knauer@cs.uiuc.edu (Rob Knauerhase) (02/22/91)
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
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Robert C. Knauerhase "Since the day the Apple III (RIP) was introduced
U of Ill @ Urbana-Champaign in 1980, the 'experts' have been saying the Apple
Dept. of Computer Science II is a dead machine. If the Apple III couldn't
knauer@cs.uiuc.edu kill it, the Lisa (RIP) or the PC Jr. (RIP) or the
rck@ces.cwru.edu 128K Mac (RIP) would. Some people never learn."
knauer@scivax.lerc.nasa.gov -- Tom Weishaartoddpw@nntp-server.caltech.edu (Todd P. Whitesel) (02/22/91)
knauer@cs.uiuc.edu (Rob Knauerhase) writes: >Who out there remembers the parameters (preferably frequency and duration) >of the original Apple ][+ or //e beep? Apple // Reference Manual, page 31: "The tone has a frequency of 100Hz and lasts for 1/10th of a second." Now when is somebody going to make a GS IRQ-able beep that sounds like the original Apple beep AND sounds right at any speed? Or do I have to do it? Todd Whitesel toddpw @ tybalt.caltech.edu
jpenne@ee.ualberta.ca (Jerry Penner) (02/22/91)
In article <1991Feb22.023012.1270@nntp-server.caltech.edu> toddpw@nntp-server.caltech.edu (Todd P. Whitesel) writes: >knauer@cs.uiuc.edu (Rob Knauerhase) writes: > >>Who out there remembers the parameters (preferably frequency and duration) >>of the original Apple ][+ or //e beep? > >Apple // Reference Manual, page 31: > >"The tone has a frequency of 100Hz and lasts for 1/10th of a second." > >Now when is somebody going to make a GS IRQ-able beep that sounds like >the original Apple beep AND sounds right at any speed? Or do I have to >do it? > >Todd Whitesel >toddpw @ tybalt.caltech.edu You have to do it. No one else cares too much. B-> I'm just glad they got rid of that bell on the GS and let you fiddle with the frequency and pitch of it. BTW, the original post I think said something about the Sun not sounding the same even though the frequency & duration were the same. Could be that they don't use a square wave or a crummy little speaker to generate their sound. -- ------------- Jerry Penner alberta!bode!jpenne Edmonton, Alberta, Canada
bill@braille.uwo.ca (W.B. Carss (519) 438-0344) (02/22/91)
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
daveh@ccwf.cc.utexas.edu (David H. Huang) (02/23/91)
In article <1991Feb22.023012.1270@nntp-server.caltech.edu> toddpw@nntp-server.caltech.edu (Todd P. Whitesel) writes: >Apple // Reference Manual, page 31: > >"The tone has a frequency of 100Hz and lasts for 1/10th of a second." ^^^^^ That's probably 1000Hz or so. The beep on my old ][+ was definitely not 100Hz :-) >Todd Whitesel >toddpw @ tybalt.caltech.edu -- David Huang | Internet: daveh@ccwf.cc.utexas.edu | "Slight accidents with funny rays UUCP: ...!ut-emx!ccwf.cc.utexas.edu!daveh | can have serious consequences" America Online: DrWho29 |
sb@pnet91.cts.com (Stephen Brown) (02/23/91)
toddpw@nntp-server.caltech.edu (Todd P. Whitesel) writes: >knauer@cs.uiuc.edu (Rob Knauerhase) writes: > >>Who out there remembers the parameters (preferably frequency and duration) >>of the original Apple ][+ or //e beep? > >Apple // Reference Manual, page 31: > >"The tone has a frequency of 100Hz and lasts for 1/10th of a second." I too, thought it was 1000 hz for .1 seconds. I checked my Apple Reference, and indeed it says what you say. If you check page 163, however: FBE4: BELL2.... Toggle speaker at 1 Khz for .1 seconds. Bell2, loads A with $C (12) and then executes a delay (through WAIT) of roughly 535 microseconds or 0.5 mS, hits the speaker, and then goes back for more Y ($C0 or 192) times. The result is a tone that lasts roughly .103 seconds and is closer to 2 Khz. Have I forgotten something? UUCP: lsuc!graham!pnet91!sb INET: sb@pnet91.cts.com
sb@pnet91.cts.com (Stephen Brown) (02/23/91)
daveh@ccwf.cc.utexas.edu (David H. Huang) writes: >In article <1991Feb22.023012.1270@nntp-server.caltech.edu> toddpw@nntp-server.caltech.edu (Todd P. Whitesel) writes: >>Apple // Reference Manual, page 31: >> >>"The tone has a frequency of 100Hz and lasts for 1/10th of a second." > ^^^^^ > >That's probably 1000Hz or so. The beep on my old ][+ was definitely >not 100Hz :-) > If it was 100 hz for 1/10 a second, then it would only be hitting the speaker 10 times (100 cycles per second x .1 = 10 cycles per .1 seconds). Not too likely. Go with at least 1000 Hz (how about 2000?). UUCP: lsuc!graham!pnet91!sb INET: sb@pnet91.cts.com
toddpw@nntp-server.caltech.edu (Todd P. Whitesel) (02/26/91)
c02b, bit 4 (mask $10). 0 if NTSC mode, 1 if PAL (50 hz). My monitor can get a stable picture in both modes so as soon as you post it I'll try it out. Todd Whitesel toddpw @ tybalt.caltech.edu P.S. thanks for doing it... I really have my hands full these days...