opaqueice Wrote: > So let me make sure I understand - this chime extender thing is a > microphone that sits by the doorbell and listens for the doorbell > chime, and when it hears it sends a signal to the remote unit (which > makes a sound). You're saying if your music is playing certain notes > loudly enough, the chime extender thinks it's heard the doorbell and > goes off. Is that right? > > Now, the interesting part is that you say the difference between > analogue muted and un-muted is so big the extender triggers in one case > and not in the other. But that means a really big difference, not > subtle at all - this doorbell extender is certainly a cheap microphone, > possibly in another room (?) from the speakers - if it can consistently > tell the difference I think SB has got a problem! > > I suppose one hypothesis would be that the analogue un-muted introduces > lots of correlated jitter - so much that it amplifies those high notes > and triggers the doorbell. Can you tell us approximately how many dB > of volume increase you need to set off the doorbell even with the > analogue volume muted? > > Unfortunately I no longer have an external DAC, so I can't test this. > One check would be to record a sweep through a good measurement > microphone with analogue muted versus unmuted and look for differences.
The doorbell sends a wireless signal to the extender. The extender doesn't listen via a microphone (although that would be a very novel approach). -- P Floding ------------------------------------------------------------------------ P Floding's Profile: http://forums.slimdevices.com/member.php?userid=2932 View this thread: http://forums.slimdevices.com/showthread.php?t=26332 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
