Android中文API(115)——AudioFormat

 

前言

  本章内容是android.media.AudioFormat,版本为Android 3.0 r1,翻译来自"文炜",欢迎大家访问他的博客:http://www.cnblogs.com/iezhyg/,再次感谢"文炜" !期待你加入Android 中文翻译组,联系我over140@gmail.com。

 

声明

  欢迎转载,但请保留文章原始出处:)

    博客园:http://www.cnblogs.com/

    Android中文翻译组:http://goo.gl/6vJQl

 

正文

  一、结构

public class AudioFormat extends Object

        

java.lang.Object

android.media.AudioFormat

 

  二、概述

    AndioFormat类用于访问一些音频格式和通道配置常量。这些常量应用在AudioTrackAudioRecord类中。
 

  三、常量

  public static final int CHANNEL_CONFIGURATION_DEFAULT

  已弃用。

   CHANNEL_OUT_DEFAULT or CHANNEL_IN_DEFAULT 代替。

  常量值:1 (0x00000001)

 

  public static final int CHANNEL_CONFIGURATION_INVALID

  已弃用。

   CHANNEL_INVALID 代替。

  常量值: 0 (0x00000000)

 

  public static final int CHANNEL_CONFIGURATION_MONO

  已弃用。

   CHANNEL_OUT_MONO or CHANNEL_IN_MONO 代替。

  常量值: 2 (0x00000002)

 

  public static final int CHANNEL_CONFIGURATION_STEREO

  已弃用。

   CHANNEL_OUT_STEREO or CHANNEL_IN_STEREO 代替。

  常量值: 3 (0x00000003)

 

  public static final int CHANNEL_INVALID

  无效的音频通道掩码

  常量值: 0 (0x00000000)

 

  public static final int CHANNEL_IN_BACK

  常量值: 32 (0x00000020)

 

  public static final int CHANNEL_IN_BACK_PROCESSED

  常量值: 512 (0x00000200)

 

  public static final int CHANNEL_IN_DEFAULT

  常量值: 1 (0x00000001)

 

  public static final int CHANNEL_IN_FRONT

  常量值: 16 (0x00000010)

 

  public static final int CHANNEL_IN_FRONT_PROCESSED

  常量值: 256 (0x00000100)

 

  public static final int CHANNEL_IN_LEFT

  常量值: 4 (0x00000004)

 

  public static final int CHANNEL_IN_LEFT_PROCESSED

  常量值: 64 (0x00000040)

 

  public static final int CHANNEL_IN_MONO

  常量值: 16 (0x00000010)

 

  public static final int CHANNEL_IN_PRESSURE

  常量值: 1024 (0x00000400)

 

  public static final int CHANNEL_IN_RIGHT

  常量值: 8 (0x00000008)

 

  public static final int CHANNEL_IN_RIGHT_PROCESSED

  常量值: 128 (0x00000080)

 

  public static final int CHANNEL_IN_STEREO

  常量值: 12 (0x0000000c)

 

  public static final int CHANNEL_IN_VOICE_DNLINK

  常量值: 32768 (0x00008000)

 

  public static final int CHANNEL_IN_VOICE_UPLINK

  常量值: 16384 (0x00004000)

 

  public static final int CHANNEL_IN_X_AXIS

  常量值: 2048 (0x00000800)

 

  public static final int CHANNEL_IN_Y_AXIS

  常量值: 4096 (0x00001000)

 

  public static final int CHANNEL_IN_Z_AXIS

  常量值: 8192 (0x00002000)

 

  public static final int CHANNEL_OUT_5POINT1

  常量值: 252 (0x000000fc)

 

  public static final int CHANNEL_OUT_7POINT1

  常量值: 1020 (0x000003fc)

 

  public static final int CHANNEL_OUT_BACK_CENTER

  常量值: 1024 (0x00000400)

 

  public static final int CHANNEL_OUT_BACK_LEFT

  常量值: 64 (0x00000040)

 

  public static final int CHANNEL_OUT_BACK_RIGHT

  常量值: 128 (0x00000080)

 

  public static final int CHANNEL_OUT_DEFAULT

  默认的音频通道掩码。

  常量值: 1 (0x00000001)

 

  public static final int CHANNEL_OUT_FRONT_CENTER

  常量值: 16 (0x00000010)

 

  public static final int CHANNEL_OUT_FRONT_LEFT

  常量值: 4 (0x00000004)

 

  public static final int CHANNEL_OUT_FRONT_LEFT_OF_CENTER

  常量值: 256 (0x00000100)

 

  public static final int CHANNEL_OUT_FRONT_RIGHT

  常量值: 8 (0x00000008)

 

  public static final int CHANNEL_OUT_FRONT_RIGHT_OF_CENTER

  常量值: 512 (0x00000200)

 

  public static final int CHANNEL_OUT_LOW_FREQUENCY

  常量值: 32 (0x00000020)

 

  public static final int CHANNEL_OUT_MONO

  常量值: 4 (0x00000004)

 

  public static final int CHANNEL_OUT_QUAD

  常量值: 204 (0x000000cc)

 

  public static final int CHANNEL_OUT_STEREO

  常量值: 12 (0x0000000c)

 

  public static final int CHANNEL_OUT_SURROUND

  常量值: 1052 (0x0000041c)

 

  public static final int ENCODING_DEFAULT

  默认的音频数据格式

  常量值: 1 (0x00000001)

 

  public static final int ENCODING_INVALID

  无效的音频数据格式

  常量值: 0 (0x00000000)

 

  public static final int ENCODING_PCM_16BIT

  音频数据格式:脉冲编码调制(PCM)每个样品16位。设备保证提供支持。(参见:这里)

  常量值: 2 (0x00000002)

 

  public static final int ENCODING_PCM_8BIT

  音频数据格式:脉冲编码调制(PCM)每个样品8位。设备不保证提供支持。

  常量值: 3 (0x00000003)

 

  四、补充

    文章精选

                   Android 实时获取麦克风输入音量的代码

 

posted @ 2011-04-13 10:30  农民伯伯  阅读(11102)  评论(5编辑  收藏  举报