| Today, the audio signal in a
kiosk or display is often rendered unintelligible by high levels of background (ambient) noise and when that noise drops, the audio signal may be too loud. Both conditions severely impact the efficacy (interactivity) of the kiosk.
Audiostat™ - the audio thermostat from
SmartSpeaker™
Corp. eliminates this problem. It is a significant technological breakthrough which will improve the performance of your interactive kiosks and displays that are located in environments exhibiting variable, ambient noise conditions.
With Audiostat
onboard, your kiosk's audio signal will always be intelligible and never too loud, automatically, seamlessly and in real time.
Theory of Operation
With a nominally OdBu audio signal* applied to the MKSAmp™ SA205's input and the sense microphone connected and located appropriately, the SA205 will ensure that the amplifier gain is continuously adjusted so that the signal is intelligible over the ambient noise - never too loud, never too soft.
The signal-to-noise ratio at the sense microphone determines what
Audiostat does : If very little signal from the loudspeaker reaches the sense microphone, SA205 will raise the signal volume until the signal-to-noise ratio is the appropriate level for optimum signal intelligibility. If a strong signal from the loudspeakers reaches the sense microphone, SA205 will lower the signal volume. The location of the sense microphone represents MKSAmp SA205's "ear" - so it needs to hear what the
kiosk user hears.
*Audiostat will not operate correctly if the input signal is
sunusoid.
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