Top "Core-audio" questions

Core Audio is a low-level API for dealing with sound in Apple's macOS and iOS operating systems.

How to program a real-time accurate audio sequencer on the iphone?

I want to program a simple audio sequencer on the iphone but I can't get accurate timing. The last days …

iphone audio core-audio timing openal
.m4a is considered audio/m4a or audio/mp4

I'm trying to make an audio upload to S3 and I'm a little confused what I should declare my mime …

ios audio core-audio
FaceTime volume issue in Mavericks

We have an audio application for Mac OSX which is music player with some audio effects . Ever since we upgraded …

macos cocoa core-audio osx-mavericks facetime
How to record sound produced by mixer unit output (iOS Core Audio & Audio Graph)

I'm trying to record sound produced by a mixer unit output. For the moment, my code is based on the …

iphone ios core-audio audio-recording audiounit
iOS: How to read an audio file into a float buffer

I have a really short audio file, say a 10th of a second in (say) .PCM format I want to …

ios file core-audio
OSStatus NSOSStatusErrorDomain

I received the following error when I get the property using AudioSessionGetProperty(kAudioSessionProperty_CurrentHardwareSampleRate,&size, &myAudioDescription.mSampleRate) Error …

objective-c ios core-audio avaudiosession
AVAudioPlayer resetting currently playing sound and playing it from beginning

I'm having an issue using AVAudioPlayer where I want to reset a player if it's currently playing and have it …

iphone audio core-audio avaudioplayer
How do I synthesize sounds with CoreAudio on iPhone/Mac

I'd like to play a synthesised sound in an iPhone. Instead of using a pre-recorded sound and using SystemSoundID to …

iphone objective-c cocoa core-audio
MPMediaItem and iTunes Match

I have an app that uses the iPod Library API to access the song database in iOS. With the release …

objective-c ios core-audio ipod icloud
Extracting Amplitude Data from Linear PCM on the iPhone

I'm having difficulty extracting amplitude data from linear PCM on the iPhone stored in a audio.caf. My questions are: …

iphone ios core-audio