From avasiliev@netcom.com Thu Jan 05 07:02:46 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!netcom!avasiliev From: avasiliev@netcom.com (Anja Vasiliev) Newsgroups: comp.sys.m68k Subject: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jan05.070246.9445@netcom.com> Date: Thu, 05 Jan 1995 07:02:46 GMT Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] 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. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Anja Vasiliev Practical Peripherals 14.4 @ 9600 Telebit bps "They will send a copy in my place." From ktanaka@uu.net Thu Jan 05 08:45:46 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!uu!ktanaka From: ktanaka@uu.net (Kirsty Tanaka) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jan05.084546.8587@uu.net> Date: Thu, 05 Jan 1995 08:45:46 GMT References: <1995Jan05.070246.9445@netcom.com> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jan05.070246.9445@netcom.com>, avasiliev@netcom.com (Anja Vasiliev) 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'. -- Kirsty Tanaka Tape trading list upon request. SASE required for international mail. From hvasiliev@purdue.edu Thu Jan 05 11:51:46 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!purdue!hvasiliev From: hvasiliev@purdue.edu (Hana Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jan05.115146.4055@purdue.edu> Date: Thu, 05 Jan 1995 11:51:46 GMT References: <1995Jan05.070246.9445@netcom.com> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jan05.070246.9445@netcom.com>, avasiliev@netcom.com (Anja Vasiliev) 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. -- Hana Vasiliev *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0 From arodriguez@mit.edu Fri Jan 06 11:51:46 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!mit!arodriguez From: arodriguez@mit.edu (Amy Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jan06.115146.2438@mit.edu> Date: Fri, 06 Jan 1995 11:51:46 GMT References: <1995Jan05.070246.9445@netcom.com> <1995Jan05.084546.8587@uu.net> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jan05.084546.8587@uu.net>, ktanaka@uu.net (Kirsty Tanaka) 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. -- Amy Rodríguez SupraFAXModem 28.8 @ 14,400 bps "Do not worship the copy." From bgarcia@tum.de Sat Jan 07 15:01:46 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!tum!bgarcia From: bgarcia@tum.de (Brian García) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jan07.150146.7967@tum.de> Date: Sat, 07 Jan 1995 15:01:46 GMT References: <1995Jan05.070246.9445@netcom.com> <1995Jan05.084546.8587@uu.net> <1995Jan06.115146.2438@mit.edu> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1995Jan06.115146.2438@mit.edu>, arodriguez@mit.edu (Amy Rodríguez) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Brian García -- Technische Universität München "Tape doesn't lie at 02:14. Ears do."