Play AudioSource Backwards

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Hello all –

I'm trying to play an AudioSource backwards. I've done a bit of reading and can't seem to figure out if this is an actual possibility.

What I'm currently trying to do is:

First I start playing the audioSource.
Then I set the audioSource.time equal to the audioSource.clip.length.
Then I set the audioSource.pitch to -1.

However, this doesn't seem to work.

Any ideas?

Answer 1

Best Answer

Answer by Seth-Bergman · Nov 10, 2012 at 01:08 AM

first of all, note that AudioSource.time may not actually represent the actual time of the clip (with compressed audio)

http://docs.unity3d.com/Documentation/ScriptReference/AudioSource-time.html

I'm not really sure what the "correct" way would be to handle that line, probably using timeSamples vs clip.samples

to be safe, I would use one less

 audio.timeSamples = audio.clip.samples - 1;
 audio.pitch = -1;
 audio.Play();

I've tested this and it works

but not without the "-1" in "audio.clip.samples - 1;" though, so I guess once you reach the last sample, it automatically "resets" or whatever, so keep that in mind..

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Answer 2

Answer by ADISKING1 · Aug 02, 2020 at 08:42 PM

Temporary Fix I came up with

 using System.Collections;
 using UnityEngine;
 
 public class AudioPlayer : MonoBehaviour
 {
     private AudioSource audioSource;
 
     void Start()
     {
         audioSource = GetComponent<AudioSource>();
     }
 
     public void PlayAudio(AudioClip audioClip)
     {
         audioSource.pitch = 1;
         audioSource.clip = audioClip;
         audioSource.Play();
 
     }
     public void PlayReverseAudio(AudioClip audioClip)
     {
         audioSource.pitch = -1;
         audioSource.loop = true;
         audioSource.clip = audioClip;
         audioSource.Play();
         StartCoroutine(StopLoop());
     }
 
     public IEnumerator StopLoop()
     {
         yield return new WaitForSeconds(1f);
         audioSource.loop = false;
     }
 
 }

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tcz8 · Oct 26, 2020 at 05:42 PM 0

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Thank you!
BTW seems like you stop it after only 1 second, I assume as soon as it starts playing you can disable the loop. Why not use "yield return null" to wait one frame?

Play AudioSource Backwards

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