Re: No sound through speaker
Re: No sound through speaker
- Subject: Re: No sound through speaker
- From: David Rowland <email@hidden>
- Date: Fri, 17 Apr 2015 15:36:09 -0700
Check Apple’s documentation for Audio Sessions,
https://developer.apple.com/library/ios/documentation/Audio/Conceptual/AudioSessionProgrammingGuide/Introduction/Introduction.html <https://developer.apple.com/library/ios/documentation/Audio/Conceptual/AudioSessionProgrammingGuide/Introduction/Introduction.html>
Perhaps it will help.
David
> On Apr 17, 2015, at 1:32 PM, Ron Wagner <email@hidden> wrote:
>
>
>
> I am receiving reports from users that the sound generated from our app isn’t always coming out of the iPhone speaker, but will always come out of the ear buds when they are plugged in. This is an intermittent problem, though when the problem is presenting itself, it can remain for days.
>
> We are generating sound with two APIs: AVAudioPlayer and AVSpeechSynthesizer, used in different parts of the app, not at the same time. I have remotely logged for some users info that the APIs are in fact being called, and that there are no errors being returned.
>
> The users also report that sound from other apps such as YouTube and other sound affects apps, etc., play through the speakers fine when our app is exhibiting this problem.
>
> I have done some testing and found that sound will play through the earbuds regardless of the position of the mute switch on the side of the phone above the volume buttons, but will not play through the speaker (with the earbuds unplugged) if the mute switch is in the muted position. I asked the users if they might have had the mute switch in the muted position, and they state it was not in the mute position, and cycling the mute switch on and off had no affect.
>
> Seeing as how we have not implemented a “cone of silence” feature in our app, I’m out of ideas of where to look and how to debug this problem. Since the sound always plays through earbuds when plugged in, I can’t see how it would be our code.
>
> Has anyone else experienced sound not working in one app, or have any ideas of why sound would not play through the speaker?
>
> Thanks
> Ron Wagner
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