android sound analyzer

In Android development we often use MediaPlayer to play audio files, but MediaPlayer there are some shortcomings, such as: high resource consumption, long delay time, does not support multiple audio simultaneous playback and so on. These shortcomings have determined that the use of MediaPlayer in certain situations will not be ideal, for example in game development where time accuracy is a relatively high requirement.This article address: http://www.c

The directory file is the upper card module that handles the ISA sound card.SOUND/ARM,SOUND/PPC, and Sound/sparc here are some of the top-level card modules associated with chip architectures.Sound/usb This directory contains some usb-audio drivers.The Sound/pcmcia PCCard drive will be put here. The CardBus driver wil

Android Play sound, one is Soundpool, one is MediaPlayerSoundpool is suitable for playback of sound effects that reflect high speed requirements, such as in-game explosion soundMediaplay for longer sound effects, such as in-game background musicLet's do an example, one is Chang.ogg, the other is duan.wav.These two

This example describes the Android implementation that directly plays the sound captured by the microphone. Share to everyone for your reference. Specifically as follows: This is a direct playback microphone captured by the voice thread class: Class Recordthread extends thread{static final int frequency = 44100; static final int channelconfiguration = Audioformat.channel_configuration_mono; static

Chapter 2 music and sound effects The advertisement says "there is no sound, no sound, no matter how good it is". Let's add the sound effect to the program. In general, the game sounds are divided into two parts: music and sound. The intuitive difference is that the playing

Today, I saw an application pop-up toast, and it seems pretty good to have a sound. I said you don't have to fight, so come and say toast. No,CodeOffer: Package Weibo. lixiaodaoaaa. view; import Weibo. lixiaodaoaaa. UI. r; import android. content. context; import android. media. mediaplayer; import android. util.

In Android, there are two ways to play sound, one through MediaPlayer and the other through Soundpool. The former is mainly used for playing long-time music, while the latter is used to play a small segment of the sound effects, such as the key tone, the advantage is that the resource occupies a small, while being able to load multiple

There are unwritten rules in the industry that phone companies must have a prompt when they click the photo and video keys for camera. Therefore, google also put the function of playing the photo sound in the cameraService to prevent developers from developing a non-audible camera. Therefore, as long as the camera function is called, it will surely sound, this is written to the framework. This rule is a bi

There are unwritten rules in the industry that phone companies must have a prompt when they click the photo and video keys for camera. Therefore, google also put the function of playing the photo sound in the cameraService to prevent developers from developing a non-audible camera. Therefore, as long as the camera function is called, it will surely sound, this is written to the framework.This rule is a bit

Android sound SoundPool: soundpool 1 not retry SoundPool is used in development today. When soundpool 1 not retry cannot play the sound, MediaPlay can After some research, we found that: Unable to play the sound because of the soundpool 1 not retry error code Mgr = (AudioManager) MainActivity. this. getSystemService

In the Android system, there are two ways to play sound, one is through MediaPlayer, and the other is through SoundPool. The former is mainly used to play music for a long period of time, while the latter is used to play sound effects for a short period of time, such as the key tone. Its advantage is that the resource usage is small and multiple

java_li_zhiwei_mp3recorder_simplelame_close (jnienv *env, Jclass cls) {lame_close (GLF); GLF = NULL ;} Li_zhiwei_mp3recorder_simplelame.h (this file is actually generated in the Javah li.zhiwei.mp3recorder.SimpleLame command) /* Don't EDIT this file-it are machine generated */#include/* Header for Class Li_zhiwei_mp3recorder_simplelame */#ifnd EF _included_li_zhiwei_mp3recorder_simplelame#define _included_li_zhiwei_mp3recorder_simplelame#ifdef __ Cplusplusextern "C" {#endif/* * class:li_zhiwei

Description Implementation features: (1) The right part of the screen slide, the sound becomes big, down, the sound becomes small screen left half of the slide, brightness, decline, brightness becomes small (2) If the brightness >1 or less than 0.2, the mobile phone vibration Private float starty;//Record the y-coordinate of the finger pressed private float startx;//record the y-coordinate when the

(1) Project IntroductionAudiomanager in the Android API, it provides a way to adjust the phone volume.Audioma.adjustvolume (audiomanager.adjust_lower, 0);Audioma.adjustvolume (audiomanager.adjust_raise, 0);can also adjust the phone's sound mode to vibrate or muteAudioma.setringermode (Audiomanager.ringer_mode_normal);Audioma.setringermode (audiomanager.ringer_mode_silent);Audioma.setringermode (audiomanager

= (animationdrawable) media_imageview.getdrawable ();if(Animation! =NULL animation.isrunning ()) {animation.stop (); } media_imageview.setimageresource (r.drawable.lcs_voice_receive); }Catch(Exception e) {e.tostring (); }return false; }Else if(MediaPlayer! =NULL!mediaplayer.isplaying ()) {return true; } mediaplayer=NULL;return false; }Private Boolean Settfvoice(String Path) {BooleanMm=setvoice_stop ();if(mm) {return true; }Else{if(Media_path.equals (path)) {return false; }

Android sound focus ---- adjust the volume of Music from Music back to Luncher Sound types are defined in the AudioSystem. java file. /* The default audio stream */public static final int STREAM_DEFAULT = -1;/* The audio stream for phone calls */public static final int STREAM_VOICE_CALL = 0;/* The audio stream for system sounds */public static final int STREAM_S

" Android:textcolor= "#ffffffff"/>Icon1″android:layout_width="Wrap_content" Android:layout_height="Wrap_content" Android:layout_marginright= "10dip"/>Use default values where applicable describes the method of using default sounds, vibrations, or both:int default = notification.default_sound; // Notification.default_sound // notification.default_vibrate // Notification.default_all = defaults;Note: The same notification id:r.layout.status_bar_notifications is used in the example, so each call to

of mediarecorder, and call mediarecorder. getmaxamplder () through a thread (); The obtained is the maximum instantaneous amplitude, which is expressed by multiplying the logarithm by 10. Finally, it should be noted that the hardware customized by Android mobile phone manufacturers is different, so the value obtained by MIC can only be "characterized", and cannot be taken as the real basis. Although they are smart phones, they are still mobile phones

CodeMediametadataretriever Metaretriever =NewMediametadataretriever (); Metaretriever.setdatasource (FilePath); String out= ""; //Get MP3 Info//convert duration to Minute:secondsString Duration =Metaretriever.extractmetadata (mediametadataretriever.metadata_key_duration); LOG.V ("Time", duration);LongDur =Long.parselong (duration); String seconds= string.valueof ((dur% 60000)/1000); LOG.V ("Seconds", seconds); String minutes= String.valueof (dur/60000); out= minutes + ":" +seconds;if(seconds.len

; Normally in the audio and video interface to adjust the volume of the stream is Stream_music, back to luncher adjust is stream_voice_call, but this switch a little delay streamoverride.sdelayms, resulting in the exit tone, After the video interface is adjusted immediately, the change is still the size of the Stream_music:You can modify the/frameworks/base/media/java/android/media/audioservice.java file /** * For code clarity for Getactivestreamtype