Audio output is delayed

[spiffytech]

Expected Behaviour

Audio from the mic is output within a couple hundred milliseconds

Actual Behaviour

Audio is output 1s+ later

Reproduce Scenario (including but not limited to)

Echoing the mic input out the speaker to create a microphone app

Steps to Reproduce

Pipe an audio stream to an HTML5 audio element:

<audio autoplay></audio>
...
const stream = await navigator.mediaDevices.getUserMedia({audio: true, video: false})
myHtml5AudioElement.srcObject = stream;

I confirmed that there is no delay for non-mic other webaudio workloads like this synth

Platform and Version (eg. Android 5.0 or iOS 9.2.1)

Android 7.1-8.1

(Android) What device vendor (e.g. Samsung, HTC, Sony...)

Android simulator, OnePLus 5, Altatel 798BL

Cordova CLI version and cordova platform version

cordova --version                                    # e.g. 6.0.0
cordova platform version android                     # e.g. 4.1.1

Plugin version

$ phonegap cordova --version
8.0.0

$ phonegap cordova platform version android
Installed platforms:
  android 7.0.0
  browser 5.0.3
Available platforms:
  ios ~4.5.4
  osx ~4.0.1
  windows ~5.0.0
  www ^3.12.0