What is Tinymix?

Tinymix is used to get more details on the audio configuration parameters like gain etc. These configurations can also be modified using this command. An Audio path map is required to be able to make the correct configurations.

What is tiny ALSA?

TinyALSA is a small library to interface with ALSA in the Linux kernel. The aims are: a. Provide a basic pcm and mixer API. If it’s not absolutely needed, don’t add it to the API.

What is AudioFlinger Android?

AudioFlinger. We know that AudioFlinger (Sometimes called AF) is the core of the entire audio system in Android. It is a system service which starts during boot and enables the platform for audio related use-cases in the following ways. 1. Provide the access interface for the upper layer for using Audio.

What is audio Hal?

Android’s audio Hardware Abstraction Layer (HAL) connects the higher-level, audio-specific framework APIs in android. The Audio HAL defines the standard interface that audio services call into. It must be implemented for the audio hardware to function correctly.

What is Hal Android?

Android HAL (Hardware Abstraction Layer) is one of the lower layers in the Android OS software stack (right above the Linux kernel). It is a hardware specific implementation that provides an interface between system services (e.g., camera software) and the hardware drivers for that service (e.g., camera driver).

What is ALSA driver?

The Advanced Linux Sound Architecture (ALSA) provides kernel driven sound card drivers. It replaces the original Open Sound System (OSS). Besides the sound device drivers, ALSA also bundles a user space driven library for application developers. They can then use those ALSA drivers for high level API development.

What is HAL file in android?

HAL is an interfacing layer through which Android service can place a request to device. Uses functions provided by Linux system to service the request from android framework. A C/C++ layer with purely vendor specific implementation. Packaged into modules (.so) file & loaded by Android system at appropriate time.

What is a binder in Android?

Binder is an Android-specific interprocess communication mechanism, and remote method invocation system. Android process can call a routine in another Android process, using binder to indentify the method to invoke and pass the arguments between processes.

Why is HAL used?

The main purpose of a HAL is to conceal different hardware architectures from the OS by providing a uniform interface to the system peripherals.

What is ALSA sequencer?

The ALSA sequencer interface is designed to deliver the MIDI-like events between clients/ports. The routing between clients can be changed dynamically, so the application can handle incoming or outgoing MIDI events regardless of the devices or the application connections.

What is Android HAL service?

Hardware abstraction layer (HAL). A HAL defines a standard interface for hardware vendors to implement, which enables Android to be agnostic about lower-level driver implementations. Using a HAL allows you to implement functionality without affecting or modifying the higher level system.

What does tiny play do in PCM file?

Basically tinyplay does 1) opens the file /dev/sndpcmC{Cardnumber}D{Devicenumber}c{capture/playback}. 2) sets the hardware parameters of the opened device. 3) Opens the wav file and does writes the pcm buffers of size specified in params using pcm_write.

How to configure tinymix to record system audio?

It appears your device has a TWL6040 codec. Have a look at this chip’s documentation to see how its mixer routing works; I’d guess you have to enable some “Capture Mixer”s, probably set some “MUX_UL”s, and maybe set the “Analog Capture Route”s. CL. CL. Thanks for contributing an answer to Stack Overflow!

What kind of music player is tinyplay used for?

Tinyplay is used for performing playback tests. It is a very simple music player and is used to check if the audio configurations are correct. Tinyplay can only play wav format 44.1kHz and 48kHz sampling rate. Eg:- tinyplay test.wav

What does tiny play do in TI OMAP and Abe?

In TI Omap and ABE is used the backend opening will be failed if the backend widgets are not enabled properly using tinymix. Basically tinyplay does 1) opens the file /dev/sndpcmC{Cardnumber}D{Devicenumber}c{capture/playback}.