How to play system sound on iOS without vibration?

Question

In the documentation of AudioServicesPlayAlertSound, it says I can disable vibration when playing a sound:

iPhone—plays the specified sound. If the user has configured the Settings application for vibration on ring, also invokes vibration. However, the device does not vibrate if your app’s audio session is configured with the AVAudioSessionCategoryPlayAndRecord or AVAudioSessionCategoryRecord audio session category.

However, I still feel vibration on my iPhone 4S (iOS 5.1.1) even after setting my category to "play and record". It rings and vibrates at the same time.

#import <AudioToolbox/AudioServices.h>
#import <AVFoundation/AVAudioSession.h>

NSError* error;
[[AVAudioSession sharedInstance]
    setCategory:AVAudioSessionCategoryPlayAndRecord
    error:&error];
if (error == nil) {
    AudioServicesPlayAlertSound(1000);
}

I've also tried AudioServicesPlaySystemSound, but the results are the same. The reason why I want to disable vibration is because I am making an app where the user must place her phone far away and the phone should not topple over due to vibration.

Answer 1

I tested this with my iPhone 4s and it does exactly what you want.

   NSError* error;
    [[AVAudioSession sharedInstance]
     setCategory:AVAudioSessionCategoryPlayAndRecord
     error:&error];
    if (error == nil) {
        SystemSoundID myAlertSound;
        NSURL *url = [NSURL URLWithString:@"/System/Library/Audio/UISounds/new-mail.caf"];
        AudioServicesCreateSystemSoundID((__bridge CFURLRef)(url), &myAlertSound);

        AudioServicesPlaySystemSound(myAlertSound);

    }

Use AudioServicesCreateSystemSoundID to create a SystemSoundID using the filename of the system sound. Then use AudioServicesPlaySystemSound() to play the sound with no vibration. Filenames of the other system sounds can be found at the link below.

http://iphonedevwiki.net/index.php/AudioServices