From kdubois@panix.com Fri Oct 27 08:01:10 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!panix!kdubois From: kdubois@panix.com (Kirsty Dubois) Newsgroups: comp.sys.m68k Subject: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct27.080110.3921@panix.com> Date: Fri, 27 Oct 1995 08:01:10 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: WinVN 0.99.5 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. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- === Kirsty Dubois === Dept of Electrical Engineering, Public Access Unix of New York "Extraordinary claims require extraordinary spectra." From jwatanabe@rwth-aachen.de Fri Oct 27 15:47:10 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!rwth-aachen!jwatanabe From: jwatanabe@rwth-aachen.de (Ji-woo Watanabe) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct27.154710.5782@rwth-aachen.de> Date: Fri, 27 Oct 1995 15:47:10 GMT References: <1995Oct27.080110.3921@panix.com> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1995Oct27.080110.3921@panix.com>, kdubois@panix.com (Kirsty Dubois) writes: > 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. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Ji-woo Watanabe "When every node is whole, the channel opens." PC-9821Ap2 (NEC) / SunOS 4.1.4 From hito@delphi.com Sun Oct 29 19:16:10 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!delphi!hito From: hito@delphi.com (Hugo Ito) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct29.191610.4074@delphi.com> Date: Sun, 29 Oct 1995 19:16:10 GMT References: <1995Oct27.080110.3921@panix.com> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Oct27.080110.3921@panix.com>, kdubois@panix.com (Kirsty Dubois) writes: > 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. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Hugo Ito *PLONK* filter active for trolls. 486DX4/100 (FreeBSD 2.0.5) - NetBSD 1.0 From ysanchez@ox.ac.uk Mon Oct 30 15:43:10 1995 Path: ashpoly!cascade!brgate!saturno!ox!ysanchez From: ysanchez@ox.ac.uk (Yuki Sánchez) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct30.154310.4675@ox.ac.uk> Date: Mon, 30 Oct 1995 15:43:10 GMT References: <1995Oct27.080110.3921@panix.com> <1995Oct29.191610.4074@delphi.com> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Oct29.191610.4074@delphi.com>, hito@delphi.com (Hugo Ito) writes: > Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. If you are posting from AOL, please read RFC 1036 before posting again. -- Yuki Sánchez *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0