Android pcm-阿里云

android 采集PCM音频数据并播放(支持USB摄像头MIC)

平台RK3288 + Android 7.1开发在开始之前需要先了解下当前的音频设备情况:查看当前支持的声卡设备(找到card[0, N])rk3288:/proc/asound # ll total 0 lrwxrwxrwx 1 root root 5 2020-04-15 1...

安卓并行录音：PCM编码为AMR格式

需求项目中需要进行并行录音，即：录音PCM数据，通过Socket发送到客户端本地保存一份amr格式的音频文件可行的方法安卓中有两种方式可以录制音频：AudioRecorder 更灵活，如果需要特定格式的音频需要自己来做工作MediaRecorder 封装性更好，可以直接录音特定格式的音频，但是拿不到...

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嵌入式实践教程--Android音视频开发(二)-OpenSLES播放PCM数据

一、OpenSL ES开发流程和重要接口通过分析android-ndk中native-audio的代码，发现了用OpenSL ES来开发应用也是有套路(规律)可寻的：1.1、OpenSL ES的开发流程主要有如下6个步骤： 1、创建接口对象 2、设置混音器 3、创建播放器（录...

安卓音频开发（三）pcm转wav

pcm是原始的无损音频数据，但是在安卓手机上，播放起来并不是很方便，这里就演示如何把pcm转为wav。只需一个工具类即可实现，原理其实很简单，就在pcm文件的文件头，加上wav的文件头属性即可。为什么这么简单还要写，因为网上所找到的答案实在是乱七八糟，什么都有，所以特此记录，直接上代码：packag...

安卓音频开发（一）AudioRecorder生成pcm

关于安卓录音的实现，原生安卓给我们提供了两个实现方法，一个是MediaRecorder，另外一个则是AudioRecorder，两个区别可以理解为MediaRecorder更加便捷，实现起来更加方便，api更加高级，但生成的数据是已经处理好的。而AudioRecorder，实现起来比MediaRec...

Android录制和播放PCM数据

PCM是android系统中的原生音频数据，那么我们如何录制和播放这个格式的byte[]数据呢？录制录制很简单，使用AudioRecord，注意read前一定要先startRecordingvar record = AudioRecord(MediaRecorder.AudioSource.VOIC...

【Android RTMP】安卓直播推流总结 ( 直播服务器搭建 | NV21 图像采集 | H.264 视频编码 | PCM 音频采集 | AAC 音频编码 | RTMP 包封装推流 )

文章目录一、安卓直播推流专栏博客总结二、相关资源介绍三、 GitHub 源码地址四、整体 Android 直播推流数据到服务器并观看直播演示过程Android 直播推流流程 : 手机采集视频 / 音频数据 , 视频数据使用 H.264 编码 , 音频数据使用 AAC 编码 , 最后将音视频数据...

【Android RTMP】音频数据采集编码 ( FAAC 头文件与静态库拷贝到 AS | CMakeList.txt 配置 FAAC | AudioRecord 音频采样 PCM 格式 )（一）

Android RTMP 直播推流技术专栏 :0 . 资源和源码地址 :资源下载地址 : 资源下载地址 , 服务器搭建 , x264 , faac , RTMPDump , 源码及交叉编译库 , 本专栏 Android 直播推流源码 ;GitHub 源码地址 : han1202012 / RTMP_...

Android音频处理——通过AudioRecord去保存PCM文件进行录制，播放，停止，删除功能

Android音频处理——通过AudioRecord去保存PCM文件进行录制，播放，停止，删除功能音频这方面很博大精深，我这里肯定讲不了什么高级的东西，最多也只是一些基础类知识，首先，我们要介绍一下Android他提供的录音类,实际上他有两个，一个是MediaRecorder，还有一个就是我们今天...

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更新时间 2023-05-26 18:04:49

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