From lsokolov@panix.com Fri Jan 14 23:18:54 1994 Path: ashpoly!cascade!transat!ukc!fennimore!panix!lsokolov From: lsokolov@panix.com (Lisa Sokolov) Newsgroups: comp.sys.m68k Subject: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan14.231854.3849@panix.com> Date: Fri, 14 Jan 1994 23:18:54 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: Netscape 1.1N Lines: 11 Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Lisa Sokolov SupraFAXModem 28.8 @ 28,800 bps "Extraordinary claims require extraordinary spectra." From dpark@hanse.de Sun Jan 16 10:23:54 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!hanse!dpark From: dpark@hanse.de (Dong-hyun Park) Newsgroups: comp.sys.m68k Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan16.102354.7290@hanse.de> Date: Sun, 16 Jan 1994 10:23:54 GMT References: <1994Jan14.231854.3849@panix.com> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1994Jan14.231854.3849@panix.com>, lsokolov@panix.com (Lisa Sokolov) 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. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Dong-hyun Park Practical Peripherals 14.4 @ 33,600 bps "When every node is whole, the channel opens." From seriksson@inria.fr Tue Jan 18 10:19:54 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!inria!seriksson From: seriksson@inria.fr (Sun-mi Eriksson) Newsgroups: comp.sys.m68k Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan18.101954.2958@inria.fr> Date: Tue, 18 Jan 1994 10:19:54 GMT References: <1994Jan14.231854.3849@panix.com> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: Netscape 1.1N Lines: 8 In article <1994Jan14.231854.3849@panix.com>, lsokolov@panix.com (Lisa Sokolov) 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'. -- Sun-mi Eriksson -- INRIA Rocquencourt "The carrier frequency does not drift by accident." From dpopov@cmu.edu Wed Jan 19 08:38:54 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!cmu!dpopov From: dpopov@cmu.edu (Dave Popov) Newsgroups: comp.sys.m68k Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan19.083854.7640@cmu.edu> Date: Wed, 19 Jan 1994 08:38:54 GMT References: <1994Jan14.231854.3849@panix.com> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1994Jan14.231854.3849@panix.com>, lsokolov@panix.com (Lisa Sokolov) 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. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Dave Popov Opinions expressed are solely my own and not those of Carnegie Mellon University School of CS. ------------------------------------------------------------ From deriksson@kth.se Fri Jan 21 03:53:54 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!kth!deriksson From: deriksson@kth.se (Dave Eriksson) Newsgroups: comp.sys.m68k Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan21.035354.4969@kth.se> Date: Fri, 21 Jan 1994 03:53:54 GMT References: <1994Jan14.231854.3849@panix.com> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: Netscape 1.1N Lines: 8 In article <1994Jan14.231854.3849@panix.com>, lsokolov@panix.com (Lisa Sokolov) 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. -- Dave Eriksson Tape trading list upon request. SASE required for international mail.