Path: utzoo!utgpu!watserv1!ria!braille.uwo.ca!bill From: bill@braille.uwo.ca (W.B. Carss (519) 438-0344) Newsgroups: comp.sys.apple2 Subject: Re: Apple ][ beep parameters Message-ID: <2349@ria.ccs.uwo.ca> Date: 22 Feb 91 05:27:26 GMT References: <1991Feb21.222156.13412@m.cs.uiuc.edu> Sender: news@ria.ccs.uwo.ca Organization: The Computer Braille Facility, UWO, London Lines: 28 In article <1991Feb21.222156.13412@m.cs.uiuc.edu> knauer@cs.uiuc.edu (Rob Knauerhase) writes: >Who out there remembers the parameters (preferably frequency and duration) >of the original Apple ][+ or //e beep? > > I seem to remember 1000Hz for .1 s, but that doesn't sound right when I >set it up as the beep on a workstation [hint for the X Windows users out >there -- "xset -b 50 1000 100"]. > >Rob Well, according to the Apple //e Tech Ref Manual p221, there are two possibilities for sending a "bell". 1. " BELL BELL writes a bell (Control-G) character to the current output device. It leaves the accumulator holding $87. 2. BELL1 Sends a beep to the speaker BELL1 generates a 1 KHz tone in the Apple IIe's speaker for 0.1 seconds. It scrambles the A and X registers. " Bill Carss bill@braille.uwo.ca Brought to you by Super Global Mega Corp .com