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Audio HAL | Android Open Source Project
https://source.android.com/devices/audio/implement#:~:text=Android%27s%20audio%20Hardware%20Abstraction%20Layer%20%28HAL%29%20connects%20the,implemented%20for%20the%20audio%20hardware%20to%20function%20correctly.
Audio | Android Open Source Project
https://source.android.com/devices/audio/
Android audio architecture defines how audio functionality is implemented and points to the relevant source code involved in the implementation. Figure 1. Android audio architecture Application framework The application framework includes the app code, which uses the android.media APIs to interact with audio hardware. Internally, this code calls …
Android Audio Framework Architecture - Bits & Qubits
http://gopinaths.gitlab.io/post/android-audio-framework-architecture/
The Android framework supports audio effects such as Acoustic Echo Cancellation (AEC), Noise Suppression (NS) andAutomatic Gain Control (AGC). This effect can be added in the preprocessing library. The audio HAL needs to support this effect.
Audio Framework CTS Verifier | Android Open Source …
https://source.android.com/compatibility/cts/audio-framework
Audio Framework CTS Verifier This new suite of tests requires human intervention and some external hardware including an Audio Loopback Dongle , a USB reference microphone and external speakers . For devices without 3.5 mm (⅛”) headset port, the user will be able to skip the test and mark it as successful.
A brief comparison of Android audio frameworks
http://teragonaudio.com/article/Android-audio-framework-comparison.html
A brief comparison of Android audio frameworks I wanted to offer a quick bit of advice regarding playing sounds in Android. First, most developers will find that the MediaPlayer and SoundPool widgets are equally frustrating to work with. MediaPlayer is …
Audio | Android NDK | Android Developers
https://developer.android.com/ndk/reference/group/audio
Request an audio device identified device using an ID. On Android, for example, the ID could be obtained from the Java AudioManager. The default, if you do not call this function, is AAUDIO_UNSPECIFIED, in which case the primary device will be used. Available since API level 26.
Real Time Sound Processing on Android
https://nsr.cse.buffalo.edu/wp-content/uploads/2016/10/rtdroid-sound-jtres16.pdf
layer. The Android audio framework employs a push-based opera-tion for playback where the audio data is pushed down and buffered in the native layer, rather than the audio driver pulling audio data when it is ready to play more data. This is a design decision made in Android which results in significant latency. Unfortunately, the An-droid framework in general, including the …
High-performance audio | Android NDK | Android …
https://developer.android.com/ndk/guides/audio/
App developers and middleware providers should target either Oboe or AAudio as the native audio interface. AAudio was developed as a lightweight, native Android alternative to the OpenSL ES library. The AAudio API is smaller and easier to use than OpenSL ES.
Android Media Framework Overview
https://people.cse.nitc.ac.in/jerrin/files/android_media_framework.pdf
Android Media Framework Overview Jerrin Shaji George . 1. Simplify application development 2. Share resources in a multi-tasked environment ... Audio type : So that media service can route the audio accordingly • The audio/video frames are decoded inside the media server and they get output directly to the Surface/Audio Flinger
android - Audio Framework: stream, strategies, devices ...
https://stackoverflow.com/questions/4737458/audio-framework-stream-strategies-devices
I am trying to get a better understanding of android audio framework (froyo onwards in particular).. I've almost got the distinction into streams.The AudioFlinger maps each stream into a "strategy" and then routes a strategy to the proper "device" (BT, Headset, Speaker..)
Audio in Android | Android Programming by Wideskills
http://wideskills.com/android/android-multimedia/audio-in-android
Multimedia is concerned with processing of audio/video input and output. There are certain functionalities which are meant to be satisfied by multimedia framework: Storing audio and video section of media; Playback audio and video; Record audio and video; If we see the architecture of android framework we can see media framework in libraries.
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