from: tuxradar.com/content/how-it-works-linux-audio-explained How it works: Linux audio explained Posted at 11:30am on Thursday April 8th 2010 There's a problem with the state of Linux audio, and it's not that it doesn't always work. The issue is tha…

linux驱动 alsa模型: Linux ALSA声卡驱动之一:ALSA架构简介 Linux ALSA声卡驱动之二:声卡的创建 Linux ALSA声卡驱动之三:PCM设备的创建 Linux ALSA声卡驱动之四:Control设备的创建 Linux ALSA声卡驱动之五:移动设备中的ALSA(ASoC) Linux ALSA声卡驱动之六:ASoC架构中的Machine  Linux ALSA声卡驱动之七:ASoC架构中的Codec   Linux ALSA声卡驱动之八:ASoC架构中的Pla…

1. 背景 在<Jasper语音助理介绍>中, 介绍了Linux音频系统, 本文主要介绍了Linux下音频编程相关内容. 音频编程主要包括播放(Playback)和录制(Record), 大概过程简单总结如下:播放:  将音频文件进行解码(Decode)生成PCM数据, 并将其送入音频设备中播出.录制:  将声音进行采集, 编码(Encode)后按照特定文件格式保存至音频文件. 2. 基础知识 2.1 声音和声卡 声音是由物体振动产生的声波, 是通过介质(空气或固体.液体)传播并能被人或动物听…

http://www.tldp.org/HOWTO/archived/Ext2fs-Undeletion-Dir-Struct/index.html http://www.giis.co.in/debugfs.html http://www.kossboss.com/linux---debugfs-explained-ext2-ext3-ext4-filesystem-recovery http://www.cyberciti.biz/tips/linux-ext3-ext4-deleted-f…

linux驱动开发总结(一) 基础性总结 1, linux驱动一般分为3大类: * 字符设备 * 块设备 * 网络设备 2, 开发环境构建: * 交叉工具链构建 * NFS和tftp服务器安装 3, 驱动开发中设计到的硬件: * 数字电路知识 * ARM硬件知识 * 熟练使用万用表和示波器 * 看懂芯片手册和原理图 4, linux内核源代码目录结构: * arch/: arch子目录包括了所有和体系结构相关的核心代码.它的每一个子目录都代表一种支持的体系结构,例如i386就是关于intel c…

写这篇文章的目的在于帮助那些既要使用Visual Studio编写程序又要开发和调试嵌入式Linux 程序的苦命程序员们! 第一步, 安装 WinGDB ,下载位置  http://www.wingdb.com/   ,连接是http://www.wingdb.com/WinGDB-latest_trial.msi 30天试用版在30天后 卸载掉, 删除所有gdb相关的注册表, 然后重新安装, 就又可以使用30天, 安装过程如下图示: 1.选择同意许可协议 2.如果你机器上装了足够多的VS版本,…

A Tutorial on Using the ALSA Audio API This document attempts to provide an introduction to the ALSA Audio API. It is not a complete reference manual for the API, and it does not cover many specific issues that more complex software will need to addr…

Dive into BPF: a list of reading material Sep 1, 2016 • Quentin Monnet◀Table of contents What is BPF? Dive into the bytecode Resources Generic presentations About BPF About XDP About other components related or based on eBPF Documentation About BPF A…

ALSA stands for the Advanced Linux Sound Architecture. It consists of a set of kernel drivers, an application programming interface (API) library and utility programs for supporting sound under Linux. In this article, I present a brief overview of th…

3.  Network Setup Connecting Freight to a Monitor The easiest way to configure the wireless networking is to connect a monitor, keyboard, and mouse and use the Network Manager interface. Referencing the picture of Access Board in the previous post, w…