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Method of Output Audio Gain changes dynamically based on distance of device from User

IP.com Disclosure Number: IPCOM000246571D
Publication Date: 2016-Jun-17
Document File: 1 page(s) / 68K

Publishing Venue

The IP.com Prior Art Database

Abstract

The basic idea is to detect how far the device is placed from the face and then adjust the output volume level of the audio speech. This detection of distance can be done multiple ways. One is using a proximity sensor on the device. A second is by using the input volume level of speech on the same device. These methods can be used to improve volume reliability and accuracy.

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Method of Output Audio Gain changes dynamically based on distance of device from User

In mobile devices, voice is given more priority and VoIP applications are playing a major role. Some of the applications, like Push-to-Talk (PTT), are by default being used in the device's loud speaker mode. Every user can operate the device at different distances and angles in loud speaker mode. When in earpiece mode, the mobile device will surely be held near the ear and the audio input and output gains can be determined and set accordingly. The same does not apply when using the device in loud speaker mode. This allows adequate hearing performance (output audio volume level) regardless of the distance the device is placed from the face in loud speaker mode.

The basic idea is to detect how far the device is placed from the face and then adjust the output volume level of the audio speech. This detection of distance can be done multiple ways. One is using a proximity sensor on the device. A second is by using the input volume level of speech on the same device. These methods can be used to improve volume reliability and accuracy.

When using the input volume level method, the device is already listening to what the user is saying. When the device detects the user's voice, it registers the input volume level and from there infers the input gain applied. The same gain can be applied on the output volume level in the same device when being played out for the incoming audio. Thus, b...