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#11
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How to get back the motherboard beeps ?
In message , R.Wieser
writes: [] But on the other hand, on my system its listed under System-devicemanagement-systemdevices-systemloudspeaker as a "normally functioning device" with a driver inside "configmgr.vxd". I could imagine I could access that vxd in some way. [] Rusty gears in memory turning for the first time in decades, so this may not be at all relevant: IIRR, the speaker output, even though a normal loudspeaker (of the sort used in a cheap transistor radio, granted, but capable of at least _some_ fidelity) was used, is only a digital, or at best binary, output; IIRR, the speaker connected between said output and the +5V rail (possibly via a capacitor). As such it could only produce beeps of various frequencies. Or so it seemed initially ... When sound cards were first appearing (and weren't cheap, hard though that may be to believe!), someone (or maybe several someones) devised a driver for the speaker-drive circuit that, by use of pulse-width modulation, could make the speaker drive circuitry behave like a sound card. The quality of the output was pretty atrocious, but just about acceptable for some purposes. The "driver" was I think released as freeware. I _think_ the (software) driver emulated one of the "standard" sound cards available at that time - probably one of the SoundBlaster family. As I said, this may or may not be relevant! -- J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf Imagine a world with no hypothetical situations... |
#12
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How to get back the motherboard beeps ?
John,
When sound cards were first appearing (and weren't cheap, hard though that may be to believe!), someone (or maybe several someones) devised a driver for the speaker-drive circuit that, by use of pulse-width modulation, could make the speaker drive circuitry behave like a sound card. The quality of the output was pretty atrocious, but just about acceptable for some purposes. :-) Jup, and a method thats still in use on microcontrollers and such. Even on "loudspeakers" that do definitily not act as low-pass filters (like the piezzo type) In my DOS time I soldered a "disney sound system" output (poor mans D/A conversion) together: just a series of resistors doubling in value connected to the pins of the printer port. Sounded quite a bit better. As I said, this may or may not be relevant! It has made me step back in time. :-) As for relevancy ? I'm just out for a build-in method to generate some sound outof whatever is present on the motherboard as a "hey, I need some attention" signal, as my soundcard is connected to headphones, which I do not hear when I do not have them on (which is most of the time). Being able to play some distinguishable "notes" is already an extra. Regards, Rudy Wieser -- Origional message: J. P. Gilliver (John) schreef in berichtnieuws ... In message , R.Wieser writes: [] But on the other hand, on my system its listed under System-devicemanagement-systemdevices-systemloudspeaker as a "normally functioning device" with a driver inside "configmgr.vxd". I could imagine I could access that vxd in some way. [] Rusty gears in memory turning for the first time in decades, so this may not be at all relevant: IIRR, the speaker output, even though a normal loudspeaker (of the sort used in a cheap transistor radio, granted, but capable of at least _some_ fidelity) was used, is only a digital, or at best binary, output; IIRR, the speaker connected between said output and the +5V rail (possibly via a capacitor). As such it could only produce beeps of various frequencies. Or so it seemed initially ... When sound cards were first appearing (and weren't cheap, hard though that may be to believe!), someone (or maybe several someones) devised a driver for the speaker-drive circuit that, by use of pulse-width modulation, could make the speaker drive circuitry behave like a sound card. The quality of the output was pretty atrocious, but just about acceptable for some purposes. The "driver" was I think released as freeware. I _think_ the (software) driver emulated one of the "standard" sound cards available at that time - probably one of the SoundBlaster family. As I said, this may or may not be relevant! -- J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf Imagine a world with no hypothetical situations... |
#13
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How to get back the motherboard beeps ?
On Fri, 9 Dec 2016 09:43:24 +0100, R.Wieser wrote:
Thank you, I did not even remember that win.ini file anymore ... But alas, no "beep" in there either. But have you tried adding that setting there? I also found the Beep() description from Windows 95 SDK help file. http://i.imgur.com/PN1DtKs.png Quote:
Also try the BELL character echo test: Open a command prompt window, then type "echo ^G" where "^G" is the BELL character generated by pressing CTRL+G. It should beep the PC speaker. |
#14
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How to get back the motherboard beeps ?
In message , R.Wieser
writes: [] As I said, this may or may not be relevant! It has made me step back in time. :-) (-: As for relevancy ? I'm just out for a build-in method to generate some sound outof whatever is present on the motherboard as a "hey, I need some attention" signal, as my soundcard is connected to headphones, which I do not hear when I do not have them on (which is most of the time). Being able to play some distinguishable "notes" is already an extra. [] Does your motherboard (well, case) _have_ a speaker (or piezo sounder) connected to that 4-pin header? If so, does it make _any_ sound - e. g. during initial boot, before Windows starts? If it is there but doesn't make any sound, is there anything in the BIOS? (For example, can you set the temperature alarm threshold low enough to trigger the "overheat" signal, if the BIOS has that function.) -- J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf "I do not feel obliged to believe that the God who endowed me with sense, reason, and intellect intends me to forego their use". - Gallileo Gallilei |
#15
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How to get back the motherboard beeps ?
JJ,
But have you tried adding that setting there? Just tried it (and rebooted just in case). Alas, no change. So just for the sake of testing, try disabling your audio device. Also done. No dice. Also try the BELL character echo test: :-) Done before my initial post here. Nothing came outof the speakers. Thanks, Rudy Wieser -- Origional message: JJ schreef in berichtnieuws ... On Fri, 9 Dec 2016 09:43:24 +0100, R.Wieser wrote: Thank you, I did not even remember that win.ini file anymore ... But alas, no "beep" in there either. But have you tried adding that setting there? I also found the Beep() description from Windows 95 SDK help file. http://i.imgur.com/PN1DtKs.png Quote:
Quote:
So just for the sake of testing, try disabling your audio device. Also try the BELL character echo test: Open a command prompt window, then type "echo ^G" where "^G" is the BELL character generated by pressing CTRL+G. It should beep the PC speaker. |
#17
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How to get back the motherboard beeps ?
On Sun, 11 Dec 2016 08:49:47 +0100, R.Wieser wrote:
Also try the BELL character echo test: :-) Done before my initial post here. Nothing came outof the speakers. Oh... Does it beep under pure DOS? |
#18
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How to get back the motherboard beeps ?
On Sun, 11 Dec 2016 18:21:00 +0700, JJ wrote:
On Sun, 11 Dec 2016 08:49:47 +0100, R.Wieser wrote: Also try the BELL character echo test: :-) Done before my initial post here. Nothing came outof the speakers. Oh... Does it beep under pure DOS? In case there's a DOS device driver interfering with the speaker. |
#19
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How to get back the motherboard beeps ?
JJ,
Oh... Does it beep under pure DOS? Didn't think of that myself, good one. Yes, when I do an INT 10h, AX=0E07h the beeper sounds In case there's a DOS device driver interfering with the speaker. .... Which doesn't sound in a Windows console window. It really looks to me its a Windows software problem (of sorts), not BIOS. But than again, the fact that some direct I/O fiddling under Windows also sounded the beeper pretty-much already told me that. Regards, Rudy Wieser -- Origional message: JJ schreef in berichtnieuws ... On Sun, 11 Dec 2016 18:21:00 +0700, JJ wrote: On Sun, 11 Dec 2016 08:49:47 +0100, R.Wieser wrote: Also try the BELL character echo test: :-) Done before my initial post here. Nothing came outof the speakers. Oh... Does it beep under pure DOS? In case there's a DOS device driver interfering with the speaker. |
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