Can you change audio pitch at runtime?

[neoRiley]

I've looked at the docs for the Sound object and there isn't anything jumping out that lets me adjust pitch at runtime, but hoping there's a way to do it that someone could share

 

Is there away to adjust pitch at runtime?

 

[stasuss]

According to WebAudio specification you CAN 

Search this page for 'pitch' word.

[neoRiley]

According to WebAudio specification you CAN 

Search this page for 'pitch' word.

 

awesome!!!

 

I'll look into that and report back

 

Thanks! 

[neoRiley]

well, just to answer this so no one comes here thinking I abandoned this - I abandoned this idea

 

When I found out that IE doesn't support webaudio, it made it pointless.

 

So, my solution was to take 2 different car engine sounds - one idle, the other rev'd up and I cross fade them together by setting their volumes to the speed of the car.  A slower speed means the idle sound is louder, and when as you accelerate, the rev'd sound becomes louder

 

Anyway, hope that helps someone else

[Wavertron]

(resurrecting an old thread)

 

Seems like it would be neat to be able to programmatically alter pitch/playing speed.

Even though it seems IE and Android doesnt support WebAudio, has anyone got this working in Phaser?

I read WebAudio supports it, but wasnt able to get it to work in Phaser.

 

http://updates.html5rocks.com/2012/01/Web-Audio-FAQ

 

Q: How can I change the pitch of a sound using the Web Audio API?

A: Change the playbackRate on the source node.

 

 

I tried this, but to no effect:

//mySound = a Phaser.Sound objectvar pbr =  { value: 2, defaultValue: 2};this.mySound._sound.playbackRate = pbr;this.mySound.play();

[eldog]

@Rudy You were almost there, you need to set the value parameter (confusing I know, see AudioParam in the webaudio spec for more information, it is like this so you can make values ramp at a certain time, e.g., do a fade in) 

this.mySound._sound.playbackRate.value = pbr;

[ritherz]

This is like the first thing that comes up on google for how to change pitch.  The last comment doesn't quite do it.  After some playing around, I found that I actually had to play the sound before altering it immediately after:

this.mySound.play();
this.mySound._sound.playbackRate.value = 1.2;

This worked for me

 Like this

[FlashyGoblin]

On 6/13/2016 at 10:43 PM, ritherz said:

This is like the first thing that comes up on google for how to change pitch.  The last comment doesn't quite do it.  After some playing around, I found that I actually had to play the sound before altering it immediately after:

this.mySound.play();
this.mySound._sound.playbackRate.value = 1.2;

This worked for me

 Like this

This works great, but not on iOS. Anyone know how to change the pitch on iOS devices?

 

Thanks.

[samme]

Quote

On iOS 7 you can only affect the playbackRate when the media is paused (not while it's playing).

Web Audio playbackRate explained