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What Is Core Audio? - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/WhatisCoreAudio/WhatisCoreAudio.html
Core Audio data structures, declared in the CoreAudioTypes.h header file, can describe linear PCM at any sample rate and bit depth. Audio Data Formats goes into more detail on this topic. In OS X, Core Audio expects audio data to be in native-endian, 32-bit floating-point, linear PCM format.
What is PCM Audio? [Format Difference. Expert Explaned]
https://samplerateconverter.com/educational/pcm-audio
Raw stream may contains PCM or DSD audio data, that compressed or not. The audio data is splitted to portions (frames). Each frame (group of frames) have a header. As rule, the meta-information contains in the header. Is PCM audio better? PCM audio one of audio formats. In TV applications it's considered as a lossless one. So, PCM provides maximum …
ios core audio: modifying aurioTouch to save pcm data ...
https://stackoverflow.com/questions/6146211/ios-core-audio-modifying-auriotouch-to-save-pcm-data
As an exercise, I'm trying to modify aurioTouch so that it saves the first 60 seconds of PCM that come in through the mic. I'm avoiding higher-level libs because I want to build some low-latency real-time processing on top of this.
Core Audio Format Specification - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Reference/CAFSpec/CAF_spec/CAF_spec.html
Linear PCM (pulse-code modulated) data is the most common noncompressed audio data format. For all linear PCM formats, the mFramesPerPacket field equals 1 by definition. The mBytesPerPacket field is then equal to the number …
Introduction into iOS Core Audio. Before starting playing ...
https://blog.devgenius.io/introduction-into-ios-core-audio-1ec9ea15c47c
Most Core Audio services use and manipulate audio in linear pulse-code-modulated (linear PCM) format, the most common uncompressed digital audio data format. Digital audio recording creates PCM data by measuring an analog audio signal’s magnitude at regular intervals (the sampling rate ) and converting each sample to a numerical value.
Supported Audio File and Data Formats in OS X
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/SupportedAudioFormatsMacOSX/SupportedAudioFormatsMacOSX.html
playing raw PCM audio data
https://social.msdn.microsoft.com/forums/windowsapps/en-US/fcb0fdf9-f09c-440c-95a0-248e89d052c7/playing-raw-pcm-audio-data
Yes this is possible by using WASAPI (core audio APIs) and C++ Cx. Alternatively you could write a custom Media Element source and generate your PCM audio in the source. The plug-in would be written in C++ Cx but could be called from any WinRT supported language. Check out the link below: Win32 and COM for Metro style apps (multimedia)
A Little About Digital Audio and Linear PCM
http://onedayitwillmake.com/blog/2012/12/a-little-about-digital-audio-and-linear-pcm/
Most Core Audio services use and manipulate audio in linear pulse-code-modulated (linear PCM) format, the most common uncompressed digital audio data format. Digital audio recording creates PCM data by measuring an analog (real world) audio signal’s magnitude at regular intervals (the sampling rate ) and converting each sample to a numerical …
Core Audio Essentials - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/CoreAudioEssentials/CoreAudioEssentials.html
In Core Audio, you use two universal data types to represent any audio data format. These types are the data structures AudioStreamBasicDescription ( Listing 2-4) and AudioStreamPacketDescription ( Listing 2-5 ), both declared in the CoreAudioTypes.h header file and described in Core Audio Data Types Reference.
Common Tasks in OS X - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/ARoadmaptoCommonTasks/ARoadmaptoCommonTasks.html
Converting Audio Data Formats. Core Audio uses linear PCM as an intermediate format, which permits many permutations of conversions. To determine whether a particular format conversion is possible, you need to make sure that both a decoder (format A to linear PCM) and an encoder (linear PCM to format B) are available.
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