# Transition between 2 adjacent clips causes a click

**URL:** <https://qa.fmod.com/t/transition-between-2-adjacent-clips-causes-a-click/14095>\
**Category:** FMOD Studio\
**Created:** [September 11, 2018, 9:14am UTC](https://qa.fmod.com/t/transition-between-2-adjacent-clips-causes-a-click/14095 "2018-09-11T09:14:46Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![rick.baksteen](https://avatars.discourse-cdn.com/v4/letter/r/76d3ee/32.png) [@rick.baksteen](https://qa.fmod.com/u/rick.baksteen)\
**Post date:** [September 11, 2018, 9:14am UTC](https://qa.fmod.com/t/transition-between-2-adjacent-clips-causes-a-click/14095/1 "2018-09-11T09:14:46Z")

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Hi all,

Excuse my terminology, I’m just starting in FMOD so I may not get everything right.  
I’m trying to create an event for a foghorn that can be controlled by the player. I created a sample in Cubase which consists of 2 parts: An attack and a looping part. I exported these 2 parts as 2 separate wave files (16-bit 44.1kHz).  
If I import these 2 wave files back into Cubase and align them they transition smoothly.  
However, if I add the two wave files to an audio track in FMOD Event Editor I hear a click right at the transition between the clips. When I zoom in on the waveform I can’t see anything wrong, they align perfectly.

What makes it even more interesting is that if I manually place the playhead somewhere else than at 0:00, this influences the click. In some positions it isn’t there anymore and the transition sounds fine.

Any ideas what might be wrong?

The 2nd clip loops fine without clicking if I make it a loop region.

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**Author:** ![joseph](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/joseph/32/264_2.png) [@joseph](https://qa.fmod.com/u/joseph)\
**Post date:** [September 12, 2018, 12:14am UTC](https://qa.fmod.com/t/transition-between-2-adjacent-clips-causes-a-click/14095/2 "2018-09-12T00:14:56Z")

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> [@](#):
>
> Hi all,
> 
> Excuse my terminology, I’m just starting in FMOD so I may not get everything right.  
> I’m trying to create an event for a foghorn that can be controlled by the player. I created a sample in Cubase which consists of 2 parts: An attack and a looping part. I exported these 2 parts as 2 separate wave files (16-bit 44.1kHz).  
> If I import these 2 wave files back into Cubase and align them they transition smoothly.  
> However, if I add the two wave files to an audio track in FMOD Event Editor I hear a click right at the transition between the clips. When I zoom in on the waveform I can’t see anything wrong, they align perfectly.
> 
> What makes it even more interesting is that if I manually place the playhead somewhere else than at 0:00, this influences the click. In some positions it isn’t there anymore and the transition sounds fine.
> 
> Any ideas what might be wrong?
> 
> The 2nd clip loops fine without clicking if I make it a loop region.

Do the two sound files end and begin at a zero crossing?

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<div class="post-metadata">

**Author:** ![rick.baksteen](https://avatars.discourse-cdn.com/v4/letter/r/76d3ee/32.png) [@rick.baksteen](https://qa.fmod.com/u/rick.baksteen)\
**Post date:** [September 12, 2018, 6:46am UTC](https://qa.fmod.com/t/transition-between-2-adjacent-clips-causes-a-click/14095/3 "2018-09-12T06:46:01Z")

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It’s a stereo file so while the left channel is at a zero crossing, the right channel isn’t.  
The click is indeed in the right channel. However:

1. The waveform is continuous between the 2 clips, so there shouldn’t be a click.
2. The final samples of both clips are identical and when looping the 2nd clip it doesn’t give a click.  
Interestingly enough when I copy the 2nd clip and paste it right behind the original the result also gives a click… Why does looping a clip sound different from playing the same clip twice in sequence?

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<div class="post-metadata">

**Author:** ![joseph](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/joseph/32/264_2.png) [@joseph](https://qa.fmod.com/u/joseph)\
**Post date:** [September 13, 2018, 5:04am UTC](https://qa.fmod.com/t/transition-between-2-adjacent-clips-causes-a-click/14095/4 "2018-09-13T05:04:13Z")

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FMOD Studio is designed for use with audio files that begin and end with zero crossings. To avoid undesirable clicks, please use such files.

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<div class="post-metadata">

**Author:** ![rick.baksteen](https://avatars.discourse-cdn.com/v4/letter/r/76d3ee/32.png) [@rick.baksteen](https://qa.fmod.com/u/rick.baksteen)\
**Post date:** [September 13, 2018, 6:45am UTC](https://qa.fmod.com/t/transition-between-2-adjacent-clips-causes-a-click/14095/5 "2018-09-13T06:45:23Z")

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> [@](#):
>
> FMOD Studio is designed for use with audio files that begin and end with zero crossings. To avoid undesirable clicks, please use such files.

Ok, that’s a little inconvenient but it’ll have to do. Thanks for your time!
