dolby audio android

Reprinted, please indicate the source and author of the article! Source: http://blog.csdn.net/xl19862005 By xandy) I. Preface Previously has been in the blog Park mixed (Address: http://www.cnblogs.com/xl19862005), recently moved to csdn, due to the previous few months just new job, for a long time did not update the blog, sorry! Today, I want to share with you an android audio port communication project th

The previous articles show how to capture audio using the Audiorecord provided by Android in the Java layer, play audio with audiotrack, and encode and decode using MEDIACODEC, which are Java layer APIs provided by Android , whether it is acquisition, playback, or codec, these API interfaces need to copy

The project needs to get the real-time volume value of the video playback, the simplest way is to listen to the audio output, get the audio output stream, and then convert.When investigating, first find this blog:http://blog.csdn.net/jinzhuojun/article/details/33748031The output stream data is recorded in real time using the newly added MediaRecorder.AudioSource.REMOTE_SUBMIX parameter in API 19.Because you

with the audio, here's another term we need to know: sample rate.When converting an analog signal to a digital format, the sample rate indicates how often a sound waveform sample is drawn to convert to a digital signal.In most cases, 44100Hz is often used because of the same sample rate as CD audio.Disclaimer (Must read!) ): All of the tutorials provided in this blog are translated from the Internet for learning and communication purposes only and sh

first frame, indicates the current audio playback time and the first frame of the video difference between the value Where the variable is passed maudioplayer->getmediatimemapping (int64_t *realtime_us, int64_t *mediatime_us) {Mutex::autolock Autolock (MLock) got The difference between the two indicates how much of this packet of PCM data has been played. The video in Stagefright is based on the difference between the two timestamps derived

Li huaming himiOriginal, reprinted must be explicitly noted:Reprinted from[Heimi gamedev block]Link: http://www.himigame.com/android-game/312.html Many kids shoes say that after my code is run, clicking home or back will cause a program exception. If you have encountered this, you certainly haven't carefully read the himi blog, in article 19th, himi specifically wrote about the causes and solutions of these errors. I have added my remarks on this blo

Introduction to the Android Audio FrameworkBasic audio knowledge What are the important attributes of sound? Loudness) The sound level is the volume of all kinds of sounds that humans can perceive. The sound intensity is directly related to the amplitude of the acoustic wave. Pitch) The tone is related to the frequency of the voice. When the voice freq

Android game background music audio volume control, android volume control Game sound effects are the music we use to play games. This is also a must-have for every game. However, if the background music you play is interrupted, we can use getCurrentPosition () this method is used to determine the audio playback offset

Audio Design for Android gamesAudio Design for Android games 1. Basic Knowledge: A. setVolumeControlStream (AudioManager. STREAM_MUSIC );T) Public final void setVolumeControlStream (int streamType)Added in API level 1 Suggests an audio stream whose volume shocould be changed by the hardware volume controls.The suggeste

Android java-layer audio analysis and understanding (3) Call-related Multiple apps in Android need to support audio playback. When multiple applications need to output audio at the same time, is it all output? Or output one of them? If one of them is output, which one is out

binary binary. PCM represents the amplitude of a piece of audio in an audio file that passes over time. Android supports PCM audio data in WAV files.WAV fileWav,mp3 etc is our more common audio format, different encoding format for the original

During the first Android development, I realized such profound version differences for the first time. My audiorecordCodeThe test was successful at Samsung s5670. Xiaomi, duowei d210t test failed. The error message is as follows: 04-01 12:58:44. 368: E/audiorecord (19808): cocould not get audio input for record source 1 04-01 12:58:44. 368: E/audiorecord-JNI (19808): Error creating audiorec

If you have an Android device, you will notice that when you press the increase or decrease button, the different volume settings you control depend on the application you are running. During a call, you control the volume of the input audio stream. In a video player, you control the volume of the Video audio. On the home screen, you control the volume of the rin

IOS and Android audio Development Summary Recently, because the project needs to change the sound, it is not difficult to learn and Process audio. However, it is still tedious (more than expected) While my mind is still excited, I will summarize my thoughts and record them. This article mainly introduces three parts: 1. How to change VOICE 2,

Website: http://blog.csdn.net/dadoneo/article/details/8252933From:http://www.linuxidc.com/linux/2012-04/57902.htm================================================Android is a multitasking system and the audio system is a competitive resource. Prior to Android2.2, there was no built-in mechanism to solve the problem of multiple programs competing for audio, and 2.2

Android development: Audio Playback /* * Android development: Audio Playback * Beijing Android Club group: 167839253 * Created on: 2011-8-23 * Author: blueeagle * Email: liujiaxiang@gmail.com */ Audio Playback There are two ways