dolby audio android

The video recording function is coming soon. In AndroidSDKThere are related classes: Android. Media. mediarecorder, of course, because the simulator does not provide the necessary hardware facilities, it cannot be implemented during the learning process. Media can play files from anywhere: an actual file resource, a file in the system, or an available network link.The following describes howTo play an available media

Whether it is text, image or sound, must be organized and stored in a certain format, so that the player will know how to parse this piece of data, for example, for the original image data, our common format is YUV, Bitmap, and for audio, the simplest common format is the WAV format.WAV format, like bitmap, are Microsoft developed a file format specification, they all have a similarity, is the whole file is divided into two parts, the first part is "F

The playback of multimedia files (music and video) in Android is very familiar with MediaPlayer, but now it's time to say another way to play music files Soundpool, compared with MediaPlayer to play music, Occupies a lot of system resources, loading resources also takes time, so it is not suitable for frequent playback of small audio files, such as control focus, the need to play small

To use mediaplayer to play audio and video, you must first understand the status of mediaplayer. The following figure shows the status of the mediaplayer provided by Google. You only need to understand the status of the mediaplayer. It won't go wrong. For more information, see the APIS provided by Google. To use the audio playing program written by mediaplayer to be robust, you must not only understand th

This article is the seventh article in my "Android Audio development" series, the previous article generally describes the basic overview of the Android OpenSL ES API, which tells you what the framework has, what you can do, and what you can't do. This article focuses on some of the key design and concepts of the OPENSL ES framework and its API interfaces, so tha

http://blog.csdn.net/kangear/article/details/44939429Android Bottom Development Audio HALIn the Android audio bottom-up debugging-based on the Tinyalsa to "throw away the innate complexity of Android, return to the nature of embedded Linux" describes how to debug audio drive

description: The setAudioSource () method in MediaRecorder sets the sound source. Generally, MediaRecorder. AudioSource is passed in.MICSpecifies the recording sound from the microphone. SetOutputFormat sets the format of the recorded audio file. (Note that you must set the encoding format before setting it. Otherwise, an exception is thrown) SetAudioEncoder: Set the encoding format SetAudioEncodingBitRate (int bitRate) sets the encoding bit rate Set

When it comes to audio applications, the first thing to think about is the music player. Some players can play streaming media, and some can play local music files. With the evolution of the Android platform, more advanced audio APIs are needed. Fortunately, Google has added this API to support low-latency audio stream

1.1 AudioflingerIn the above frame diagram, we can see that Audioflinger (hereinafter referred to as AF) is the core and difficulty of the entire audio system. As an audio hub in an Android system, it is also a system service that restarts (providing access to the upper layer) to the boot (to manage audio devices throu

http://blog.csdn.net/xuesen_lin/article/details/88050681.1 AudioflingerIn the above frame diagram, we can see that Audioflinger (hereinafter referred to as AF) is the core and difficulty of the entire audio system. As an audio hub in an Android system, it is also a system service that restarts (providing access to the upper layer) to the boot (to manage

How to compile the Opus audio codec library for AndroidThe Opus audio codec library is the next generation of the Speex audio codec library. It has made great progress in terms of codec performance and quality. Opus compilation is very simple, but the official did not provide a detailed Android version Compilation Guid

In-depth analysis of Android audio AudioSystem and androidaudiosystem AudioSystem is an interface class provided by AudioPolicyService and AudioFlinger. One of Android Audio systems: How does AudioTrack exchange with AudioFlinger? In the Audio Subsystem of

Because just contact COCOS2DX, a lot of knowledge point is not very clear, online download example program, in Win32 no sound, but transplant on Android have voice.Online check, is due to different platforms supported by different audio formats caused by the audio file to transcode.Reference Official Document: http://cn.cocos2d-x.org/article/index?type=cocos2d-xu

Mobile phones have sound mode, sound, mute and vibration, and even vibration plus sound, these are the basic functions of mobile phones. On Android phones, we can also use the sound management interface provided by the Android SDK to manage the phone's sound mode and adjust the sound size, which is the Audiomanager of Android.The Audiomanager class is located on Android