A word of warning: ‘Mumble for iOS’ 1.2.3 is incredibly unusable on iOS 7.1 – if you depend on it, you should probably not update to iOS 7.1 just yet.
There is a problem with audio subsystem, which is causing it to endlessly try to restart itself. This manifests itself via iOS’s ‘red bar’ (signalling that an app is using background audio) toggling itself on and off very fast (even when inside the app!), making the app unusable.
We’ve identified the problem, and we’re working on a fix. If you’ve already updated to iOS 7.1, fear not! We’ve also found a workaround which, while inconvenient, should help you work around the issue until a proper fix has been released.
To work around the issue, you disable Echo Cancellation in the app. Here’s how:
1. In Mumble’s Preferences, navigate to ‘Advanced’ under Audio.
2. When in there, look for the ‘Audio Input’ section.
3. There should be a checkbox for Echo Cancellation. Disable it.
It can be hard when the bug is occurring. If you’re having trouble, swipe/drag the checkbox’s button to disable it.
4. Double tap your home button.
5. Swipe upwards on the Mumble app to close it.
6. Re-open Mumble. The issue should be gone.
7. If the issue is still present, navigate to ‘Echo Cancellation’ again, and check that it’s really disabled. It might not work the first time, due to the ‘red bar’ making it very hard to actually execute these steps.
We hope it works for you!
Furthermore, we’d like to note that we hope to be able to submit an updated app with this issue fixed tonight. This update will also bring some other goodies, so stay tuned.
The Mumble Team