Sound Card Chip】的更多相关文章

  DELL sigmatel stac   Hewlett-packard conexant High Definition Audio chip   lenovo(IBM) Analo Devices(sound MAX) 来自为知笔记(Wiz)…
声卡 (Sound Card)是实现声音的模拟/数字信号相互转换.信号处理的一种硬件. 声卡的基本功能是把来自话筒.磁带.光盘的原始声音信号加以转换(模数转换或者数模转换),输出到耳机.扬声器.扩音机.录音机等声响设备,或通过音乐设备数字接口(MIDI)使声音设备发出声音.   重要概念 1. 在先不考虑耳机/话筒中自带独立声卡的情况下,无论是电脑.手机,3.5mm耳机接口输出的电信号其实都是模拟信号.我们知道,音频文件本身使以数字信号的方式存储在电脑/手机中的,因此,播放声音时,播放出的声音电…
Rate: Phone:8 k hz   radio:22050 hz Digital Video camcorder; miniDV; DAT LP mode:32 k hz Audio CD MPEG-1(VCD SVCD MP3) :4.1k hz miniDV Digital TV DVD DAT Movie specialty Audio:48 k hz   Modem ★ Speed ★ The most speed ★ Standard(V.92) ★ Data compress…
Install application pavucontrol Run pavucontrol You will see the configuration about sound card and mic card. If can not solve it, Kmix shoud be used and combine it with pavucontrol…
说实话越计卷作者用了16页(我还是删过的),来讲怎么控制声卡,其实真正归纳起来就那么几点. ★PART1:直接存储访问 1. 总线控制设备(bus master) 在硬件技术不发达的早期,处理器是最重要的总线主控制设备,它有权决定谁参与总线数据传输.考虑代码片断:mov [0x2000],dx,在执行这条指令时,处理器不但发出地址信号,也发出控制信号,控制信号用来表明该地址是发给内存的,还是发给外部设备的.所有设备都有译码电路,这些译码电路的输入就是地址和控制信号.以上指令执行的时候,内存的译码…
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…
QUICK START GUIDE This page is a guide aimed at helping anyone set up a cheap radio scanner based on the RTL-SDR software defined radio as fast as possible on a Windows system. If you have any trouble during the installation, please see the troublesh…
Sound card based RFID sniffer/emulator (Too tired after recon.cx to do draw the schematics better than that :) Stay tuned for the next version including Tag emulation.) baudline FFT signal analyzer for sniffing LF RFID tags using our sound card based…
kernel version:2.6.33.7 /linux-2.6.33.7 OS:CentOS 6.4 cross-compilation chain:arm-linux-4.3.2 /usr/local/arm/4.3.2/bin 第一步:修改配置 (1)选择合适的内核代码,作为硬件参考目标平台 arch/arm/mach-s3c2440 内核版本支持s3c2440,所以不需要作修改. (2)修改顶层Makefile 设置体系架构:line193:ARCH?=$(SUBARCH)改为ARC…
alsamixer 输入上面的命令 回车即可看到图形界面,界面如下 ┌──────────────────────────── AlsaMixer v1.0.27.1 ─────────────────────────────┐│ Card: HDA Intel PCH F1: Help ││ Chip: Intel CougarPoint HDMI F2: System information ││ View: F3:[Playback] F4: Capture F5: All F6: Sel…