Top "Core-audio" questions

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

Framework not found AudioUnit

Been banging my head agains the wall for awhile now. My Xcode project went a little haywire while refactoring, and …

iphone frameworks linker core-audio
iOS multitasking for an Audio Recording application

I am writing an application that records audio. I am looking into the feasibility of supporting multitasking while doing audio …

iphone ios core-audio
How to make a simple EQ AudioUnit (bass, mid, treble) with iOS?

does anyone know how to make a simple EQ audio unit (3 bands - low, mid, hi) with iOS ? I know …

iphone ios core-audio signal-processing audiounit
Forcing iPhone Microphone as Audio Input

I am developing an iOS application (targetted specifically for iPhone, at the moment) that requires the application to record audio …

ios core-audio microphone
How do I get the filesystem path for a resource on iPhone?

On the iPhone I need to get the path for the resource. OK, done that, but when it comes to …

iphone core-audio audioqueueservices
How can I record AMR audio format on the iPhone?

A voice recorder doesn't need uncompressed Linear PCM audio. Compressed AMR would do fine. The iPhone framework built for recording …

iphone ios core-audio audio-recording amr
AudioObjectGetPropertyData to get a list of input devices

How do I utilize AudioObjectGetPropertyData in OS X to retrieve a list of the system's input devices? I currently have …

macos core-audio
iOS: Audio Units vs OpenAL vs Core Audio

Could someone explain to me how OpenAL fits in with the schema of sound on the iPhone? There seem to …

ios core-audio openal audiounit
How to correctly read decoded PCM samples on iOS using AVAssetReader -- currently incorrect decoding

I am currently working on an application as part of my Bachelor in Computer Science. The application will correlate data …

ios audio core-audio pcm avassetreader
iOS 7 SDK not abiding background audio

I have done a lot of research, both on Google and StackOverflow. All the answers I found do not work …

objective-c ios7 core-audio avaudioplayer avplayer