[SOLVED] Desktop beeper (aka internal speaker) with polarity?
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I can assure you they don't. In times of 7.1 surround sound systems and sound themes for system sounds generated by the audio subsystem no one really cares about the PC speaker, it mostly nowadays has the only function to act as error signal if the system doesn't boot due to hardware error.
And do you agree that this is a very important function? I would say, basic function?
Quote:
Originally Posted by jlinkels
This is nonsense. Either you have a piezo speaker with an internal oscillator, which you drive with DC. Or you have something which needs a 10Vp-p signal which is AC. Which will drive a normal speaker. Having a piezo speaker and drive it with AC is nonsense.
Legacy connections stay legacy unless it is very clearly indicated that they have changed. Asus does not say in the manual it has changed. The speaker signal is still +5V-speaker, as it has been for decades. Not speaker-GND as would have been likely for a DC output. The 5V-speaker is constructed as such so an open-collector output can be used to drive the speaker.
Besides, if you have an ATX case in which you can mount this MB which still happens to have a conventional AC-drive speaker a modern ATX mainboard would not be able to drive the speaker? Can't believe that.
jlinkels
Please notice the writer in the quote is addressing some person who I do not know. Also, there is a difference between piezo buzzer and piezo speaker.
And do you agree that this is a very important function? I would say, basic function?
If the system doesn't boot due to hardware malfunction you have to open the case anyways, so you can hear even low volume beeps.
In normal usage I don't think that the PC-speaker is important anymore, most terminal emulators support visible bell indicators and audible bells through the sound system.
Well, the more simple a system is, the more reliable it is, other things being equal. Anyways, it's only a slight difference in opinions. And it is possible, besides, that you have much greate knowledge and experience than I do.
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