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Audio Queue Services - Apple Developer
https://developer.apple.com/documentation/audiotoolbox/audio_queue_services
Audio Queue Services enables you to record and play audio in linear PCM, in compressed formats (such as Apple Lossless and AAC), and in other formats for which users have installed codecs. Audio Queue Services also supports scheduled playback and synchronization of multiple audio queues and synchronization of audio with video. Note
Using Audio - Apple Developer
https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/MultimediaPG/UsingAudio/UsingAudio.html
Define a callback function for managing audio queue buffers. The callback uses Audio File Services to read the file you want to play. (In iOS 2.1 and later, you can also use Extended Audio File Services to read the file.) Instantiate the playback audio queue using the AudioQueueNewOutput function.
ios - Audio Queue Service Example using How to record ...
https://stackoverflow.com/questions/18162471/audio-queue-service-example-using-how-to-record-sound-in-mp3-format-in-iphone
The reason behind this is clearly explained in core audio documentation (page no 51 of core audio pdf). iOS contains the recording codecs listed in Table 2-5. As you can see, neither MP3 nor AAC recording is available. This is due to the high CPU overhead, and consequent battery drain, of these formats.
Recording With Audio Queues. [macOS] — Using …
https://medium.com/programming-for-music/recording-with-audio-queues-cf41d274c9ea
Audio Queue (in AudioToolbox/AudioQueue.h ). The main API for our recording application. Generally, this set of APIs are used to set up recording and playback queues. A queue is a set up of buffers...
Recording Audio on iOS with Examples - Dolby.io
https://dolby.io/blog/recording-audio-on-ios-with-examples/
AudioToolbox AVAudioRecorder AVAudioRecorder is the simplest audio recording API in iOS. You basically tell iOS the path where you want to record to and any audio format settings, such as stereo/mono and AAC/WAV. You then can start and stop the recording at the time when you want.
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