AVAudioPlayer volume is low (How to set volume from speaker) - iphone

Question

I use AVAudioPlayer for playing sounds but when playing, the sound volume is very low.
I done a search and found many codes about adding session property or session category but I'm wondering how to use it.
-(void) playVoice: (NSString *) path
{
if([path isEqualToString:#""] == NO)
{
//Initialize the AVAudioPlayer.
NSData *soundData= [NSData dataWithContentsOfFile:path];
NSError *error;
audioPlayer= [[AVAudioPlayer alloc] initWithData:soundData error:&error];
if (error)
{
NSLog(#"Error in audioPlayer: %#",
[error localizedDescription]);
} else {
audioPlayer.delegate = self;
NSLog(#"total time=%f", self.audioPlayer.currentTime);
self.PlayStatusSlider.maximumValue= audioPlayer.duration;
myTimer= [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:#selector(changeAudioProgress) userInfo:nil repeats:YES];
[audioPlayer prepareToPlay];
[audioPlayer setVolume:1.0];
[audioPlayer play];
}
}else{
// NSLog(#"ErrorDownloading");
}
}
- (void) configureAVAudioSession
{
//get your app's audioSession singleton object
AVAudioSession* session = [AVAudioSession sharedInstance];
//error handling
BOOL success;
NSError* error;
//set the audioSession category.
//Needs to be Record or PlayAndRecord to use audioRouteOverride:
success = [session setCategory:AVAudioSessionCategoryPlayAndRecord
error:&error];
if (!success) NSLog(#"AVAudioSession error setting category:%#",error);
//set the audioSession override
success = [session overrideOutputAudioPort:AVAudioSessionPortOverrideSpeaker
error:&error];
if (!success) NSLog(#"AVAudioSession error overrideOutputAudioPort:%#",error);
//activate the audio session
success = [session setActive:YES error:&error];
if (!success) NSLog(#"AVAudioSession error activating: %#",error);
else NSLog(#"audioSession active");
}
but it is not working for me. Witch part is wrong? How should I use it?

Answer 1

You have to set your audio session to default to speaker.
To anyone coming across this question now:
private var configureAudioSessionError: NSError?
let audioSession = AVAudioSession.sharedInstance()
do {
try audioSession.setCategory(AVAudioSessionCategoryPlayAndRecord, with: .defaultToSpeaker)
try audioSession.setActive(true)
} catch let error as NSError {
configureAudioSessionError = error
}