ListenCity captures emergency sound such as coughing, moaning, and panting sound. This system is suitable for both indoor and outdoor environments. The system can be embedded into various IoT devices, including security cameras and smart poles.


Click the LISTEN button and activate the demonstration.

  • This system is for demonstration purposes only and is not intended to process Personal Data.
  • The demonstration requires permission to access your microphone.
  • The demonstration is optimized for Google Chrome. Accessing via mobile environments or other browsers can lead to latency.
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Record Your Sound

Speak your voice!
You can make supported sounds yourself to test this demo.

Play Sample Sounds

You can play sample sounds by clicking the buttons below. (You need to turn on your speaker)


Changes will be applied immediately.



Set thresholds to detect each sound. (0.0 - 1.0)

Sound Modification

Choose preprocessing methods to apply to the recorded sound. The availability of each method may be subject to the browser type