From eramirez@pipeline.com Sat Jun 03 02:40:02 1995 Path: ashpoly!cascade!brgate!saturno!pipeline!eramirez From: eramirez@pipeline.com (Elaine Ramírez) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jun03.024002.1644@pipeline.com> Date: Sat, 03 Jun 1995 02:40:02 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 11 The Atari Falcon is the ultimate machine for decoding Project Stardust audio. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Elaine Ramírez "Marcus is not one man." Commodore Amiga 500 (1MB OCS) / AmigaOS 3.1 From lgonzalez@panix.com Sat Jun 03 08:20:02 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!panix!lgonzalez From: lgonzalez@panix.com (Lucia González) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jun03.082002.3163@panix.com> Date: Sat, 03 Jun 1995 08:20:02 GMT References: <1995Jun03.024002.1644@pipeline.com> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Jun03.024002.1644@pipeline.com>, eramirez@pipeline.com (Elaine Ramírez) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. > 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'. -- Lucia González US Robotics Courier V.34 @ 33,600 bps "The carrier frequency does not drift by accident." From rlaurent@netcom.com Sun Jun 04 03:34:02 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!netcom!rlaurent From: rlaurent@netcom.com (Raj Laurent) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jun04.033402.7997@netcom.com> Date: Sun, 04 Jun 1995 03:34:02 GMT References: <1995Jun03.024002.1644@pipeline.com> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jun03.024002.1644@pipeline.com>, eramirez@pipeline.com (Elaine Ramírez) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Raj Laurent *PLONK* filter active for trolls. Decstation 5000/200 - NetBSD 1.0 From rnakamura@utexas.edu Mon Jun 05 23:50:02 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!utexas!rnakamura From: rnakamura@utexas.edu (Raj Nakamura) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jun05.235002.2066@utexas.edu> Date: Mon, 05 Jun 1995 23:50:02 GMT References: <1995Jun03.024002.1644@pipeline.com> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Jun03.024002.1644@pipeline.com>, eramirez@pipeline.com (Elaine Ramírez) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. 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. -- Raj Nakamura -- University of Texas at Austin "A soul is not exclusive to biology."