I have record and playback routines. see code below. The only problem is that the playback on my device is very low. The volume is okay on the simulator and I have the device volume all of the way up. Is there something else I need to set.
Here's the record code:
NSArray *pathComponents = [NSArray arrayWithObjects:
[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject],
#"MyAudioMemo.m4a",
nil];
NSURL *outputFileURL = [NSURL fileURLWithPathComponents:pathComponents];
// Setup audio session
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
// Define the recorder setting
NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc] init];
[recordSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
[recordSetting setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];
// Initiate and prepare the recorder
recorder = [[AVAudioRecorder alloc] initWithURL:outputFileURL settings:recordSetting error:NULL];
recorder.delegate = self;
recorder.meteringEnabled = YES;
[recorder prepareToRecord];
[recorder record];
And the playback:
player = [[AVAudioPlayer alloc] initWithContentsOfURL:recorder.url error:nil];
[player setDelegate:self];
player.meteringEnabled = YES;
player.volume = 1.0;
[player play];
Make your speaker default as there is some time problem audio go througg other routes
[session setCategory:AVAudioSessionCategoryPlayAndRecord withOptions:AVAudioSessionCategoryOptionDefaultToSpeaker error:&sessionError];
Try AVAudioSessionCategoryAmbient mode it has high volume when you play your sound
[session setCategory:AVAudioSessionCategoryAmbient error:&setCategoryError];
Related
I am trying to make a voice recorder which behaves as following
Record voice
Pause the voice
Listen to the recording
Continue Recording
I tried doing this:
Initialize the Recorder
NSString *cacheDir = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject];
NSString *dataPath = [cacheDir stringByAppendingPathComponent:#"/AudioFiles"];
if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath])
{
NSError *error=nil;
[[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error];
}
NSArray *pathComponents = [NSArray arrayWithObjects:
dataPath,
[NSString stringWithFormat:#"%#.m4a",self.FileName],
nil];
NSURL *outputFileURL = [NSURL fileURLWithPathComponents:pathComponents];
// Setup audio session
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
// Define the recorder setting
NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc] init];
[recordSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:22050.0] forKey:AVSampleRateKey];
[recordSetting setValue:[NSNumber numberWithFloat:32000.0] forKey:AVEncoderBitRateKey];
[recordSetting setValue:[NSNumber numberWithInt: 1] forKey:AVNumberOfChannelsKey];
[recordSetting setValue:AVAudioBitRateStrategy_Variable forKey:AVEncoderBitRateStrategyKey];
// Initiate and prepare the recorder
recorder = [[AVAudioRecorder alloc] initWithURL:outputFileURL settings:recordSetting error:NULL];
recorder.delegate = self;
recorder.meteringEnabled = YES;
[recorder prepareToRecord];
Record
[recorder record];
Pause the record
[recorder pause];
Play the record
playingSession = [AVAudioSession sharedInstance];
[playingSession setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
[playingSession setActive: YES error:nil];
NSError *error = nil;
player = [[AVAudioPlayer alloc] initWithContentsOfURL:recorder.url error:&error];
NSLog(#"Error initializing player: %#", error);
[player setDelegate:self];
[player play];
So I get the following error
Error Domain=NSOSStatusErrorDomain Code=1685348671 "(null)"
Any idea how can I make this work?
I have recording application and it is working fine for m4a files. Now issue is only arise when I close application without stopping AVAudioRecorder.
Here is my code for record function:
- (IBAction)recordTapped:(id)sender {
// Set the audio file
NSArray *pathComponents = [NSArray arrayWithObjects:
[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject],
#"MyAudioMemo.m4a",
nil];
NSURL *outputFileURL = [NSURL fileURLWithPathComponents:pathComponents];
// Setup audio session
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setCategory:AVAudioSessionCategoryRecord error:nil];
// Define the recorder setting
NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc] init];
[recordSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
[recordSetting setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];
// Initiate and prepare the recorder
recorder = [[AVAudioRecorder alloc] initWithURL:outputFileURL settings:recordSetting error:nil];
recorder.delegate = self;
recorder.meteringEnabled = YES;
[recorder prepareToRecord];
[session setActive:YES error:nil];
// Start recording
[recorder record];
}
And this is my stop recorder function:
- (IBAction)stopTapped:(id)sender {
[recorder stop];
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
[audioSession setActive:NO error:nil];
}
So now when I start recording and after some recording, I tap on stop button and then try to play recording. It works fine.
Now if I start recording and then without stopping I double tap on home button and from app list I closes app. Then I restart app and try to play that previously recorded file, It won't work.
So is there any method to resolve this issue?
I a button that records audio when isNotRecording is false and plays audio when isNotRecording is true. Here is my code in the viewDidLoad function:
NSArray *pathComponents = [NSArray arrayWithObjects:
[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject],
#"MyAudioMemo.m4a",
nil];
NSURL *outputFileURL = [NSURL fileURLWithPathComponents:pathComponents];
// Setup audio session
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
// Define the recorder setting
NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc] init];
[recordSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
[recordSetting setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];
// Initiate and prepare the recorder
recorder = [[AVAudioRecorder alloc] initWithURL:outputFileURL settings:recordSetting error:NULL];
recorder.delegate = self;
recorder.meteringEnabled = YES;
[recorder prepareToRecord];
Here is my code to play the sound or record:
if (isNotRecording==NO){
if (player.playing) {
[player stop];
}
if (!recorder.recording) {
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setActive:YES error:nil];
// Start recording
[recorder record];
}
}
else{
if (!recorder.recording){
player = [[AVAudioPlayer alloc] initWithContentsOfURL:recorder.url error:nil];
[player setDelegate:self];
[player play];
}
}
And here is my code to stop the playing/recording:
[recorder stop];
[player stop];
Now, everything works almost perfectly (i.e. I can record and play sounds fine). However, there are two issues. The major one is that after I close out the app and try to play the sound, it does not have a sound to play. I want it to play the previous recording. That is my main issue, but it would also be great if I could reduce the lag from when I press the button and the sound plays. Sometimes, if I press the button and release it very fast, no sound plays at all. Any suggestions are greatly appreciated. However, again, the main issue I need fixed is that the recording doesn't save after I close out the app.
I think what's happening is that when you initialize your AVAudioRecorder when the view loads then that will delete any existing file at the target location, irrespective of whether you start recording at that stage. So I think that's how the file is going missing.
Simplest may be just not to call [recorder prepareToRecord]; when you do, as I suspect that's when your recording is getting deleted.
Or you might want to use a temporary file while recording and move it to the final location when you're notified that the recording is finished, in order to avoid that issue. Code is something like:
NSArray *pathComponents = [NSArray arrayWithObjects:
[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject],
#"MyAudioMemoTemp.m4a",
nil];
NSURL *outputFileURL = [NSURL fileURLWithPathComponents:pathComponents];
// Setup audio session
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
// Define the recorder setting
NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc] init];
[recordSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
[recordSetting setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];
// Initiate and prepare the recorder
recorder = [[AVAudioRecorder alloc] initWithURL:outputFileURL settings:recordSetting error:NULL];
recorder.delegate = self;
recorder.meteringEnabled = YES;
[recorder prepareToRecord];
if (isNotRecording==NO){
if (player.playing) {
[player stop];
}
if (!recorder.recording) {
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setActive:YES error:nil];
// Start recording
[recorder record];
}
}
else{
if (!recorder.recording){
NSArray *pathComponents = [NSArray arrayWithObjects:
[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject],
#"MyAudioMemo.m4a",
nil];
NSURL *inputFileURL = [NSURL fileURLWithPathComponents:pathComponents];
player = [[AVAudioPlayer alloc] initWithContentsOfURL:inputFileURL error:nil];
[player setDelegate:self];
[player play];
}
}
- (void)audioRecorderDidFinishRecording:(AVAudioRecorder *)recorder
successfully:(BOOL)flag
{
if (successfully) {
// Copy temp file used during recording to replace that used when playing
//
pathComponents = [NSArray arrayWithObjects:
[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject],
#"MyAudioMemo.m4a",
nil];
NSURL *targetFileURL = [NSURL fileURLWithPathComponents:pathComponents];
NSError *error = nil;
[[NSFileManager defaultManager] removeItemAtURL:targetFileURL error:&error];
error = nil;
[[NSFileManager defaultManager] copyItemAtURL:recorder.url toURL:targetFileURL error:&error];
}
}
I am developing an app in which I am recording sound with AVAudioRecorder with .CAF format, everything is fine but my problem is that when I am playing the recorded sound then its playing in very low volume. Somehow The volume of sound is going to least level. Tried so many solution but didn't find a solution to resolution, if anybody has any idea then please tell me, its very important for me.
Below is the code of snippet
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
[session setActive:YES error:nil];
// Define the recorder setting
recordSetting = [[NSMutableDictionary alloc] init];
[recordSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
[recordSetting setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];
NSArray *pathComponents = [NSArray arrayWithObjects:
[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject],
[NSString stringWithFormat:#"%#.caf",#"temp"],
nil];
NSURL *outputFileURL = [NSURL fileURLWithPathComponents:pathComponents];
recorder = [[AVAudioRecorder alloc]initWithURL:outputFileURL settings:recordSetting error:nil];
recorder.delegate = self;
recorder.meteringEnabled = YES;
[recorder recordForDuration:5];
[recorder prepareToRecord];
[recorder record];
Ok, you need to do bit more to achieve that. First, import
#import <AudioToolbox/AudioServices.h>
then, inside your viewDidLoad method. put this code
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord error: nil];
UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;
AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,
sizeof (audioRouteOverride),&audioRouteOverride);
Using latest SDK it will look like this:
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord withOptions:AVAudioSessionCategoryOptionDefaultToSpeaker error:nil];
Swift code:
let recordingSession:AVAudioSession = AVAudioSession.sharedInstance()
try! recordingSession.setCategory(AVAudioSessionCategoryPlayAndRecord, withOptions:.DefaultToSpeaker)
use this for record session:
let session = AVAudioSession.sharedInstance()
try! session.setCategory(
AVAudioSessionCategoryPlayAndRecord,
withOptions:AVAudioSessionCategoryOptions.DefaultToSpeaker)
NSArray *pathComponents = [NSArray arrayWithObjects:
[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject],
#"MyAudioMemo.m4a",
nil];
NSURL *outputFileURL = [NSURL fileURLWithPathComponents:pathComponents];
// Setup audio session
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
// Define the recorder setting
NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc] init];
[recordSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:44100.0] forKey:AVSampleRateKey];
[recordSetting setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];
// Initiate and prepare the recorder
recorder = [[AVAudioRecorder alloc] initWithURL:outputFileURL settings:recordSetting error:NULL];
recorder.delegate = self;
recorder.meteringEnabled = YES;
[recorder prepareToRecord];
[recorder prepareToRecord];
recorder.meteringEnabled = YES;
//Start the actual Recording
[recorder record];
[recorder updateMeters];
level = [recorder peakPowerForChannel:0];
NSLog(#"%f",level);
i have used this code in viewDidload() method to record a sound sound get in level.
i want to call the deleget method when device get the sound.
-(void)audioRecorderDidFinishRecording:(AVAudioRecorder *)recorder successfully:(BOOL)flag
{
NSLog(#"Level is %f",level);
}
this method not called.
i am setting recorder delegate in .h file but not called this method why this is happening.
help me to do this.
Thanks in advance.
Are you actually storing the AVAudioRecorder instance somewhere? If you are not then it is likely deallocated by the time the above code finishes.
Try this
-(void)initialiceAudio{
NSArray *pathComponents = [NSArray arrayWithObjects:
[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject],
#"MyAudioMemo.m4a",
nil];
NSURL *outputFileURL = [NSURL fileURLWithPathComponents:pathComponents];
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
// Define the recorder setting
NSMutableDictionary *recordSetting = [[NSMutableDictionary alloc] init];
[recordSetting setValue:[NSNumber numberWithInt:kAudioFormatMPEG4AAC] forKey:AVFormatIDKey];
[recordSetting setValue:[NSNumber numberWithFloat:5000.0] forKey:AVSampleRateKey];
[recordSetting setValue:[NSNumber numberWithInt: 2] forKey:AVNumberOfChannelsKey];
// Initiate and prepare the recorder
recorder = [[AVAudioRecorder alloc] initWithURL:outputFileURL settings:recordSetting error:NULL];
recorder.delegate = self;
recorder.meteringEnabled = YES;
[player setVolume: 1.0];
[recorder prepareToRecord];
}
-(IBAction)record:(id)sender {
if (!recorder.recording) {
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setActive:YES error:nil];
recordBtn.selected=YES;
tabBtn.selected = YES;
tabBtn.userInteractionEnabled = NO;
// Start recording
[recorder record];
} else {
}
}
-(void) audioRecorderDidFinishRecording:(AVAudioRecorder *)avrecorder successfully:(BOOL)flag{
recorder = nil;
player = nil;
spinnerView = nil;
UploadAudioViewController *upload = [[UploadAudioViewController alloc]initWithNibName:#"UploadAudioViewController" bundle:nil];
NSLog(#"recorder url----%#",recorderurl);
upload.audioURL = recorderurl;
[self.navigationController pushViewController:upload animated:YES];
}
and make sure - you used AVAudioRecorderDelegate and AVAudioPlayerDelegate