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AudioStreamBasicDescription Struct (AudioToolbox ...
https://docs.microsoft.com/en-us/dotnet/api/audiotoolbox.audiostreambasicdescription
This data structure is used to describe the contents of these audio packets and contains information like the sample rate used for the audio samples, the format of the individual audio packets, the number of channels in the packets and the bits per channel, and so on. This structure is filled in with the information when reading or decoding data.
Apple Developer Documentation
https://developer.apple.com/documentation/coreaudiotypes/audiostreambasicdescription
A sample is single numerical value for a single audio channel in an audio stream. A frame is a collection of time-coincident samples. For instance, a linear PCM stereo sound file has two samples per frame, one for the left channel and one for the right channel. A packet is a collection of one or more contiguous frames. A packet defines the ...
ios - Example of AudioStreamBasicDescription for 16hz ...
https://stackoverflow.com/questions/35191058/example-of-audiostreambasicdescription-for-16hz-16bit-mono-format-as-wav-file
Example of AudioStreamBasicDescription for 16hz, 16bit mono format as WAV file. Ask Question Asked 5 years, 11 months ago. Active 4 years, 9 months ago. Viewed 2k times 0 I'm having trouble with creating a description for the above format and have tried a number of things but keep getting an invalid param when trying to record. ...
Core Audio: a quick example using Extended Audio File ...
https://vboehm.net/2017/01/core-audio-a-quick-example-using-extended-audio-file-services/
Core Audio: a quick example using Extended Audio File Services. ... Zeroing out the AudioStreamBasicDescription structure before populating the specific fields is a good idea, as with some formats we don’t know (and can’t know) every single field in advance and need to set those to zero anyway.
How to resemple pcm data in iOS | Apple Developer Forums
https://developer.apple.com/forums/thread/70694
I want to use AudioConverterFillComplexBuffer to convert sample rate for a pcm buffer(32k to 44.1k). But i didn't know why the voice seems changed(too many noise).
Apple Developer Documentation
https://developer.apple.com/documentation/coreaudiotypes/1572097-audiostreambasicdescription_flag
AudioStreamBasicDescription Flags ; Language: Language: Swift ; Objective-C ; API Changes: None; Enumeration Audio Stream Basic Description Flags. Standard flags ... k Linear PCMFormat Flags Sample Fraction Mask. k Audio Format Flags Are All Clear. k Linear PCMFormat Flag Is Float. k Linear PCMFormat Flag Is Big Endian.
GitHub - syedhali/EZAudio: An iOS and macOS audio ...
https://github.com/syedhali/EZAudio
Relevant Example Projects. EZAudioWaveformFromFileExample (iOS) EZAudioWaveformFromFileExample (OSX) ... a client format (always linear PCM, this is the format // coming from another component like the EZMicrophone's audioStreamBasicDescription property), // and a EZRecorderFileType constant representing either a wav …
Topic: AirPlay problem, sample rate? | Politepix
https://www.politepix.com/forums/topic/airplay-problem-sample-rate/
In that method (which uses ExtAudioFile api) it reads a wav file, including the sample rate, then sets a AudioStreamBasicDescription object with the sample rate to indicate the format for the returned samples. If I set that to 44100, the audio will actually sound fine on Airplay BUT the file is not complete; there is less than 1/2 the audio ...
OutputAudioQueue Class (AudioToolbox) | Microsoft Docs
https://docs.microsoft.com/en-us/dotnet/api/AudioToolbox.OutputAudioQueue
See the StreamingAudio sample program in monotouch-samples for an example program. Constructors OutputAudioQueue(AudioStreamBasicDescription) ... (AudioStreamBasicDescription, AudioChannelLayout) Enables offline rendering by setting the audio format and optionally the channel layout to use when rendering.
iOS: How to resample audio(PCM data) using Audio Unit at ...
https://www.py4u.net/discuss/75267
This means that you should get the system AudioStreamBasicDescription (sysASBD) then put converter units between the system and the parts of your chain that need something different. So for audio play through with 8K sampleRate you would do this: ReomoteIO(mic) -> converter -> your8Kprocessing -> converter -> RemoteIO(out).
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