IPhone, Audio MP3 or M4A audio file plays no sound - iphone

Question

I'm trying to play a sound method within the object didSelectedIndex UITableViewController
The audio files are files with extension m4a, but I also tried with mp3 files and the result does not change.
Below I post the code that I have implemented in the method of TableViewController:
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
NSString *soundFilePath = [NSString stringWithFormat:#"%#/testaudio.m4a", [[NSBundle mainBundle] resourcePath]];
NSURL *soundFileURL = [NSURL fileURLWithPath:soundFilePath];
NSLog(#"soundFileURL %#",soundFileURL);
NSError *error;
AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithContentsOfURL:soundFileURL error:&error];
if(!player){
NSLog(#"ERRORE: %#",error);
}
[player setDelegate:self];
[player prepareToPlay];
[player play];
}
I also tried directly on the device and it still does not play any sound.
I also added a class AVSession as follows:
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setActive:YES error:nil];
The result did not change, does anyone know what the problem is?

Answer 1

Try this (tested):
Set a property for your AVAudioPlayer object in your .m:
#property(strong, nonatomic) AVAudioPlayer *player;
Then add this in your:
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *soundFilePath;
if ((soundFilePath = [[NSBundle mainBundle] pathForResource:#"testaudio" ofType:#"m4a"]))
{
NSURL *soundFileURL = [NSURL fileURLWithPath:soundFilePath];
NSError *error;
self.player = [[AVAudioPlayer alloc] initWithContentsOfURL:soundFileURL error:&error];
if(self.player)
{
[self.player setDelegate:self];
[self.player prepareToPlay];
[self.player play];
}
else
{
NSLog(#"ERRORE: %#", error);
}
}
}
You don't need AVAudioSession in your case.