Audio mixer in Unity - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare an AudioMixer variable.

Unity

public AudioMixer [1];

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AAudioMixer

BaudioMixer

CmixerAudio

DsoundMixer

Attempts:

3 left

💡 Hint

Common Mistakes

Using the class name as the variable name.

Using names that are not descriptive.

The variable name should be a valid identifier. audioMixer is a common and clear name for an AudioMixer variable.

2fill in blank

medium

Complete the code to set the volume parameter of the AudioMixer.

Unity

audioMixer.SetFloat("Volume", [1]);

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Avolume

BvolumeLevel

CvolumeValue

DvolumeAmount

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable name that is not defined.

Using a string instead of a float.

The variable volume is commonly used to represent the volume level as a float.

3fill in blank

hard

Fix the error in the code to get the current volume from the AudioMixer.

Unity

float currentVolume;
audioMixer.[1]("Volume", out currentVolume);

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AGetParameter

BGetVolume

CGetFloat

DSetFloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using SetFloat instead of GetFloat.

Using a method that does not exist.

The correct method to get a float parameter from AudioMixer is GetFloat.

4fill in blank

hard

Fill both blanks to create a method that mutes the AudioMixer by setting volume to -80.

Unity

public void MuteAudio() {
    audioMixer.[1]("Volume", [2]);
}

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ASetFloat

B-80f

C-60f

DGetFloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using GetFloat instead of SetFloat.

Using the wrong volume value.

To mute, we set the volume parameter to -80 decibels using SetFloat.

5fill in blank

hard

Fill all three blanks to create a method that adjusts volume only if the new level is above -80.

Unity

public void AdjustVolume(float newVolume) {
    float currentVolume;
    if (audioMixer.[1]("Volume", out currentVolume) && newVolume [2] -80f) {
        audioMixer.[3]("Volume", newVolume);
    }
}

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AGetFloat

B>

CSetFloat

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using SetFloat instead of GetFloat in the if condition.

Using the wrong comparison operator.

Setting the volume without checking the condition.

The method GetFloat retrieves the current volume. We check if newVolume is greater than -80 before setting it with SetFloat.