{"rsdb":{"rid":"239233","subhead":"","postdate":"0","aid":"164893","fid":"105","uid":"1","topic":"1","content":"
\n

\u4e00.\u80cc\u666f:<\/p> \n

arm linux\u7684\u5185\u6838\u7248\u672c\u662f3.13.0<\/p> \n

\u4e8c.\u51c6\u5907\u5de5\u4f5c<\/p> \n

\u6dfb\u52a0alsa\u9a71\u52a8\u5230\u5185\u6838\u4e2d,\u4e5f\u5c31\u662f\u5728\u7f16\u8bd1\u5185\u6838\u7684\u65f6\u5019\u52a0\u5165\u4ee5\u4e0b\u9009\u9879:<\/p> \n

\"\"<\/p> \n

\u63a5\u4e0b\u6765\u5c31\u91cd\u65b0\u7f16\u8bd1\u5185\u6838\u5373\u53ef<\/p> \n

\u4e09.\u4ea4\u53c9\u7f16\u8bd1alsa-lib\u548calsa-utils (alsa-utils\u662f\u4e00\u7cfb\u5217\u7684\u97f3\u9891\u8bbe\u5907\u63a7\u5236\u5de5\u5177\uff0c\u800calsa-lib\u662falsa-utils\u4f9d\u8d56\u7684\u5e93\uff0c\u6240\u4ee5\u5148\u5c06alsa-lib\u7f16\u8bd1\u597d)<\/p> \n

3.1\u4ea4\u53c9\u7f16\u8bd1alsa-lib<\/p> \n

3.2\u4ea4\u53c9\u7f16\u8bd1alsa-utils<\/p> \n

\u56db.\u5c06\u4e09\u7f16\u8bd1\u597d\u7684\u5e93\u53ca\u5de5\u5177\u90fd\u62f7\u8d1d\u81f3arm\u5f00\u53d1\u677f(\u7b14\u8005\u901a\u5e38\u76f4\u63a5\u5c06\u7f16\u8bd1\u597d\u7684\u90fd\u538b\u7f29\u597d\u4e4b\u540e\u518d\u590d\u5236\u5230\u5f00\u53d1\u677f\u8fdb\u884c\u89e3\u538b,\u4ee5\u907f\u514d\u76f4\u63a5\u590d\u5236\u9020\u6210\u8f6f\u94fe\u63a5\u65e0\u6cd5\u590d\u5236\u7684\u60c5\u51b5)<\/p> \n

\u4e94.\u4f7f\u7528alsa-utils\u4e2d\u7684\u5de5\u5177\u8fdb\u884c\u5404\u7c7b\u64cd\u4f5c<\/p> \n

5.1\u5f55\u97f3:<\/p> \n

arecord -D "plughw:0,0" demo.wmv<\/p> \n

5.2\u64ad\u653e:<\/p> \n

aplay -D "plughw:0,0" demo.wmv<\/p> \n

 5.3\u83b7\u53d6\u63a7\u5236\u4fe1\u606f:<\/p> \n

amixer controls<\/p> \n

\u8f93\u51fa\u4fe1\u606f\u5982\u4e0b:<\/p> \n

numid=3,iface=MIXER,name='Master Mode Switch'
numid=29,iface=MIXER,name='Master Mux'
numid=4,iface=MIXER,name='Master Quality Switch'
numid=2,iface=MIXER,name='Master Switch'
numid=1,iface=MIXER,name='Master Volume'
numid=7,iface=MIXER,name='PCM Mode Switch'
numid=6,iface=MIXER,name='PCM Switch'
numid=5,iface=MIXER,name='PCM Volume'
numid=9,iface=MIXER,name='Mic Switch'
numid=8,iface=MIXER,name='Mic Volume'<\/p> \n

5.4 \u83b7\u53d6\u5f55\u97f3\u65f6\u7684\u97f3\u91cf\u5927\u5c0f<\/p> \n

\u4ece5.3\u53ef\u4ee5\u83b7\u53d6\u5230\u201dnumid=8,iface=MIXER,name='Mic Volume'\u201c\u8fd9\u6761\u4fe1\u606f\uff0c\u4eceMic Volume\u53ef\u4ee5\u5f97\u77e5\u662fMic\u7684\u97f3\u91cf<\/p> \n

amixer cget numid=8,iface=MIXER,name='Mic Volume'
<\/em><\/p> \n

5.4\u8bbe\u7f6e\u5f55\u97f3\u65f6\u7684\u97f3\u91cf\u5927\u5c0f <\/p> \n

amixer cset numid=8,iface=MIXER,name='Mic Volume' 255 <\/em><\/p> \n

\u516d:\u6ce8\u610f\u4e8b\u9879:<\/p> \n

\u5982\u679c\u5c06\u7f16\u8bd1\u597d\u7684alsa-utils\u4e2d\u7684\u5de5\u5177\u590d\u5236\u5230fat32\u683c\u5f0f\u7684\u5b58\u50a8\u8bbe\u5907\u7684\u65f6\u5019\uff0c\u6ce8\u610ffat32\u662f\u4e0d\u652f\u6301\u8f6f\u94fe\u63a5\u7684,\u6b64\u65f6\u9700\u8981\u76f4\u63a5\u590d\u5236\u4e00\u4e2aaplay\u5e76\u5c06\u540d\u79f0\u6539\u4e3aarecord:<\/p> \n

cp aplay arecord<\/p> \n

 <\/p>\n<\/div>","orderid":"0","title":"arm linux\u5229\u7528alsa\u9a71\u52a8\u5e76\u4f7f\u7528usb\u97f3\u9891\u8bbe\u5907","smalltitle":"","mid":"0","fname":"\u5176\u5b83","special_id":"0","bak_id":"0","info":"0","hits":"6915","pages":"1","comments":"0","posttime":"2017-10-16 18:19:08","list":"1508149148","username":"admin","author":"","copyfrom":"","copyfromurl":"","titlecolor":"","fonttype":"0","titleicon":"0","picurl":"http:\/\/images2017.cnblogs.com\/blog\/514194\/201710\/514194-20171013104150559-2134565125.png","ispic":"1","yz":"1","yzer":"","yztime":"0","levels":"0","levelstime":"0","keywords":"arm<\/A> linux<\/A> \u5229\u7528<\/A> alsa<\/A> \u9a71\u52a8<\/A> \u4f7f\u7528<\/A> usb<\/A> \u97f3\u9891<\/A> \u8bbe\u5907<\/A>","jumpurl":"","iframeurl":"","style":"","template":"a:3:{s:4:\"head\";s:0:\"\";s:4:\"foot\";s:0:\"\";s:8:\"bencandy\";s:0:\"\";}","target":"0","ip":"113.108.110.181","lastfid":"0","money":"0","buyuser":"","passwd":"","allowdown":"","allowview":"","editer":"","edittime":"0","begintime":"0","endtime":"0","description":"arm linux\u5229\u7528alsa\u9a71\u52a8\u5e76\u4f7f\u7528usb\u97f3\u9891\u8bbe\u5907","lastview":"1713562561","digg_num":"1049","digg_time":"0","forbidcomment":"0","ifvote":"0","heart":"","htmlname":"","city_id":"0"},"page":"1"}