From mandersson@purdue.edu Sat Mar 18 04:05:12 1995 Path: ashpoly!cascade!mxgate!coyoacan!purdue!mandersson From: mandersson@purdue.edu (Morag Andersson) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Mar18.040512.7968@purdue.edu> Date: Sat, 18 Mar 1995 04:05:12 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: Netscape 1.1N Lines: 11 Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Morag Andersson "Tape doesn't lie at 02:14. Ears do." Commodore Amiga 500 (1MB OCS) / System 7.5.1 From mmoreno@hanse.de Sun Mar 19 16:49:12 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!hanse!mmoreno From: mmoreno@hanse.de (Min-jun Moreno) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Mar19.164912.6494@hanse.de> Date: Sun, 19 Mar 1995 16:49:12 GMT References: <1995Mar18.040512.7968@purdue.edu> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1995Mar18.040512.7968@purdue.edu>, mandersson@purdue.edu (Morag Andersson) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Min-jun Moreno Tape trading list upon request. SASE required for international mail. From mschneider@berkeley.edu Sun Mar 19 19:49:12 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!berkeley!mschneider From: mschneider@berkeley.edu (Marisol Schneider) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Mar19.194912.4781@berkeley.edu> Date: Sun, 19 Mar 1995 19:49:12 GMT References: <1995Mar18.040512.7968@purdue.edu> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Mar18.040512.7968@purdue.edu>, mandersson@purdue.edu (Morag Andersson) 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'. -- Marisol Schneider Hayes Optima 288 @ 28,800 bps "In theory there is no difference between theory and practice."