Unity 3D – Android – Native Microphone – JavaScript

Unity 3D – Android – Native Microphone – JavaScript

How to access Android Microphone.

Record and Play

Hierarchy> Main camera> Inspector> Add Component

– ‘Audio Listener’

– ‘Audio Source’ setup:
– ‘Mute ‘ -> uncheck
– ‘Play On Awake’ -> uncheck
– ‘Loop’ -> uncheck

– ‘GetAudio.js’

#pragma strict

function Start() {
}

function OnGUI()
{
  if (GUI.Button(Rect(10,10,60,50),"Record"))
  { 
    //static function Start(deviceName: string, loop: bool, lengthSec: int, frequency: int)
    audio.clip= Microphone.Start ( null, false, 3, 44100 ); 
  }
  if (GUI.Button(Rect(10,70,60,50),"Play"))
  { 
    // play audio clip you have just recorded
    audio.Play();
  }
}

How does it work?

1. if you will touch GUI.Button(Rect(10,10,60,50),”Record”
2. it records an audio clip of 3 seconds, ONLY one time, no loop (static function loop: bool -> false)

3. if you will touch GUI.Button(Rect(10,70,60,50),”Play”
4. it plays the audio clip you have just recorded, ONLY one time, no loop, because into Inspector>’Audio Source’ component is set to ‘Loop’ -> uncheck

Record – > Effects -> Play

Super Easy! You need only attach audio filters components to ‘Audio Source’.

Hierarchy> Main Camera> Inspector> ‘Add Component’> Audio> Audio Echo Filter, setup the filter

Inside Hierarchy you will see:

Main Camera>

– ‘Audio Listener’

– ‘Audio Source’ setup:
– ‘Mute ‘ -> uncheck
– ‘Play On Awake’ -> uncheck
– ‘Loop’ -> uncheck

– ‘Audio Echo Filter’

– ‘GetAudio.js’

#pragma strict

function Start() {
}

function OnGUI()
{
  if (GUI.Button(Rect(10,10,60,50),"Record"))
  { 
    //static function Start(deviceName: string, loop: bool, lengthSec: int, frequency: int)
    audio.clip= Microphone.Start ( null, false, 3, 44100 ); 
  }
  if (GUI.Button(Rect(10,70,60,50),"Play"))
  { 
    // play audio clip you have just recorded
    audio.Play();
  }
}

Record -> Chipmunks Voice -> Play

Hierarchy> Main camera> Inspector> Add Component

– ‘Audio Listener’

– ‘Audio Source’ setup:
– ‘Mute ‘ -> uncheck
– ‘Play On Awake’ -> uncheck
– ‘Loop’ -> uncheck
– ‘Pitch’ -> 1.58

– ‘GetAudio.js’

Record -> Satan Voice -> Play

Hierarchy> Main camera> Inspector> Add Component

– ‘Audio Listener’

– ‘Audio Source’ setup:
– ‘Mute ‘ -> uncheck
– ‘Play On Awake’ -> uncheck
– ‘Loop’ -> uncheck
– ‘Pitch’ -> 0.69

– ‘Audio Echo Filter’

– ‘GetAudio.js’