why is video volume low using MPMoviePlayerController on iPhone - ios

My app uses MPMoviePlayerController to record videos and play them back. It works fine on iPad, but the volume is very low on iPhone. I tried setting up a AVAudioSession as well and setting the path to speaker, but that doesn't seem to help. How can I fix this? I am running iOS 7 devices

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Why isn't the iOS browser playing audio from this MP4 video?

I have 100+ videos encoded in H.264 video with MP3 audio for a HTML5-video project, but the Audio won't work on iOS. (No sound, but working video). It works perfectly on Android. They all have the same encoding setup, but here's one of the videos
Googled for several days and can't seem to find any known problems with iOS and MP3-audio. What's wrong?
Check to see if the ringer of hardware device is turned off. If you flip the ringer off and on and the audio turns off and on, then that is the cause.

Background audio not work with Ionic3 + Videogular2 on iOS

I'm using Videogular2 in an Angular/Cordova/Ionic3 project, where I play mp3 audio live streams. All works good with mp3 and mp4, on browser and iOS simulator.
When the user Lock The Screen in iOS Device I expect that the audio continues to play in a background mode, but on IOS when the user Lock The Screen audio stop to play.
I've tested on XCODE 8 to set 'Capabilities' tab adding 'audio' parameter, I've added cordova-plugin-backgroundaudio to the project without success.
On iOS Simulator it works well, the problem occurs only on iOS Device.
Tested on iPhone 6 & iPad 3.
I'm using:
iOS 10.3.3
XCODE 8.3.3
Ionic 3.12.1
Videogular2 5.4.11
No one else used videogular2 on cordova/ionic?
In iOS app audio won't be playing in background when the device is locked. For that you have to enable the background mode for the app. I had faced the same issue in one of my application (I was using different audio plugin).
In order to enable background mode in iOS you can use below plugin
https://ionicframework.com/docs/native/background-mode/. When you start playing the audio you just need to call backgroundMode.enable() to keep it playing in background. When you leave the audio player page if want you can disable background mode to avoid unnecessarily keeping the background mode on by calling backgroundMode.disable().
Additionally you need to enable the background audio feature in xcode project settings as shown in below link.
https://koenig-media.raywenderlich.com/uploads/2016/09/BM-EnableAudioInBG.png

Unity - audio files play badly on iPhone and iPad

Suddenly all my sounds sound really weird on the iphone and ipad, but they still sound ok in the Editor.
On the devices they sound similar to if they were played through a bad telephone connection over speaker - or if they were recorded with poor quality. And again, this only happens on the iPhone and iPad devices, in Unity itself it's all fine.
Things I tried already:
I have 3D sound disabled on the audio files
on the AudioSource, I have Bypass Effects, ByPass Listener Effects and Bypass Reverb Zones all set to 'true'
Doppler Level is set to 0
A while ago this was all good, and it may have happened when I updated to Unity 4.5.4 and XCode 6.0.1.
But I can't say that for sure.
Any ideas what that could be?
found it!
The problem was that in the Audio Settings 'Volume' was set 100 for some strange reason.
So - on the MAC the volume was set to small that's why it played ok - but on the iPhone it tried playing the loud sound so the speakers just went mad....

Music plays when volume turn off

I have next issue:
I use AudioServicesPlaySystemSound to play short sound in my app. But something happens wrong: when I turn off volume on the device - sound still playing.
I found this issue on devices with iOS 6.0 and greater. On iOS 5 device all right.
Can anybody point me what I do wrong?
Thanks.

iPad MoviePlayer refuses to play video until device restart

I have a very strange bug in a shipping iPad/iPhone app that I can't fix/track down.
My app plays video in a standard MPMoviePlayerController but with the interface hidden and my own buttons to play and stop.
That works fine but sometimes, after a few times of use, my app refuses to play any further video. This happens only on the iPad (in iOS 3.2.x), on the iPhone (in iOS 4.x) everything works fine all the time. Strangely enough, even after I quit my app, after I start it again it still refuses to play video. It doesn't save the video state, and it does reload the video. Only after I restart the iPad it starts working again.
If my iPad is in a "don't play video" state I can debug my app from Xcode and there isn't anything different other than the fact that the movie doesn't play but stays paused indefinitely.
The loadState property reports as MPMovieLoadStatePlayable, but the playbackState property stays MPMoviePlaybackStatePaused however many times I sent it a "play" command.
There is nothing I can do in my app (like choosing another video) to make the video work again.
The videos are 600 x 400 H.264 and are played in a view that is larger than full screen so I can show them full screen (without black bars) on the iPad without needing two different versions for iphone/ipad, because the devices have different aspect ratios.
There is plenty of RAM available (> 60 MB). Other apps that play video (iTunes/YouTube/streamToMe) play fine, but use the standard MoviePlayer interface/controls and don't of course don't play bigger than full screen.
This all makes me suspect this is an Apple bug. I haven't yet tested this in a beta version of iOS, and if so I couldn't talk about it either.
Anybody seen this behaviour? And has a possible solution? Thanks!
In this thread Ipad MPMovieplayerController video loads but automatically pauses when played it appears they solved the issue by using player.useApplicationAudioSession = NO;. Give it a try!
This is a quite common bug with MPMoviePlayerController on iPad OS 3.2.x
After a few runs of any app, the movies fail to play and if you move the scrubber you can see the frames but you can't still play the video for more than one frame at a time!
Besides you may notice a great memory consumption, due to the fact that some apps start receiving memory warnings more often than normal.
Finally you may prove this is a system problem (and not specifically an app problem) buy trying to run other apps that use the same framework, e.g. "ABC News". The issues cannot be seen with other apps that use UIWebView for instance (e.g. the ones based on You Tube videos).
The only solution is to re-boot the device. This works until next reboot.
Carlo

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