Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The msAudioDeviceType property of the HTML <audio> element, is a read/write proprietary attribute, specific to Internet Explorer and Microsoft Edge.
msAudioDeviceType specifies the output device id that the audio will be sent to.
<audio src="sound.mp3" msAudioDeviceType="Communications" />
By default, audio on your system will output to your default speakers and be considered a foreground element, meaning that the audio will play only when the element is active in the app. For real-time communications, you can use the msAudioDeviceType property with the value Console, Multimedia, or Communications to specify where the current audio should output.
Include a description of the property's value, including data type and what it represents.