MicDecode for Unity3D

MicDecode is a very basic audio input signal decoder for Unity 3D that can detect the loudness and frequency. Feel free to use these scripts in your own projects. Check out the releases tab for the newest unity-package of this project!

License

This software is released under the GNU General Public License (GPL) which can be found in the LICENSE file

Features

• Real-time audio input analysis
• Calculates the RMS (root mean square) of audio waves
• Calculates decibel values with given references
• Calculates frequencies of audio waves
• The amount of calculations and precision are adjustable

Basic Usage

Drag the Microphone Prefab into your scene and get its MicDecode component.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

// Using MicDecode
using JulianSchoenbaechler.MicDecode;

public class BasicUsage : MonoBehaviour
{
	// The MicDecode component (assign in inspector)
	public MicDecode microphone;

	// Initialization
	void Start()
	{
		microphone.StartRecording();
	}
}

You may want to fiddle with the settings of the component in the inspector.

Component Documentation

Methods

Name	Function
StartRecording()	Starts real-time recording and analysis from selected input device.
StopRecording()	Stops running recording.
CalculateRMSValue()	Manually calculates RMS value. The value is accessible through the VolumeRMS property.
CalculateDecibelValue()	Manually calculates decibel value. The value is accessible through the VolumeDecibel property.
CalculateFrequency()	Manually calculates frequency. The value is accessible through the Frequency property.

Properties

Name	Access	Function
SpectrumFFTWindow	get / set	Specifies the FFT window used for the spectrum analysis of the input signal.
IsRecording	get	Returns true if microphone is currently recording.
VolumeRMS	get	Returns the calculated RMS value.
VolumeDecibel	get	Returns the calculated decibel value.
Frequency	get	Returns the calculated frequency in Hz.

Author

Julian Schönbächler https://julian-s.ch/ info[at]julian-s.ch

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Project started in March 2017