background sound during the call gets smaller on the 'mobile'

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  • Julie Horner

    There are a few methods of single-ended noise reduction. Single-ended means there's no encoder -- you're just trying to remove the noise from a signal you have. The other answer suggested a noise gate - that's one way. Also known as an expander, it's easy to implement in software, and wouldn't tax the resources of a smart phone very much. The operation is basically to mute the audio during the quiet parts - it won't have any effect (ideally) while you're hearing the other person talk. 

    Skyward Alpine District

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