how to boost volume on android

Extends:http://blog.csdn.net/alvinhuai/article/details/8955127,http://mikespook.com/2010/11/android-%e5%ae%9e% E6%97%b6%e8%8e%b7%e5%8f%96%e9%ba%a6%e5%85%8b%e9%a3%8e%e8%be%93%e5%85%a5%e9%9f%b3%e9%87%8f%e7%9a%84%e4%bb%a3%e7 %a0%81/A few days ago to do a recording and get the volume size of the module, today write a demo and share. If you have a better way to remind me of a message, thank you.First, the record

The Android audio curve call is set down from the ui. There are different UIS Based on stream audio, which are divided into 7 and 15 steps, corresponding to the actual step 100. For the conversion process, see the volIndexToAmpl function in AudioPolicyManagerBase. cpp. 4.1 The Calling process is different from the previous one, and the principle is the same. I think the previous version is linear, and the new version is a three-segment line. Why is it

Linux kernel. Perform one of the following 4 commands to generate a. config file:(1) Make config: configured in text format;(2) Make Menuconfig: configured as a character interface menu;(3) Make Oldconfig: will give the default value of the text format configuration;(4) Make xconfig: Configuring the Linux kernel as a graphical interface will require QT installation, "Apt-get install Libqt-dev"It is recommended to use make menuconfig, which will generate Zimage files (Linux kernel binaries) afte

From: http://www.inandroid.cn/bbs/thread-132546-1-1.htmlObtain the ringtones and volume of the Android mobile phone through a program. Similarly, you can set the ringtone and volume easily!The method for setting the volume is also very simple. audiomanager provides the method:Publicvoidsetstreamvolume (intstreamtype, i

ArticleDirectory Learn about audiomanager Introduction to audiomanager Learn about audiomanager The audiomanager class is located in the Android. Media package, which provides operations to control the volume and audible mode. Introduction to audiomanager There are too many methods for mail to audiomanager. Here are only a few common methods: Method: adjustvolume (INT direction, int flags)Expla

The realization of thought:The Windowmanagerservice loop reads the following key information and distribution forms. Filtering of messages in the Phonewindowmanager.interceptkeybeforequeueing method.Therefore, the implementation is to listen to the current key in the Interceptkeybeforequeueing method before the message is distributed to the volume key, assuming the current state is the lock screen state. And the key is the

Implementation ideas:The Windowmanagerservice Loop reads the following key messages and distributes them to the window, filtering the messages in the Phonewindowmanager.interceptkeybeforequeueing method before the message is distributed. Therefore, the implementation of the message before the distribution of the Interceptkeybeforequeueing method to listen to the current key is the volume down key, if the current state is the lock screen state, and the

Default volume frameworks \ base \ media \ Java \ Android \ media \ audiomanager. Java /** @ Hide default volume index values for audio streams */ Public static final int [] default_stream_volume = new int [] { 4, // stream_voice_call 7, // stream_system 4, // stream_ring 8, // stream_music 4, // stream_alarm 4, // stream_notification 7, // stream_rjth_sco 7, /

Http://www.mikespook.com/index.php/archives/762 Android has some interesting applications, such as blowing skirts and blowing balloons. The microphone input volume is obtained in real time and then processed accordingly. Many people on the Internet have asked how to deal with this problem, but there are still some answers, but there is no actual code. After a simple exploration, I wrote a demo and tried i

Audiorecorddemo () {mLock = new Object (); public void Getnoiselevel () {if (Isgetvoicerun) {LOG.E (TAG, "Still on record"); Return } Maudiorecord = new Audiorecord (MediaRecorder.AudioSource.MIC, Sample_rate_in_hz, Audioformat.chann El_in_default, Audioformat.encoding_pcm_16bit, buffer_size); if (Maudiorecord = = null) {LOG.E ("sound", "Maudiorecord initialization failed"); } isGetvoicerun = true; New Thread (New Runnable () {@Override public void run () {maudio

Android audio and video goes deep into thirteen OpenSL ES to create a music player, which can pause and adjust the volume (with source code download), androidopensl Project addressHttps://github.com/979451341/OpenSLAudioOpenSL ES is a public audio API developed based on NDK, that is, the underlying C language. It can be used to achieve standardized, high-performance, and low-response-time audio functions.Th

Android has some interesting applications, such as blowing skirts and blowing balloons. The microphone input volume is obtained in real time and then processed accordingly. How can we obtain the sound size during the recording process? There is an instance below Java code: Package EOE. demo; import android. media. audioformat; import

My project is cocos2d-x-3.7.1 project, with the command line (Cocos run-p Android) when packaging the error:Running: ' D:\develop\adt-bundle-windows-x86-20140321\apache-ant-1.9.3\bin\ant 'Clean debug-f d:\deveop\test\proj.android\build.xml-dsdk.dir= "D:\develop\adt-bUndle-windows-x86-20140321\sdk "'Workaround:Enter the Cocos2d-x-3.7.1\tools\cocos2d-console\plugins\project_compile directory. Locate the build_android.py file, open it with the Edit tool,

the IP and subnet masks using the Linux command Ifconfig, and set the gateway with the route command.This chapter only describes how to install Android on the Ok6410-a Development Board. Of course, readers can also choose other boards, or they can do Linux drivers directly on the phone. Because of the different development boards and mobile phone installation of the Android method has a certain difference,

First, you must obtain the system's sound service permissionsandroid:name= "Android.permission.MODIFY_AUDIO_SETTINGS"/>Then it's the variable that declares the control sound.// Call VolumeYou can then use the get and set methods of the Audomanager to get the sound and set the sound.current =// Get Music volume current = Maudiomanager.getstreamvolume ( Audiomanager.stream_music); /* Set volume function

(Isgetvoicerun) {LOG.E (TAG, "Still on record"); Return } Maudiorecord = new Audiorecord (MediaRecorder.AudioSource.MIC, Sample_rate_in_hz, Audioformat.chann El_in_default, Audioformat.encoding_pcm_16bit, buffer_size); if (Maudiorecord = = null) {LOG.E ("sound", "Maudiorecord initialization failed"); } isGetvoicerun = true; New Thread (New Runnable () {@Override public void run () {maudiorecord.startrecording (); short[] buffer = new Short[buff

. Because the Linux kernel is based on the GPL protocol, Android is based on the Apache Licence 2.0 protocol. So Google played a "traversal" to move the sensitive code that was originally in the Linux driver up a level, so that these sensitive code to get rid of the GPL protocol, those who do not want to open source Linux drivers are not necessary to open source.For some special requirements for some hardware, it may be necessary to access some user s

The MediaPlayer class for music media playback in Android is defined as followsFinal MediaPlayer Mprain = mediaplayer.create (this, r.raw.rain);The file is Res/raw/rain.mp3//raw I created it myself in Androidstudio.My own usage here is that there is only one button, click Use, if it stops on playback, otherwise start playing, attach code1Mprain.setlooping (true);2Buttonrain.setonclicklistener (NewButton.onclicklistener () {3 @Override4 Pu

value) netmask (mask) upRoute add default GW (address value) Dev eth0Querying the current IP configuration and routing table of the Development Board/system/busybox/sbin/ifconfig/system/busybox/sbin/routeSetting up IP and gatewaysSH netconfig.sh (with a single IP address to the front)Turn off the network card device/system/busybox/sbin/ifconfig eth0 DownSet a new MAC address/system/busybox/sbin/ifconfig eth0 hw ether 08:90:00:a0:90:80Turn on the network card device/system/busybox/sbin/ifconfig

to put the business logic into the HAL Library . Step 2 : Write HALThe HAL library is an ordinary Linux Library (*.so ) file. However, this type of library file has an interface. The SYM variable is module_info through the HAL. Service Library is defined in this interface by the ID positioning hallibrary the. Step 3 : Write the Service LibraryAlthough this step is not required, the new HAL architecture requires us to do so. the Service library is also a Linux library . This step is more flexib