Limits on iPhone push notification sounds?

Question

Does anybody know of any limitations on the sounds that can be played when an iPhone app receives a push notification? Specifically, is there a maximum sound length?

Al

Answer 1

I don't know for sure, but based on various API limitations I would guess the length would be 30 sec. max. And yes, the volume of the ringer is the volume of the sound. Same with vibrate mode

Answer 2

You may have to consider "Notification Payload" for that.You can also have Custom Alert Sounds. See this:Notification Payload

Answer 3

Updated reference to Apple's documentation for 30 seconds.

https://developer.apple.com/library/prerelease/content/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/SupportingNotificationsinYourApp.html#//apple_ref/doc/uid/TP40008194-CH4-SW10

Answer 4

I have tested the maximum length of a push notification audio alert, which not surprisingly turned out to be 30 seconds. Any longer audio files will result in the built-in Tri-tone alert being played instead.

Answer 5

Here's the reference in Apple's documentation (30 seconds is correct): https://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/IPhoneOSClientImp/IPhoneOSClientImp.html#//apple_ref/doc/uid/TP40008194-CH103-SW6