increase call volume android

The Android program obtains and sets the ringtone and volume.Obtain the ringtones and volume of the android mobile phone through a program. Similarly, you can set the ringtone and volume easily!AudioManagermAudioManager = (AudioManager) getSystemService (Context. AUDIO_SERVICE );//

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

amplitude after initialization, and we can obtain the maximum amplitude of the source data in a short period of time directly using its getmaxamplitude method.The only possible drawback to taking the maximum value is that it is affected by extreme data. The subsequent calculation of the decibel value fluctuation is relatively large. It's just that this method is very much used by the recording application to calculate the volume level.The method retu

By learning Android Deep Exploration (Volume one) HAL and Driver Development Nineth Chapter Let me know the HAL hardware abstraction layer, why to add Hal and Android Hal Architecture in Android.Hal is a set of libraries built on Linux drivers. This library is not part of the Linux kernel, but is the application layer on top of the Linux kernel layer, the main pu

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 n

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

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,

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

obtain the amplitude after initialization, and we can obtain the maximum amplitude of the source data in a short period of time by using the getmaxamplitude method without parameter. However, the possible disadvantage of the maximum value is that the extreme data will be affected, so that the subsequent calculation of the decibel value fluctuation is relatively large. However, this method is used by many recording applications to calculate the volume

sampling. // If you want to use this value for operations, we recommend that you use sendmessage to throw it and process it in handler. Log.d("spl", String.valueOf(v / (float) r)); } ar.stop(); } publicvoidpause() { // Call in onpause of the activity that calls this thread to release the microphone when the activity is paused

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

system. But it is more convenient to get the amplitude after initialization, so we can obtain the maximum amplitude of the getmaxamplitude data in a short period of time by using its parameter-free method directly. However, the possible disadvantage of maximizing value is that it will be affected by extreme data, so that the decibel value of later calculation is more volatile. But this approach is a way for many recording applications to calculate volume