前几天在嵌入式linux上用到alsa command，网上查的资料多不给力，仅仅有动手一点点查，最终能够用了，将这个用法告诉大家，以免大家少走弯路。

0.先查看系统支持哪几个alsa cmd:

ll /system/bin/asla*

经查，我的android4.4.2+linux3.10  的系统支持例如以下 alsa cmd

-rwxr-xr-x root     shell       68242 2014-10-08 05:18 alsa_amixer
-rwxr-xr-x root     shell       67639 2014-10-08 05:18 alsa_aplay
-rwxr-xr-x root     shell      130323 2014-10-08 05:18 alsa_ctl

不同的系统能够稍有不同，比方有的系统就叫aplay\amixer .....

1.怎样使用alsa_aplay:

alsa_aplay -h //看一下眼下支持哪些使用方法

-h, --help              help
    --version           print current version
-l, --list-devices      list all soundcards and digital audio devices
-L, --list-pcms         list device names
-D, --device=NAME       select PCM by name
-q, --quiet             quiet mode
-t, --file-type TYPE    file type (voc, wav, raw or au)
-c, --channels=#        channels
-f, --format=FORMAT     sample format (case insensitive)
-r, --rate=#            sample rate
-d, --duration=#        interrupt after # seconds
-M, --mmap              mmap stream
-N, --nonblock          nonblocking mode
-F, --period-time=#     distance between interrupts is # microseconds
-B, --buffer-time=#     buffer duration is # microseconds
    --period-size=#     distance between interrupts is # frames
    --buffer-size=#     buffer duration is # frames
-A, --avail-min=#       min available space for wakeup is # microseconds
-R, --start-delay=#     delay for automatic PCM start is # microseconds
                        (relative to buffer size if <= 0)
-T, --stop-delay=#      delay for automatic PCM stop is # microseconds from xrun
-v, --verbose           show PCM structure and setup (accumulative)
-V, --vumeter=TYPE      enable VU meter (TYPE: mono or stereo)
-I, --separate-channels one file for each channel
    --disable-resample  disable automatic rate resample
    --disable-channels  disable automatic channel conversions
    --disable-format    disable automatic format conversions
    --disable-softvol   disable software volume control (softvol)
    --test-position     test ring buffer position
    --test-coef=#        test coeficient for ring buffer position (default 8)
                        expression for validation is: coef * (buffer_size / 2)
    --test-nowait       do not wait for ring buffer - eats whole CPU
    --max-file-time=#   start another output file when the old file has recorded
                        for this many seconds
    --process-id-file   write the process ID here
    --use-strftime      apply the strftime facility to the output file name

会有具体的help说明，这个就不说了，能够自己试。
alsa_aplay -l //列出系统有几个声卡（card 0/1/2....）, 及每一个卡的一个设备（device 0/1/2....）

比方我的系统为：

**** List of PLAYBACK Hardware Devices ****
card 0: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
  Subdevices: 8/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
card 0: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
  Subdevices: 8/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
card 1: IntelALSASSP [IntelALSASSP], device 0: BT_DEVICE [IntelALSASSP]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: IntelALSASSP [IntelALSASSP], device 2: BUILTIN_DEVICE [IntelALSASSP]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: cloverviewaudio [cloverview_audio], device 0: 4 []
  Subdevices: 2/2
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
card 2: cloverviewaudio [cloverview_audio], device 1: Voice rt5640-aif2-1 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: cloverviewaudio [cloverview_audio], device 3: BTSCO snd-soc-dummy-dai-3 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: cloverviewaudio [cloverview_audio], device 4: VOIP rt5640-aif2-4 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: cloverviewaudio [cloverview_audio], device 5: IFX_MODEM_MIXING snd-soc-dummy-dai-5 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: cloverviewaudio [cloverview_audio], device 6: virtual-stream rt5640-aif1-6 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: cloverviewaudio [cloverview_audio], device 7: CTP Probe snd-soc-dummy-dai-7 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

因为我的codec 为alc5640,所以
从上面得知alc5640挂在card2上，所以以后我们当配置amixer 5640时就-c 2 就对了。

2. alsa_amixer的使用方法

alsa_amixer -h //一样的help,这里不列了。

用alc5640进行mixer控制的使用方法：

# alsa_amixer -c 2 controls

例如以下：

alsa_amixer -c 2 controls
numid=35,iface=MIXER,name='Headphone Switch'
numid=20,iface=MIXER,name='Mono ADC Capture Volume'
numid=122,iface=MIXER,name='Mono ADC L1 Mux'
numid=123,iface=MIXER,name='Mono ADC L2 Mux'
numid=114,iface=MIXER,name='Mono ADC MIXL ADC1 Switch'
numid=115,iface=MIXER,name='Mono ADC MIXL ADC2 Switch'
numid=112,iface=MIXER,name='Mono ADC MIXR ADC1 Switch'
numid=113,iface=MIXER,name='Mono ADC MIXR ADC2 Switch'
numid=121,iface=MIXER,name='Mono ADC R1 Mux'
numid=120,iface=MIXER,name='Mono ADC R2 Mux'
numid=93,iface=MIXER,name='Mono DAC MIXL DAC L1 Switch'
numid=94,iface=MIXER,name='Mono DAC MIXL DAC L2 Switch'
numid=95,iface=MIXER,name='Mono DAC MIXL DAC R2 Switch'
numid=92,iface=MIXER,name='Mono DAC MIXR DAC L2 Switch'
numid=90,iface=MIXER,name='Mono DAC MIXR DAC R1 Switch'
numid=91,iface=MIXER,name='Mono DAC MIXR DAC R2 Switch'
numid=11,iface=MIXER,name='Mono DAC Playback Volume'
numid=44,iface=MIXER,name='Mono MIX BST1 Switch'
numid=41,iface=MIXER,name='Mono MIX DAC L2 Switch'
numid=40,iface=MIXER,name='Mono MIX DAC R2 Switch'
numid=43,iface=MIXER,name='Mono MIX OUTVOL L Switch'
numid=42,iface=MIXER,name='Mono MIX OUTVOL R Switch'
numid=85,iface=MIXER,name='Mono dacr Mux'
numid=8,iface=MIXER,name='Mono Playback Switch'
numid=21,iface=MIXER,name='ADC Boost Gain'
numid=24,iface=MIXER,name='ADC IF1 Data Switch'
numid=26,iface=MIXER,name='ADC IF2 Data Switch'
numid=18,iface=MIXER,name='ADC Capture Switch'
numid=19,iface=MIXER,name='ADC Capture Volume'
numid=22,iface=MIXER,name='Class D SPK Ratio Control'
numid=25,iface=MIXER,name='DAC IF1 Data Switch'
numid=27,iface=MIXER,name='DAC IF2 Data Switch'
numid=103,iface=MIXER,name='DAC L2 Mux'
numid=107,iface=MIXER,name='DAC MIXL INF1 Switch'
numid=106,iface=MIXER,name='DAC MIXL Stereo ADC Switch'
numid=105,iface=MIXER,name='DAC MIXR INF1 Switch'
numid=104,iface=MIXER,name='DAC MIXR Stereo ADC Switch'
numid=102,iface=MIXER,name='DAC R2 Mux'
numid=10,iface=MIXER,name='DAC1 Playback Volume'
numid=9,iface=MIXER,name='DAC2 Playback Switch'
numid=108,iface=MIXER,name='DAI select'
numid=88,iface=MIXER,name='DIG MIXL DAC L1 Switch'
numid=89,iface=MIXER,name='DIG MIXL DAC L2 Switch'
numid=86,iface=MIXER,name='DIG MIXR DAC R1 Switch'
numid=87,iface=MIXER,name='DIG MIXR DAC R2 Switch'
numid=23,iface=MIXER,name='DMIC Switch'
numid=37,iface=MIXER,name='Ext Spk L Switch'
numid=38,iface=MIXER,name='Ext Spk R Switch'
numid=3,iface=MIXER,name='HP Playback Switch'
numid=4,iface=MIXER,name='HP Playback Volume'
numid=50,iface=MIXER,name='HPO MIX DAC1 Switch'
numid=49,iface=MIXER,name='HPO MIX DAC2 Switch'
numid=51,iface=MIXER,name='HPO MIX HPVOL Switch'
numid=36,iface=MIXER,name='Headset Mic Switch'
numid=111,iface=MIXER,name='IF2 ADC L Mux'
numid=110,iface=MIXER,name='IF2 ADC R Mux'
numid=17,iface=MIXER,name='IN Capture Volume'
numid=13,iface=MIXER,name='IN1 Boost'
numid=12,iface=MIXER,name='IN1 Mode Control'
numid=15,iface=MIXER,name='IN2 Boost'
numid=14,iface=MIXER,name='IN2 Mode Control'
numid=39,iface=MIXER,name='Int Mic Switch'
numid=45,iface=MIXER,name='LOUT MIX DAC L1 Switch'
numid=46,iface=MIXER,name='LOUT MIX DAC R1 Switch'
numid=47,iface=MIXER,name='LOUT MIX OUTVOL L Switch'
numid=48,iface=MIXER,name='LOUT MIX OUTVOL R Switch'
numid=29,iface=MIXER,name='LPE IHF mixer'
numid=30,iface=MIXER,name='LPE headset mixer'
numid=6,iface=MIXER,name='OUT Channel Switch'
numid=69,iface=MIXER,name='OUT MIXL BST1 Switch'
numid=68,iface=MIXER,name='OUT MIXL BST3 Switch'
numid=74,iface=MIXER,name='OUT MIXL DAC L1 Switch'
numid=73,iface=MIXER,name='OUT MIXL DAC L2 Switch'
numid=72,iface=MIXER,name='OUT MIXL DAC R2 Switch'
numid=70,iface=MIXER,name='OUT MIXL INL Switch'
numid=71,iface=MIXER,name='OUT MIXL REC MIXL Switch'
numid=62,iface=MIXER,name='OUT MIXR BST1 Switch'
numid=61,iface=MIXER,name='OUT MIXR BST2 Switch'
numid=60,iface=MIXER,name='OUT MIXR BST3 Switch'
numid=65,iface=MIXER,name='OUT MIXR DAC L2 Switch'
numid=67,iface=MIXER,name='OUT MIXR DAC R1 Switch'
numid=66,iface=MIXER,name='OUT MIXR DAC R2 Switch'
numid=63,iface=MIXER,name='OUT MIXR INR Switch'
numid=64,iface=MIXER,name='OUT MIXR REC MIXR Switch'
numid=5,iface=MIXER,name='OUT Playback Switch'
numid=7,iface=MIXER,name='OUT Playback Volume'
numid=138,iface=MIXER,name='RECMIXL BST1 Switch'
numid=137,iface=MIXER,name='RECMIXL BST2 Switch'
numid=136,iface=MIXER,name='RECMIXL BST3 Switch'
numid=134,iface=MIXER,name='RECMIXL HPOL Switch'
numid=135,iface=MIXER,name='RECMIXL INL Switch'
numid=139,iface=MIXER,name='RECMIXL OUT MIXL Switch'
numid=132,iface=MIXER,name='RECMIXR BST1 Switch'
numid=131,iface=MIXER,name='RECMIXR BST2 Switch'
numid=130,iface=MIXER,name='RECMIXR BST3 Switch'
numid=128,iface=MIXER,name='RECMIXR HPOR Switch'
numid=129,iface=MIXER,name='RECMIXR INR Switch'
numid=133,iface=MIXER,name='RECMIXR OUT MIXR Switch'
numid=28,iface=MIXER,name='Register Control'
numid=109,iface=MIXER,name='SDI select'
numid=82,iface=MIXER,name='SPK MIXL DAC L1 Switch'
numid=83,iface=MIXER,name='SPK MIXL DAC L2 Switch'
numid=81,iface=MIXER,name='SPK MIXL INL Switch'
numid=84,iface=MIXER,name='SPK MIXL OUT MIXL Switch'
numid=80,iface=MIXER,name='SPK MIXL REC MIXL Switch'
numid=77,iface=MIXER,name='SPK MIXR DAC R1 Switch'
numid=78,iface=MIXER,name='SPK MIXR DAC R2 Switch'
numid=76,iface=MIXER,name='SPK MIXR INR Switch'
numid=79,iface=MIXER,name='SPK MIXR OUT MIXR Switch'
numid=75,iface=MIXER,name='SPK MIXR REC MIXR Switch'
numid=59,iface=MIXER,name='SPOL MIX BST1 Switch'
numid=56,iface=MIXER,name='SPOL MIX DAC L1 Switch'
numid=55,iface=MIXER,name='SPOL MIX DAC R1 Switch'
numid=58,iface=MIXER,name='SPOL MIX SPKVOL L Switch'
numid=57,iface=MIXER,name='SPOL MIX SPKVOL R Switch'
numid=54,iface=MIXER,name='SPOR MIX BST1 Switch'
numid=52,iface=MIXER,name='SPOR MIX DAC R1 Switch'
numid=53,iface=MIXER,name='SPOR MIX SPKVOL R Switch'
numid=32,iface=MIXER,name='SSP BT Master Mode'
numid=34,iface=MIXER,name='SSP Modem Master Mode'
numid=33,iface=MIXER,name='SSP VOIP Master Mode'
numid=31,iface=MIXER,name='SST Probe Byte Control'
numid=16,iface=MIXER,name='Speaker Boost'
numid=1,iface=MIXER,name='Speaker Playback Switch'
numid=2,iface=MIXER,name='Speaker Playback Volume'
numid=125,iface=MIXER,name='Stereo ADC L1 Mux'
numid=127,iface=MIXER,name='Stereo ADC L2 Mux'
numid=118,iface=MIXER,name='Stereo ADC MIXL ADC1 Switch'
numid=119,iface=MIXER,name='Stereo ADC MIXL ADC2 Switch'
numid=116,iface=MIXER,name='Stereo ADC MIXR ADC1 Switch'
numid=117,iface=MIXER,name='Stereo ADC MIXR ADC2 Switch'
numid=124,iface=MIXER,name='Stereo ADC R1 Mux'
numid=126,iface=MIXER,name='Stereo ADC R2 Mux'
numid=101,iface=MIXER,name='Stereo DAC MIXL ANC Switch'
numid=99,iface=MIXER,name='Stereo DAC MIXL DAC L1 Switch'
numid=100,iface=MIXER,name='Stereo DAC MIXL DAC L2 Switch'
numid=98,iface=MIXER,name='Stereo DAC MIXR ANC Switch'
numid=96,iface=MIXER,name='Stereo DAC MIXR DAC R1 Switch'
numid=97,iface=MIXER,name='Stereo DAC MIXR DAC R2 Switch'

alsa_amixer -c 2 cget numid=2 // 从card2 获得主喇叭当时的音量

alsa_amixer -c 2 cset numid=2 39　// 从card2设置主喇叭的音量＝39
alsa_amixer -c 2 cset numid=2 100%　// 从card2设置主喇叭的音量＝39

转载于:https://www.cnblogs.com/mengfanrong/p/4224783.html

都能看懂的嵌入式linux/android alsa_aplay alsa_amixer命令行使用方法相关推荐

  1. 嵌入式linux mono,嵌入式linux/android alsa_aplay alsa_amixer命令行用法(示例代码)

    几天在嵌入式linux上用到alsa command,网上查的资料多不给力,只有动手一点点查,终于可以用了,将这个使用方法告诉大家,以免大家少走弯路. 0.先查看系统支持哪几个alsa cmd: ll ...

  2. 嵌入式linux/android alsa_aplay alsa_amixer命令行用法

    几天在嵌入式linux上用到alsa command,网上查的资料多不给力,只有动手一点点查,终于可以用了,将这个使用方法告诉大家,以免大家少走弯路. 0.先查看系统支持哪几个alsa cmd: ll ...

  3. 红色买绿色出 简单易操作的买卖点公式 散户小白都能看懂

    好久没来csdn了,在最初,CSDN是用来记录我做前端写的笔记,后面在工作期间,接触了产品,就转岗了,慢慢的,csdn就很少写了,但是我觉得这里可以作为我记录心得的一个地方,还是挺好的. 因为产品规划 ...

  4. 嵌入式Linux+Android学习路线图

    嵌入式Linux+Android学习路线图 2016-08-01 韦东山 百问科技 网站/论坛:www.100ask.net,www.100ask.org 淘     宝:100ask.taobao. ...

  5. 嵌入式Linux+Android学习路线图+学习进度

    嵌入式Linux+Android学习路线图 转载:http://www.100ask.net/a/howtostudy/ 重拾Linux驱动,就按照百问网的步骤一步一步做,看自己最后能坚持到哪一步!! ...

  6. 小学生都能看懂，彻底解决环境搭建难题，一步一截图，再无VMware网络难题

    小学生都能看懂,彻底解决环境搭建难题,一步一截图,再无VMware网络难题 原创 韦东山 百问科技 1周前 上周四我们预告了这周要发布环境搭建的终极解决方案,经过一周的努力,终于写好了文档,Ubunt ...

  7. 小白都能看懂的实战教程 手把手教你Python Web全栈开发(DAY 1)

    小白都能看懂的实战教程 手把手教你Python Web全栈开发 Flask(Python Web)实战系列之在线论坛系统 第一讲 博主博客文章内容导航(实时更新) 更多优质文章推荐: 收藏!最详细的P ...

  8. 每个程序员都可以「懂」一点 Linux

    点击上方"马蜂窝技术",关注订阅更多优质内容 提到 Linux,作为程序员来说一定都不陌生.但如果说到「懂」Linux,可能就没有那么多人有把握了.到底用 Linux 离懂 Lin ...

  9. 你一定可以看懂的：Linux编辑器-vim的使用

    你一定可以看懂的:Linux编辑器-vim的使用 每博一文案 正如这句话所说的,人跟人之间的感情,就像织毛衣拆开的, 永远比拆开的快,失去永远比得到的快,没有一段感情, 天生牢固,也没有一段感情从来不 ...

  10. 人人都能看懂的EM算法推导

    作者丨August@知乎(已授权) 来源丨https://zhuanlan.zhihu.com/p/36331115 编辑丨极市平台 估计有很多入门机器学习的同学在看到EM算法的时候会有种种疑惑:EM ...

最新文章

  1. Paper：关于人工智能的所有国际顶级学术会简介(IJCAI、ICLR、AAAI 、COLT、CVPR、ICCV 等)之详细攻略(持续更新，建议收藏！)
  2. ArcGIS Server常见问题集锦(转载)
  3. ９道最佳解酒方法[转]
  4. java 修饰符作用_Java关键字修饰符的作用范围
  5. Qt Creator基本快捷键
  6. 初试Ajax.Net ！
  7. 各种没有由来的问题,干!
  8. 导出mysql excel数据字典_mysql导出 Excel数据字典(全)
  9. 数独游戏技巧从入门到精通_中国茶艺技巧：500集从入门到精通教程，视频+素材+笔记...
  10. excel查找和替换
  11. git学习笔记-（10-分支例子）
  12. 2003系统如何搭建ftp服务器配置,WINDOWSSERVER2003系统架设FTP服务器配置方法.pdf
  13. 2017cad光标大小怎么调_2017版CAD画直线时怎么设置光标处有显示长度和角度的？...
  14. GIS-坐标系-EPSG(二次整理)
  15. 硬盘sata供电不启动，必须用大4pin转sata的情况
  16. 2015年8月5日------------赵鑫
  17. 传奇开服技术服务端各文件代表着什么意思
  18. 国内某厂商摄像头敏感信息泄露漏洞事件分析
  19. 11.1 项目风险管理
  20. 开启snapshot的操作失败 如何解决——两种办法

热门文章

  1. PMP干货教你一秒选对PMP考试答案！
  2. PMP考试题型是如何分布的？
  3. 制作嵌入式文件系统工具 mkfs.ext2 mkfs.ext3 mkfs.ext4
  4. mac 中 将Pdf文件转kindle格式mobi文件教程
  5. php ksc歌词,KSC字幕制作方法 KSC歌词编辑教程
  6. 微信小程序启动页完整模板
  7. 从零实现 SPI_flash（W25Q256）
  8. 快速理解卷积神经网络VGG16/VGG19，以及每个模块的作用及意义。
  9. 土豪也不会告诉你的IBM X3850 X5
  10. STM32F4 使用 JFlash 加密后无法再擦除了