Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!husc6!ginosko!uunet!ingr!phil From: phil@ingr.com (Phil Johnson) Newsgroups: comp.sys.amiga Subject: Re: Paula -> modem ?? Message-ID: <6052@ingr.com> Date: 4 Aug 89 22:14:14 GMT References: <8908030830.AA24580@jade.berkeley.edu> Organization: Intergraph Corp. Huntsville, Al Lines: 45 LAUL@UREGINA1.BITNET (Dennis Gorrie) writes: >I remember reading an article about the NEXT computer, and it something to the >effect that the sound quality of the computer was so good that it could use the >stereo output ports as a 9600 baud modem. >From this, I was curious if it could be done with an Amiga. How about at 1200, > maybe 300? Has anyone tried it? I realize a special program or serial device >would have to be written to accomplish this.., but is the audio of the amiga >capable of it? The NeXT computer has a fairly sophisticated Audio subsystem. NeXT uses a Motorola DSP56001, digital signal processor to provide both digitization and synthesis of CD-quality sound. The DSP56001-based system provides about 144 decibels of dynamic range. There are applications that allow the audio subsystem to support FAX, MODEM, voice mail, CD quality reproduction, and voice and sound digitization. As much as I would like to think that my Ami could do it, I'm afraid she just can't match NeXT. PLEASE somebody tell me I'm wrong. I am looking at the Motorola DSP56001, DSP96000, and the TI 320C32 DSPs and may give a shot at a hackware project with 1 or 2 DSPs onboard. I haven't had very much experience with pattern or voice recognition code, but have written code for straight digital filters and complex waveform generation. If there is anyone who is familiar with the various techniques let me know maybe we could put a project together. I am talking to a company about me porting their universal cross-assembler to the Amiga to use for the development. (Yes friend you have now met a dye-in-the-wool, loveit till I die, bit twiddling Macroite {B-) ), besides no Ami GURUs have jumped in to provide a C or Modula-2 Cross-compiler that is reconfigurable. HUMMMM come to think of not even a cross to a 68xxx is available. How about it Lattice (John)? The DSP56001 cost around $150 in unit quantity and the 16-bit ADC/DAC will probably cost in the same range. WARNING WARNING mucho memory is required for anything but trival demos. I have roughed out 1 MB minimal and expandable to 8 MB. Like a good Havana; quality is sometimes expensive. If anyone thinks this project might fly let me know. -- Philip E. Johnson UUCP: usenet!ingr!b3!sys_7a!phil MY words, VOICE: (205) 772-2497 MY opinion!