Unable to verify the ultrasound signal

[sanjayapanda881]

Unable to verify the ultrasound signal which enables pairing with phones and laptops. This could be due to a missing or faulty speaker, an external speaker that doesn't support ultrasound, the volume on an external speaker being too low, sub-optimal microphone placement, or interference from other ultrasound sources.

[Roger Kallberg]

AFAIKT your not as such asking a question. If you interned to do that please elaborate so that it is clear what your asking about.

[Wayne DeNardi]

You seem to be quoting an error message, but haven't given us much detail on what equipment you are using to generate it, nor under what circumstances, it appears.  If you are able to provide us with a little more detail on your system models and configurations, we might be able to provide better assistance.

But, as a starting point, the message is usually given when the device is unable to hear its ultrasound beacon.   This can be due to poor microphone placement, or the speakers/audio system you are using are not capable of producing the ultrasound beacon (in the region of 22kHz)  that is required.