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This project address, name is Audiorecord recording (can pause, convert PCH to WAV), for starHttps://github.com/979451341/Audio-and-video-learning-materialsFirst, the official description.1.AndioRecord Approximate descriptionThe main function of the Andiorecord class is to enable various Java applications to manage audio resources so that they can record sound co
MediaRecord can be used for recording in Android, which is easy to operate. However, it is not professional enough to Process audio. If you want to process audio in real time or encapsulate the audio
You can use AudioRecord for recording.
Here is a piece of code.
Not much to say, directly on the code, with a specific gazeMyaudiorecord.javaImport Java.io.file;import java.io.ioexception;import android.app.activity;import android.content.ContentValues; Import Android.content.intent;import Android.media.mediaplayer;import Android.media.mediarecorder;import Android.net.uri;import Android.os.bundle;import Android.os.environment;import Android.provider.MediaStore;import Android.view.view;import Android.widget.button;import android.widget.textview;/** * This is
Create empty applicaton and add the homeviewcontroller file. Let's look at the code. The theory is too boring and will be mentioned in the code.
Homeviewcontroller. H code:# Import @ End
Homeviewcontroller. m code:# Import "homeviewcontroller. H "@ interface homeviewcontroller () @ end @ implementation homeviewcontroller @ synthesize audioplayer; @ synthesize audiorecorder; // set the location of the recorded audio file-(nsstring *) audiorecordingpath
Not much to say, directly on the code, with detailed commentsMyaudiorecord.javaImport Java.io.file;import java.io.ioexception;import android.app.activity;import android.content.ContentValues; Import Android.content.intent;import Android.media.mediaplayer;import Android.media.mediarecorder;import Android.net.uri;import Android.os.bundle;import Android.os.environment;import Android.provider.MediaStore;import Android.view.view;import Android.widget.button;import android.widget.textview;/** * This i
Steps to record audio:1. Create a Recording object2. Specify the recording device (initialization status)3. Set the bitrate of recorded audio4. Set the encoding format for recording audio5, set the location of recording audio stor
New empty Applicaton, add Homeviewcontroller file. Just look at the code, it's too boring and the theory will be mentioned in the code.HomeViewController.h code: #import @endNBSP;HOMEVIEWCONTROLLER.M code: #import "HomeViewController.h" @interface Homeviewcontroller () @end @implementation Homeviewcontroller @synthesize Audioplayer; @synthesize Audiorecorder; //Setting the location of recorded audio files-(NSString *) audiorecordingpath{ nsstri
memory is 2048*1526*4 bytes, which is equivalent to 12MB of RAM, which needs to be re-erased and redistributed each time the layer is redrawn. Software drawings are expensive, and unless absolutely necessary, you should avoid redrawing your view. The secret to improving your drawing performance is to avoid drawing//vector graphics Cashapelayer Although it is efficient but the number of simultaneous layers on the screen is approximately hundreds of-(v
This article explains how to call the recording function and the method of playing audio in a small program. let's look at several pictures first.
1. for better understanding, the audio list was not loaded at the beginning. just move the code forward.
Code:
1. index. wxml
I. Principles
In Linux, recording-reads data from the dsp device and playing-writes data to the dsp device.
The Development Board uses the sound card UDA1341 to implement audio codec and complete A/D and D/A conversion. The figure below shows the connection between the chip UDA1341 and the CPU:
To achieve full duplex, two DMA channels are required for data transmission. Taking
Research on Network Speech Communication Technology
AbstractThis article describes the use of computer sound recording and Playback Technology, as well as the method of data transmission over the network, and combined with an instance to design a network voice communication program.KeywordsNetwork Communication, sound recording, sound playback, and GSM 610 voice compressionNetwork voice c
The Microphone access class provided by Windows Phone is Microsoft. Xna. Framework. Audio. Microphone, which belongs to the XNA Framework. This class is also required to access the Windows Phone Microphone in Silverlight. Therefore, you must add a reference to Microsoft. Xna. Framework.1. Declare local variables to obtain the microphone Singleton.
// Mic SingletonPrivate Microphone microphone = Microphone. Default;// Capture the
Android multimedia audio and video recording MediaRecorderOverview:
MediaRecorder status chart:Initial: Initial state. When a MediaRecorder object is created using the new () method or the reset () method is called, The MediaRecZ prepare? Http://www.bkjia.com/kf/ware/vc/ "target =" _ blank "class =" keylink "> vcmRlcrbUz/examples/templates + SW5pdGlhbGl6ZWSjutLRs/templates + templates/ release/bOxLz + relea
To record audio steps using Mediarecorder:Create a Mediarecorder objectCall Mediarecorder's Setaudiosource () method to set the sound source, the general incoming MediaRecorder.AudioSource.MIC parameter specifies that the sound is recorded from the microphoneCall the Setoutputformat () setting of the Mediarecorder object to format the recorded audio fileCall the Mediarecorder object's Setaudioencoder (), se
Mobile phones typically offer microphone hardware, and the Android system can use that hardware to record audio.To record audio in Android apps, Android provides the Mediarecorder class and the process of recording audio using Mediarecorder is as follows:1. Create a Mediarecorder object.2. Call the Setaudiosource () method of the Mediarecorder object to set the s
Nickname: Marine fish 1001 Date: October 25, 2014-October 31, 2014
1. Task completed this week: noise suppression for audio recording. pcm+h264 package MP4, last week for audio g711a, and the parameter is not ideal for synthesis.
2. Task not completed this week: Timestamp issue
3. Next week plan: Find timestamps related literature
4. Key technical Point Descripti
to prepare are set parameters. You can also set other parameters to view the differences. Prepare means that the recording device starts to prepare to capture the data of the input device and encode the data. This means that everything is ready, just wait for the first moment. For the specific code of prepare, see:
/** * Prepares the recorder to begin capturing and encoding data. This method * must be called after setting up the desired
() Mediarecorder instance.
To start audio capture, call MediaRecorder.start() .
To stop audio capture, call MediaRecorder.stop() .
When you do with the Mediarecorder instance, call on MediaRecorder.release() it. Calling is always recommended to free the MediaRecorder.release() resource immediately. Call release is always the recommended way to release resources immediately
Example:record
Mediarecord can be used for recording in Android, which is easy to operate. However, it is not professional enough to Process audio. If you want to process audio in real time or encapsulate the audio
You can use audiorecord for recording.
Here is a piece of code.
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