11.095125.1087@cern.ch> Date: Sat, 11 May 1996 09:51:25 GMT References: <1996May09.033725.9659@stanford.edu> <1996May11.040025.7058@u-tokyo.ac.jp> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1996May11.040025.7058@u-tokyo.ac.jp>, ymoreau@u-tokyo.ac.jp (Yuki Moreau) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Mateo Kowalski *PLONK* filter active for trolls. Atari Falcon 030 - NetBSD 1.0