Here I need to develop an IOS app consists of record,play and edit the audio.I done the Audio Recording and Playing by using the AVAudioRecorder and AVAudioPlayer.
But I want how to edit the audio,and save it. Is there any way to do.kindly help me
Recording:
AVAudioRecorder *audioRecorder = [[AVAudioRecorder alloc]
initWithURL:audioFileURL
settings:audioSettings
error:nil];
[audioRecorder record];
Playing:
AVAudioPlayer *audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:audioFileURL error:nil];
[audioPlayer play
Here I have included the sample code for recording and palying the audio, but how can i edit the audio linke in this Yotube link: https://www.youtube.com/watch?v=LWz2x9dXpsM
Audio recording can be done using AVFoundation framework of apple but editing of audio is kinda difficult process. So I suggest you to do it using open source library projects in iOS.
You can use The Amazing Audio Engine which provides great quality of audio recording, Audio Filtering and Audio Mixing. The Amazing Audio is build in Non-ARC and is very light, thread safe.
You can also download the sample of Amazing Audio Engine from Github.
Check this link once.In this example how to play audio and how to record the audio using AVAudioplayer Framework.
http://www.appcoda.com/ios-avfoundation-framework-tutorial/
You can use Extended Audio File Services. have a look at the reference for ExtAudioFileRead & ExtAudioFileWrite (they have sample code) then you can open one audio file read it, trim it and then write the new one.Go here
Extended Audio File Services Reference
Related
I want to play an mp3 file that is stored in a server
Ex:-mp3 link
I have tried the other relevant answers but i didn't get the output.
Can anyone please tell me how to play an mp3 that is stored on the web.
Apple's documentation for AVPlayer states the following:
AVPlayerplayer works equally well with local and remote media files
Apple's documentation for AVAudioPlayer states the following:
Use this class for audio playback unless you are playing audio captured from a network stream
-(IBAction)playTapped {
AVPlayer *player = [[AVPlayer playerWithURL:[NSURL URLWithString:#"http://www.mp3.com/mp3file.mp3"]] retain];
[player play];
}
I have been trying to do this for a few days now using AVFoundation as well as trying to use MPMoviePlayerViewController. The closest I can get is allowing one to play at a time. I would like to think that this is possible because of Facetime. However, I know this is a little different because there is no separate video file.
Any ideas would help, and thanks.
I'm not sure where this is documented, but to get AVCaptureVideoPreviewLayer and MPMoviePlayerViewController to play together at the same time you need to set a mixable audio session category first.
Here's one way to do that:
AVAudioSession* session = [AVAudioSession sharedInstance];
[session setCategory:AVAudioSessionCategoryPlayback error:nil];
UInt32 mixable = 1;
AudioSessionSetProperty(kAudioSessionProperty_OverrideCategoryMixWithOthers, sizeof(mixable), &mixable);
[session setActive:YES error:nil];
See the Audio Session Programming Guide and Audio Session Cookbook for more info.
Have you tried to play video on one thread and recording video on another? That would allow both of them to run while maintaining their separation.
I'm using the following to play an m4a file:
NSString *path = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent: fileName];
SystemSoundID soundID;
NSURL *filePath = [NSURL fileURLWithPath:path isDirectory:NO];
AudioServicesCreateSystemSoundID((CFURLRef)filePath, &soundID);
AudioServicesPlaySystemSound(soundID);
It works fine on the simulator but I hear nothing on the device. Sounds files I'm using all stay in the bundle. Here is what filePath looks like from the device:
file://localhost/var/mobile/Applications/418945F3-3711-4B4D-BC65-0D78993C77FB/African%20Adventure.app/Switch%201.m4a
Is there an issue with the file path or any thing different I need to do for the device?
Just as a sidenote - I was having the exact same problem and spent probably close to an hour on converting files to the correct format, etc.. Yet the problem was the "mute" switch on the iPad. So even though the volume was up, and I could hear other sounds on the iPad, because the mute switch was turned on, it wasn't playing system sounds.
To add to the confusion, this app uses text-to-speech and the volume coming from the dictation was perfectly fine, it was only the sounds coming from AudioServicesPlaySystemSound() that weren't being played.
I had trouble with this too. Finally I realised it was because AudioServices can only play audio with the following constratints.
Sound files that you play using this
function must be:
- No longer than 30 seconds in duration
- In linear PCM or IMA4 (IMA/ADPCM) format
- Packaged in a .caf, .aif, or .wav file
From Apple docs: http://developer.apple.com/library/ios/#documentation/AudioToolbox/Reference/SystemSoundServicesReference/Reference/reference.html
You might want to use the AVAudioPlayer instead of AudioServices.
The following code will take an audio file (.m4a) and play the audio file 1 time. Don't forget to release "audioPlayer" when you're done with it.
NSString *urlAddress = [[NSBundle mainBundle] pathForResource:#"filename" ofType:#"m4a"];
NSURL *url = [NSURL fileURLWithPath:urlAddress];
NSError *error;
AVAudioPlayer *audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
audioPlayer.numberOfLoops = 0;
if (audioPlayer == nil)
{
NSLog([error description]);
}
else
{
[audioPlayer play];
}
Hope this example helps you with playing audio on the actual device. It might also be a good idea to increase the device audio when the file is playing.
Note: You will need to add the AVFoundation framework to your project if you have not already done so. As well as import the header file.
#import <AVFoundation/AVFoundation.h>
Update:
From Apple's Core Audio Overview Document
Audio Session Services
Audio Session Services lets you manage audio sessions in your application—coordinating the audio behavior in your application with background applications on an iPhone or iPod touch. Audio Session Services consists of a subset of the functions, data types, and constants declared in the AudioServices.h header file in AudioToolbox.framework.
The AVAudioPlayer Class
The AVAudioPlayer class provides a simple Objective-C interface for playing sounds. If your application does not require stereo positioning or precise synchronization, and if you are not playing audio captured from a network stream, Apple recommends that you use this class for playback. This class is declared in the AVAudioPlayer.h header file in AVFoundation.framework.
Start by error-checking your returns. Is filePath nil? Do either of the AudioServices functions return an error? The most likely cause is case-sensitivity. The iPhone filesystem is case sensitive while the Mac is not. But the first step in debugging is to look at the errors the system is providing.
The simulator uses regular QuickTime for playback, so it's easy to have media assets which work in the sim, but fail on the device due to missing / unsupported codecs. The test is if you can play the file at all on the device, eg through Safari or the iPod app.
HI all
i am playing a video(.mp4 format) without sound (i mean it doesn't have sound it is a mute video ) and in the background i am playing an audio file (.mp3 format) when i play my code through simulator it works fine as i want like when i tap on the video it is just mute but behind i am playing the audio so for user it seems that video has this sound but when i installed my code in device and play video than it doesn't work like so it play video but without sound than how can i play an audio and a video together in the above format ?
actually we are not just playing a single video or audio file it just comes from an array by choosing randomly and same for the audio file so we cann't do this i think so any other idea for it ??
Should we use another format for audio aur video for doing this thing ??
thanks for the help
Balraj verma
The problem is that the default Audio Session does not allow audio mixing.
In the Reference Library (Working with Movie Players) they say you should use a mixable category configuration for your audio session, for example the Ambient category. In the Application Delegate:
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
NSError *setCategoryError = nil;
[audioSession setCategory:AVAudioSessionCategoryAmbient error: &setCategoryError];
Apple's documentation states that some audio formats are not suited to be played back simultaneously because of hardware restrictions. See Playing Multiple Sounds Simultaneously for more details.
A solution for you would be to use PCM encoded audio which should allow simultaneous playback.
I would like to add that I managed to play two mp3 audio files at the same time on 3G and 3GS iPhones. Which shouldn't be possible according to documentation but worked for me.
You can rather use the an instance of AvAudioPlayer in a new thread. Use the following link to see how does this work
http://www.mobileorchard.com/easy-audio-playback-with-avaudioplayer/
create an instance of MPMoviePlayer to start playback of videos.
Hope this will work.
You should combine the audio and video using some video editing software like iMovie or Windows Movie Maker. Using the software to "composite" audio and video together is not a good idea and adds additional overhead, synchronization issues, etc.
As far as I know, you can't play AVAudioPlayer and MPMoviePlayer at the same time.
My boss seems to think there's a way to play audio files via a built-in QT interface that comes up with a modal UI, much like address book framework does.
Also, the mail app pops up a QT modal player to play attached audio files and then hides itself when done.
I've done a good 2 hours of research and I cannot find any pre-built UI for playing audio. I understand that I can do it via AVAudioPlayer, but that still requires I build a custom UI, which is fine, but we're looking for visual familiarity and consistency.
I just now found MPMusicPlayerController, but it appears to only play itunes media, not media from file paths.
So, is there a pre-built audio player UI?
MPMoviePlayerController can also be used to play audio files (although it's not recommended):
MPMoviePlayerController *mPlayer = [[MPMoviePlayerController alloc] initWithContentURL: [NSURL URLWithString:#"http://www.freeaudioclips.com/music1/Sound_Effects/austinmail.wav"]];
// Show Audio player just to test it out
if (mPlayer)
{
[mPlayer play];
}
Read Apple's Documentation and for more details.