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OMAP Audio for Android: So, what is an AudioFlinger?
https://androidaudio.blogspot.com/2010/06/so-what-is-audioflinger.html
An AudioFlinger (sorry google engineers for over simplifying) exists to handle these main responsibilities: Provide a single (stereo/mono) output path for PCM at a specified sample rate (OMAP3/4 is using 44.1KHz). I am (also) …
android audio flinger - PDF Center
https://pfizerprintcenter.com/android-audioflinger-68/
An audio framework for Linux that has also influenced other systems. FastCapture Thread within AudioFlinger that sends audio data to lower latency fast tracks and drives the input device when configured for reduced latency. Main general-purpose computer on a mobile device. For details, see audio. Plays sampled audio clips.
android - What is AudioFlinger and why does it fail TONE ...
https://stackoverflow.com/questions/11218923/what-is-audioflinger-and-why-does-it-fail-tone-prop-ack
The decoded data is written to an Audio Track through an Audio Sink, and the tracks are then mixed by the Audio Flinger's mixer thread (s) and written to an output stream (Audio Hardware). The output stream object fills up its own buffer (s) and then writes the data to the PCM output device file (which may or may not be an ALSA driver). Share
ANDROID AUDIOFLINGER PDF
https://dailysome.com/android-audioflinger-15/
Audio flinger is the system component which manages the audio from android userpsace before handing it off to the kernel driver. When modules is non-zero, it indicates that Audio Policy specifies a specific device id number. Video unavailable Playback on other websites has been disabled by the video owner. Watch on YouTube Watch on
Audio Debugging - Android Open Source Project
https://source.android.com/devices/audio/debugging
The "tee sink" is an AudioFlinger debugging feature, available in custom builds only, for retaining a short fragment of recent audio for later analysis. This permits comparison between what was actually played or recorded vs. what was expected. For privacy the tee sink is disabled by default, at both compile-time and run-time.
PulseAudio vs. AudioFlinger: Fight! – Arun Raghavan
https://arunraghavan.net/2012/01/pulseaudio-vs-audioflinger-fight/
AudioFlinger was written from scratch for Android. It provides an API for playback/recording as well as a control mechanism for implementing policy. It does not depend on ALSA, but instead allows for a sort of HAL that vendors can implement any way they choose. Applications generally play audio via layers built on top of AudioFlinger.
Android audio system(audioflinger) - SlideShare
https://www.slideshare.net/fefe7270/android-audio-systemaudioflinger
Android audio system (audioflinger) 1. 안드로이드의 모든것 분석과 포팅 정리 Android Audio System (AudioFlinger) 박철희 1 2. 1.Audio system 전체 구조 안드로이드의 모든것 분석과 포팅 정리 Application Media player App Media Recorder App Volume /mode change Application Framework Native Framework HAL Kernel 2
Android Audio's 10 Millisecond Problem: The Android …
https://superpowered.com/androidaudiopathlatency
Audio Flinger creates a RecordThread, which acts as a middleman between an application and the audio driver. Its basic job is: Obtaining the next input audio buffer from the driver's ring buffer using the Android HAL. Resampling the buffer if the application requests different sample rate than the native sample rate.
Android Audio Framework Architecture - Bits & Qubits
http://gopinaths.gitlab.io/post/android-audio-framework-architecture/
Media server The Audio Flinger The media server contains audio services, which are the actual code that interacts with your HAL implementations. The media server is located in the below path. frameworks/av/services/audioflinger This media server service can be launched in init.rc file using below command. service media /system/bin/mediaserver
Audio Terminology | Android Open Source Project
https://source.android.com/devices/audio/terminology
Single stream of audio information, usually corresponding to one location of recording or playback. downmixing Decrease the number of channels, such as from stereo to mono or from 5.1 to stereo. Accomplished by dropping channels, mixing channels, or more advanced signal processing.
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