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Audio Queue Services - Apple Developer
https://developer.apple.com/documentation/audiotoolbox/audio_queue_services
This document describes Audio Queue Services, a C programming interface in the Audio Toolbox framework, which is part of Core Audio. An audio queue is a software object you use for recording or playing audio. An audio queue does the work of: Connecting to audio hardware. Managing memory. Employing codecs, as needed, for compressed audio formats
Recording With Audio Queues. [macOS] — Using …
https://medium.com/programming-for-music/recording-with-audio-queues-cf41d274c9ea
We explain the creation of a command line application that can record sound coming in from the default input device attached to our Mac. For example, from the internal mic or from a USB-attached…
Playing Back With Audio Queues. [macOS] — Using …
https://medium.com/programming-for-music/playing-back-with-audio-queues-c8e9137bc850
For example, we can find out the number of packets within 1 second audio. It is 44,100 / 1,152 ( mSampleRate / mFramesPerPacket ), i.e. approximately 38.28125 packets for 1 second of audio...
macos - How to use AudioQueue to play a sound for Mac …
https://stackoverflow.com/questions/4863811/how-to-use-audioqueue-to-play-a-sound-for-mac-osx-in-c
format.mSampleRate = vinfo->rate; format.mChannelsPerFrame = vinfo->channels; // The number of bytes depends on the channel number. format.mBytesPerPacket = format.mBytesPerFrame = 2 * vinfo->channels; // times two, for 16bit OSStatus status = -1; AudioQueueRef queue; // Create the audio queue with the desired format.
Core Audio Essentials - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/CoreAudioEssentials/CoreAudioEssentials.html
For example, Audio Queue Services specifies a template for a callback—that you can implement—that lets you get and react to messages when an audio queue object property changes. This callback template, declared in the AudioQueue.h header file, is shown in Listing 2-1. Listing 2-1 A template for a callback function
Audio Queue example · GitHub
https://gist.github.com/andormade/1360885/6b239efc7bc59a7dd038b9543b98bdd6afd40559
Audio Queue example Raw main.c # include <stdlib.h> # include <math.h> # include <AudioToolbox/AudioQueue.h> # include <CoreAudio/CoreAudioTypes.h> # include <CoreFoundation/CFRunLoop.h> # define NUM_BUFFERS 3 # define BUFFER_SIZE 4096 # define SAMPLE_TYPE short # define MAX_NUMBER 32767 # define SAMPLE_RATE 44100 unsigned …
macos - Selecting input mic for Mac Audio Queue …
https://stackoverflow.com/questions/6184751/selecting-input-mic-for-mac-audio-queue-services
I am currently using the Mac OS X Audio Queue Services API for audio recording and sound analysis. Works fine using the default mic input. If there is more than one microphone plugged into the Mac (USB, headset jack, etc.), is there a way to programmatically enumerate and select which mic is to be used for audio input within an application?
Audio Queue example · GitHub
https://gist.github.com/1360885
Audio Queue example Raw main.c # include <stdlib.h> # include <math.h> # include <AudioToolbox/AudioQueue.h> # include <CoreAudio/CoreAudioTypes.h> # include <CoreFoundation/CFRunLoop.h> # define NUM_CHANNELS 2 # define NUM_BUFFERS 3 # define BUFFER_SIZE 4096 # define SAMPLE_TYPE short # define MAX_NUMBER 32767 # define …
Make Bluetooth Audio Easy : Mac App Store Story
https://apps.apple.com/us/story/id1452707630
Your Mac can even run a script when a particular device connects. For example, you might want to automatically queue up a playlist whenever you connect your Powerbeats Pro to your Mac. If you remember the old days of Bluetooth headphones, ToothFairy may …
Pine Player 4+ - Mac App Store
https://apps.apple.com/us/app/pine-player/id1112075769?mt=12
4. Mass Storage of Audio Queue for Real Time Converting Pine Player prevents damage of sound quality by having a high-powered Audio Queue for processing excessive amount of digital data. Therefore, it takes a considerable amount of memory compared to other music players. Even with all these functions, Pine Player is a free app.
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