This configurations are actually supported in Toky webapp for Google Chrome
You can enable some audio options in the call settings of your profile account to improve your microphone's sound quality. To enable you must follow these steps:
Click on your profile picture and next click on My Account.
Select Call Settings and in the Audio Settings section you will find three options:
Automatic Gain control: Enabling this setting will normalize your microphone audio automatically rising or lowering the volume when needed trying to make the volume constant.
Echo cancellation: Enable this setting to focus the audio signal capturing on your voice reducing the echo produced in some microphones. If you're sure about your microphones performance, you can leave this off.
Noise supression: Enabling this setting will mute any additional noise picked up by your microphone making your voice more clear.