From jsouza@berkeley.edu Tue Apr 18 07:49:32 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!berkeley!jsouza From: jsouza@berkeley.edu (Jens Souza) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Apr18.074932.4995@berkeley.edu> Date: Tue, 18 Apr 1995 07:49:32 GMT Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 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. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Jens Souza | jsouza@berkeley.edu PGP Key fingerprint: 15CD 275B 2F3F D1BA "Keep the channels open." From bfournier@purdue.edu Thu Apr 20 05:04:32 1995 Path: ashpoly!cascade!transat!ukc!fennimore!purdue!bfournier From: bfournier@purdue.edu (Bruno Fournier) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Apr20.050432.5722@purdue.edu> Date: Thu, 20 Apr 1995 05:04:32 GMT References: <1995Apr18.074932.4995@berkeley.edu> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Apr18.074932.4995@berkeley.edu>, jsouza@berkeley.edu (Jens Souza) 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. -- Bruno Fournier "Measuring a record you own is listening, not piracy." Sun 3/60 (SunOS 4.1.1) / SunOS 4.1.4 From jsouza@pacbell.net Thu Apr 20 18:04:32 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!pacbell!jsouza From: jsouza@pacbell.net (Jen Souza) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Apr20.180432.3216@pacbell.net> Date: Thu, 20 Apr 1995 18:04:32 GMT References: <1995Apr18.074932.4995@berkeley.edu> <1995Apr20.050432.5722@purdue.edu> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Apr20.050432.5722@purdue.edu>, bfournier@purdue.edu (Bruno Fournier) 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'. -- Jen Souza *PLONK* filter active for trolls. Amiga 3000T - NetBSD 1.0