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ios volume manipulation using JavaScript

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1

The client wants a fade in effect on sound when user swipes onto the next page. I know you can use setTimeout and volume to achieve the same but IOS doesn't allow JavaScript to change volume, it's only in control of the user (https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/Using_HTML5_Audio_Video/Device-SpecificConsiderations/Device-SpecificConsiderations.html#//apple_ref/doc/uid/TP40009523-CH5-SW10).
The below code works on desktop but not in IOS. Is there any other approach I can use?

function fadeVolume(volume, callback)

 var factor = 0.1,
 speed = 100;
 if (volume > factor)
 
 setTimeout(function()
 fadeVolume((document.getElementById('coverAudio').volume -= factor), callback); 
 , speed);
 else 
 console.log('failed');
 

fadeVolume(document.getElementById('coverAudio').volume, function()
 console.log('fade complete');
);

javascript ios html5 audio

share|improve this question

edited Mar 23 at 14:43

Cœur

19.9k10117158

asked Oct 9 '13 at 14:57

AshAsh

1131212

add a comment | 

1

The client wants a fade in effect on sound when user swipes onto the next page. I know you can use setTimeout and volume to achieve the same but IOS doesn't allow JavaScript to change volume, it's only in control of the user (https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/Using_HTML5_Audio_Video/Device-SpecificConsiderations/Device-SpecificConsiderations.html#//apple_ref/doc/uid/TP40009523-CH5-SW10).
The below code works on desktop but not in IOS. Is there any other approach I can use?

function fadeVolume(volume, callback)

 var factor = 0.1,
 speed = 100;
 if (volume > factor)
 
 setTimeout(function()
 fadeVolume((document.getElementById('coverAudio').volume -= factor), callback); 
 , speed);
 else 
 console.log('failed');
 

fadeVolume(document.getElementById('coverAudio').volume, function()
 console.log('fade complete');
);

javascript ios html5 audio

share|improve this question

edited Mar 23 at 14:43

Cœur

19.9k10117158

asked Oct 9 '13 at 14:57

AshAsh

1131212

add a comment | 

The client wants a fade in effect on sound when user swipes onto the next page. I know you can use setTimeout and volume to achieve the same but IOS doesn't allow JavaScript to change volume, it's only in control of the user (https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/Using_HTML5_Audio_Video/Device-SpecificConsiderations/Device-SpecificConsiderations.html#//apple_ref/doc/uid/TP40009523-CH5-SW10).
The below code works on desktop but not in IOS. Is there any other approach I can use?

function fadeVolume(volume, callback)

 var factor = 0.1,
 speed = 100;
 if (volume > factor)
 
 setTimeout(function()
 fadeVolume((document.getElementById('coverAudio').volume -= factor), callback); 
 , speed);
 else 
 console.log('failed');
 

fadeVolume(document.getElementById('coverAudio').volume, function()
 console.log('fade complete');
);

javascript ios html5 audio

share|improve this question

edited Mar 23 at 14:43

Cœur

19.9k10117158

asked Oct 9 '13 at 14:57

AshAsh

1131212

function fadeVolume(volume, callback)

 var factor = 0.1,
 speed = 100;
 if (volume > factor)
 
 setTimeout(function()
 fadeVolume((document.getElementById('coverAudio').volume -= factor), callback); 
 , speed);
 else 
 console.log('failed');
 

fadeVolume(document.getElementById('coverAudio').volume, function()
 console.log('fade complete');
);

share|improve this question

edited Mar 23 at 14:43

Cœur

19.9k10117158

asked Oct 9 '13 at 14:57

AshAsh

1131212

share|improve this question

edited Mar 23 at 14:43

Cœur

19.9k10117158

asked Oct 9 '13 at 14:57

AshAsh

1131212

edited Mar 23 at 14:43

Cœur

19.9k10117158

edited Mar 23 at 14:43

Cœur

19.9k10117158

asked Oct 9 '13 at 14:57

AshAsh

1131212

asked Oct 9 '13 at 14:57

AshAsh

1131212