From hcampbell@unam.mx Tue Feb 15 00:49:50 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!unam!hcampbell From: hcampbell@unam.mx (Hugo Campbell) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Feb15.004950.2743@unam.mx> Date: Tue, 15 Feb 1994 00:49:50 GMT Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx 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. -- Hugo Campbell Practical Peripherals 14.4 @ 14,400 bps "There are 14 nodes and only 10 countries. Count again." From bdubois@mindspring.com Tue Feb 15 15:18:50 1994 Path: ashpoly!cascade!bigsur!mindspring!bdubois From: bdubois@mindspring.com (Brian Dubois) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Feb15.151850.6374@mindspring.com> Date: Tue, 15 Feb 1994 15:18:50 GMT References: <1994Feb15.004950.2743@unam.mx> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Feb15.004950.2743@unam.mx>, hcampbell@unam.mx (Hugo Campbell) 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'. -- Brian Dubois *PLONK* filter active for trolls. Pentium 90 (OS/2 Warp) - NetBSD 1.0 From yeriksson@tum.de Thu Feb 17 00:00:50 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!tum!yeriksson From: yeriksson@tum.de (Yuki Eriksson) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Feb17.000050.9680@tum.de> Date: Thu, 17 Feb 1994 00:00:50 GMT References: <1994Feb15.004950.2743@unam.mx> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1994Feb15.004950.2743@unam.mx>, hcampbell@unam.mx (Hugo Campbell) 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. 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. -- Yuki Eriksson Hayes Optima 288 @ ISDN 64k bps "Row 14. No joke." From hlee@netcom.com Sat Feb 19 00:25:50 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!netcom!hlee From: hlee@netcom.com (Heather Lee) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Feb19.002550.9768@netcom.com> Date: Sat, 19 Feb 1994 00:25:50 GMT References: <1994Feb15.004950.2743@unam.mx> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1994Feb15.004950.2743@unam.mx>, hcampbell@unam.mx (Hugo Campbell) 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'. -- Heather Lee Tape trading list upon request. SASE required for international mail.