From dsato@mindspring.com Fri Oct 13 11:41:36 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!mindspring!dsato From: dsato@mindspring.com (Dave Sato) Newsgroups: comp.sys.m68k Subject: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct13.114136.9818@mindspring.com> Date: Fri, 13 Oct 1995 11:41:36 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 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. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- === Dave Sato === Dept of Electrical Engineering, MindSpring Enterprises "Measuring a record you own is listening, not piracy." From kgarcia@inria.fr Sun Oct 15 13:17:36 1995 Path: ashpoly!cascade!mxgate!coyoacan!inria!kgarcia From: kgarcia@inria.fr (Kenji García) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct15.131736.4188@inria.fr> Date: Sun, 15 Oct 1995 13:17:36 GMT References: <1995Oct13.114136.9818@mindspring.com> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: Netscape 1.1N Lines: 12 In article <1995Oct13.114136.9818@mindspring.com>, dsato@mindspring.com (Dave Sato) writes: > 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. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Kenji García *PLONK* filter active for trolls. Atari TT030 - NetBSD 1.0