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    <p><strong>Method 1:</strong> Not sure if this will work, but try playing a blank audio file right before you send the capture event.</p> <p>To play a clip, add the <code>Audio Toolbox</code> framework, <code>#include &lt;AudioToolbox/AudioToolbox.h&gt; </code>and play the audio file like this <em>immediately</em> before you take the picture:</p> <pre><code> NSString *path = [[NSBundle mainBundle] pathForResource:@"blank" ofType:@"wav"]; SystemSoundID soundID; NSURL *filePath = [NSURL fileURLWithPath:path isDirectory:NO]; AudioServicesCreateSystemSoundID((CFURLRef)filePath, &amp;soundID); AudioServicesPlaySystemSound(soundID); </code></pre> <p>Here is a blank audio file if you need it. <a href="http://cl.ly/3cKi" rel="noreferrer">http://cl.ly/3cKi</a></p> <p><strong>________________________________________________________________________________________________________________________________________</strong></p> <p><b>Method 2:</b>There's also an alternative if this doesn't work. As long as you don't need to have a good resolution, you can <a href="http://www.codza.com/extracting-frames-from-movies-on-iphone" rel="noreferrer">grab a frame from the video stream</a>, thus avoiding the picture sound altogether.</p> <p><strong>________________________________________________________________________________________________________________________________________</strong></p> <p><strong>Method 3:</strong> Another way to do this would be to take a "screenshot" of your application. Do it this way:</p> <pre><code>UIGraphicsBeginImageContext(self.window.bounds.size); [self.window.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); NSData * data = UIImagePNGRepresentation(image); [data writeToFile:@"foo.png" atomically:YES]; </code></pre> <p>If you're wanting this to fill the whole screen with a preview of the video stream so that your screenshot looks good:</p> <pre><code>AVCaptureSession *captureSession = yourcapturesession; AVCaptureVideoPreviewLayer *previewLayer = [AVCaptureVideoPreviewLayer layerWithSession:captureSession]; UIView *aView = theViewYouWantTheLayerIn; previewLayer.frame = aView.bounds; // Assume you want the preview layer to fill the view. [aView.layer addSublayer:previewLayer]; </code></pre>
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    1. POAVFoundation, how to turn off the shutter sound when captureStillImageAsynchronouslyFromConnection?
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    1. COI don't think that would work, it would just play a "blank" sound while the shutter noise plays. Its quite possible to play 2 sounds at the same time. The other 2 methods seem workable!
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    2. COGive it a shot. I'm not confident it will work, but here's to hoping!
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