{"id":32548,"date":"2023-10-18T02:09:35","date_gmt":"2023-04-22T23:33:58","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8lambda%e5%87%bd%e6%95%b0%e5%92%8cgoogle-cloud-speech-to-text%ef%bc%8c%e5%af%b9%e5%ad%98%e5%82%a8%e5%9c%a8s3%e4%b8%ad%e7%9a%84wav%e6%96%87%e4%bb%b6%e8%bf%9b%e8%a1%8c%e6%96%87%e5%ad%97\/"},"modified":"2024-05-04T04:48:15","modified_gmt":"2024-05-03T20:48:15","slug":"%e4%bd%bf%e7%94%a8lambda%e5%87%bd%e6%95%b0%e5%92%8cgoogle-cloud-speech-to-text%ef%bc%8c%e5%af%b9%e5%ad%98%e5%82%a8%e5%9c%a8s3%e4%b8%ad%e7%9a%84wav%e6%96%87%e4%bb%b6%e8%bf%9b%e8%a1%8c%e6%96%87%e5%ad%97","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8lambda%e5%87%bd%e6%95%b0%e5%92%8cgoogle-cloud-speech-to-text%ef%bc%8c%e5%af%b9%e5%ad%98%e5%82%a8%e5%9c%a8s3%e4%b8%ad%e7%9a%84wav%e6%96%87%e4%bb%b6%e8%bf%9b%e8%a1%8c%e6%96%87%e5%ad%97\/","title":{"rendered":"\u4f7f\u7528Lambda\u51fd\u6570\u548cGoogle Cloud Speech-to-Text\uff0c\u5bf9\u5b58\u50a8\u5728S3\u4e2d\u7684wav\u6587\u4ef6\u8fdb\u884c\u6587\u5b57\u8f6c\u5f55"},"content":{"rendered":"<h1>\u4f7f\u7528Lambda\u51fd\u6570\u5c06\u5b58\u50a8\u5728S3\u4e2d\u7684wav\u6587\u4ef6\u8f6c\u6362\u4e3a\u6587\u672c\u7a3f\u4ef6\uff0c\u501f\u52a9Google Cloud Speech-to-Text\u3002<\/h1>\n<h2>\u9996\u5148<\/h2>\n<p>\u6211\u5c06\u6839\u636e\u4ee5\u4e0b\u94fe\u63a5\u63d0\u4f9b\u7684\u6587\u7ae0\uff0c\u603b\u7ed3\u4e00\u4e0b\u4f7f\u7528Lambda\u5c06\u5b58\u50a8\u5728S3\u4e0a\u7684wav\u6587\u4ef6\u8f6c\u5f55\u6210\u6587\u672c\u7684\u8fc7\u7a0b\u4e2d\u4f7f\u7528\u7684Google Cloud Speech-to-Text\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u4f7f\u7528S3 + ElasticTranscoder + Lambda + Google Cloud Speech-to-Text API\u7684\u7ec4\u5408\uff0c\u53ef\u4ee5\u81ea\u52a8\u5c06\u89c6\u9891\u97f3\u9891\u8f6c\u6362\u4e3a\u6587\u672c\u3002<\/p>\n<p>\u56e0\u4e3a\u4e0a\u9762\u7684\u6587\u7ae0\u5b8c\u5168\u662f\u6211\u7684\u6587\u7ae0\u7684\u5347\u7ea7\u7248\u672c\uff0c\u6240\u4ee5\u53ef\u80fd\u6ca1\u5fc5\u8981\u9605\u8bfb\u6211\u7684\u6587\u7ae0\u4e86\u5427\u3002<\/p>\n<h2>\u521b\u5efaS3<\/h2>\n<p>1-1. \u4f7f\u7528\u4e00\u4e2a\u968f\u610f\u7684\u5b58\u50a8\u6876\u540d\u79f0\u548c\u533a\u57df\uff08\u6211\u9009\u62e9\u4e1c\u4eac\uff09\u7136\u540e\u7ee7\u7eed\u3002<br \/>\n1-2. \u4e0d\u8fdb\u884c\u4efb\u4f55\u9009\u9879\u8bbe\u7f6e\u3002<br \/>\n1-3. \u4e0d\u8fdb\u884c\u4efb\u4f55\u8bbf\u95ee\u6743\u9650\u8bbe\u7f6e\uff08\u5c06\u6240\u6709\u516c\u5171\u8bbf\u95ee\u90fd\u963b\u6b62\uff09\u3002<br \/>\n1-4. \u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n<h2>2. \u5728\u672c\u5730\u5b89\u88c5Google Cloud\u8bed\u97f3\u8f6c\u6587\u672cAPI<\/h2>\n<p>\u4e3a\u4e86\u4f7f\u7528Google Cloud Speech-to-Text API\uff0c\u4f7f\u7528npm\u5728\u672c\u5730\u8fdb\u884c\u5b89\u88c5\u3002<br \/>\n\u4e3a\u4e86\u5c06\u5176\u4f5c\u4e3alambda\u7684\u56fe\u5c42(layer)\u6dfb\u52a0\uff0c\u5c06\u76ee\u5f55\u547d\u540d\u4e3anodejs\u3002<\/p>\n<p>\u521b\u5efa\u4e00\u4e2a\u540d\u4e3anodejs\u7684\u6587\u4ef6\u5939<br \/>\n\u8fdb\u5165nodejs\u6587\u4ef6\u5939<br \/>\n\u8fd0\u884cnpm init\u547d\u4ee4<br \/>\n\u8fd0\u884cnpm install @google-cloud\/speech\u547d\u4ee4<\/p>\n<p>\u5c06\u5305\u542bnode_modules\u7684nodejs\u6587\u4ef6\u5939\u538b\u7f29\u6210zip\u6587\u4ef6\uff08nodejs.zip\uff09\u3002<\/p>\n<h2>\u521b\u5efaLambda\u5c42\u3002<\/h2>\n<p>\u5c06\u4e4b\u524d\u521b\u5efa\u7684zip\u6587\u4ef6\u4f5c\u4e3a\u5c42\u6dfb\u52a0\u5230lambda\u3002<br \/>\n3-1. \u4eceLambda\u7684\u5c42\u9875\u9762\u8f6c\u5230\u521b\u5efa\u5c42\u9875\u9762\u3002<br \/>\n3-2. \u8f93\u5165\u9002\u5f53\u7684\u540d\u79f0\u548c\u63cf\u8ff0\u3002<br \/>\n3-3. \u4e0a\u4f20zip\u6587\u4ef6\u3002<br \/>\n3-4. \u5728\u8fd0\u884c\u73af\u5883\u4e2d\u9009\u62e9\u60a8\u7684Node.js\u7248\u672c\uff08\u6211\u9009\u62e9\u7684\u662f10.x\uff09\u3002<br \/>\n4-5. \u521b\u5efa\u3002<\/p>\n<h2>\u83b7\u53d6Google Cloud Speech-to-Text\u7684\u670d\u52a1\u5e10\u6237\u3002<\/h2>\n<p>\u4e3a\u4e86\u5c06\u5176\u914d\u7f6e\u5728lambda\u51fd\u6570\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528JSON\u683c\u5f0f\u6765\u83b7\u53d6\u670d\u52a1\u8d26\u53f7\u5bc6\u94a5\u3002<br \/>\n4-1. \u8fdb\u5165GCP\u7684API\u548c\u670d\u52a1\u5185\u7684Cloud Speech-to-Text\u3002<br \/>\n4-2. \u542f\u7528API\u3002<br \/>\n4-3. \u5728\u8ba4\u8bc1\u4fe1\u606f\u4e2d\u521b\u5efa\u201c+\u521b\u5efa\u8ba4\u8bc1\u4fe1\u606f\u201d\uff0c\u9009\u62e9\u670d\u52a1\u8d26\u53f7\u5e76\u521b\u5efa\u670d\u52a1\u8d26\u53f7\u3002<br \/>\n4-4. \u521b\u5efa\u5b8c\u540e\uff0c\u6dfb\u52a0\u5bc6\u94a5\u5e76\u83b7\u53d6JSON\u683c\u5f0f\u7684\u79d8\u94a5\u3002<\/p>\n<h2>5. \u521b\u5efalambda\u51fd\u6570<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d128037434c4406bf6687\/16-0.png\" alt=\"image.png\" \/><\/div>\n<p>5-9. \u4ee3\u7801\u501f\u7528\u4e86\u8fd9\u4e2a\u4ee3\u7801\u3002\u7a0d\u5fae\u505a\u4e86\u4e00\u4e9b\u4fee\u6539\uff0c\u4ee5\u4e0b\u662f\u8d34\u51fa\u6765\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">AWS<\/span>    <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">aws-sdk<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">speech<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">require<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">@google-cloud\/speech<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">client<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">speech<\/span><span class=\"p\">.<\/span><span class=\"nx\">SpeechClient<\/span><span class=\"p\">();<\/span>\r\n<span class=\"kd\">var<\/span> <span class=\"nx\">s3<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">AWS<\/span><span class=\"p\">.<\/span><span class=\"nx\">S3<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">apiVersion<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">2012-09-25<\/span><span class=\"dl\">'<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"nx\">exports<\/span><span class=\"p\">.<\/span><span class=\"nx\">handler<\/span> <span class=\"o\">=<\/span> <span class=\"kd\">function<\/span><span class=\"p\">(<\/span><span class=\"nx\">event<\/span><span class=\"p\">,<\/span> <span class=\"nx\">context<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"kd\">var<\/span> <span class=\"nx\">bucket<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">event<\/span><span class=\"p\">.<\/span><span class=\"nx\">Records<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">].<\/span><span class=\"nx\">s3<\/span><span class=\"p\">.<\/span><span class=\"nx\">bucket<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"kd\">var<\/span> <span class=\"nx\">key<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">event<\/span><span class=\"p\">.<\/span><span class=\"nx\">Records<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">].<\/span><span class=\"nx\">s3<\/span><span class=\"p\">.<\/span><span class=\"nx\">object<\/span><span class=\"p\">.<\/span><span class=\"nx\">key<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"kd\">var<\/span> <span class=\"nx\">name<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">key<\/span><span class=\"p\">.<\/span><span class=\"nx\">split<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">.<\/span><span class=\"dl\">'<\/span><span class=\"p\">)[<\/span><span class=\"mi\">0<\/span><span class=\"p\">];<\/span>\r\n    <span class=\"kd\">var<\/span> <span class=\"nx\">params<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"na\">Bucket<\/span><span class=\"p\">:<\/span> <span class=\"nx\">bucket<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"na\">Key<\/span><span class=\"p\">:<\/span> <span class=\"nx\">key<\/span>\r\n    <span class=\"p\">};<\/span>\r\n    <span class=\"nx\">s3<\/span><span class=\"p\">.<\/span><span class=\"nx\">getObject<\/span><span class=\"p\">(<\/span><span class=\"nx\">params<\/span><span class=\"p\">,<\/span> <span class=\"kd\">function<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">data<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span><span class=\"p\">,<\/span> <span class=\"nx\">err<\/span><span class=\"p\">.<\/span><span class=\"nx\">stack<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"kd\">var<\/span> <span class=\"nx\">audioBytes<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">data<\/span><span class=\"p\">.<\/span><span class=\"nx\">Body<\/span><span class=\"p\">.<\/span><span class=\"nx\">toString<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">base64<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n            <span class=\"kd\">const<\/span> <span class=\"nx\">audio<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span> <span class=\"na\">content<\/span><span class=\"p\">:<\/span> <span class=\"nx\">audioBytes<\/span> <span class=\"p\">};<\/span>\r\n            <span class=\"kd\">const<\/span> <span class=\"nx\">config<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"na\">encoding<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">LINEAR16<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n                <span class=\"na\">sampeRateHertz<\/span><span class=\"p\">:<\/span> <span class=\"mi\">16000<\/span><span class=\"p\">,<\/span>\r\n                <span class=\"na\">languageCode<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">ja-JP<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"p\">};<\/span>\r\n            <span class=\"kd\">const<\/span> <span class=\"nx\">request<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"na\">audio<\/span><span class=\"p\">:<\/span> <span class=\"nx\">audio<\/span><span class=\"p\">,<\/span>\r\n                <span class=\"na\">config<\/span><span class=\"p\">:<\/span> <span class=\"nx\">config<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"p\">};<\/span>\r\n\r\n            <span class=\"nx\">client<\/span><span class=\"p\">.<\/span><span class=\"nx\">recognize<\/span><span class=\"p\">(<\/span><span class=\"nx\">request<\/span><span class=\"p\">).<\/span><span class=\"nx\">then<\/span><span class=\"p\">(<\/span>\r\n                <span class=\"nx\">data<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"kd\">const<\/span> <span class=\"nx\">response<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">data<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">];<\/span>\r\n                    <span class=\"kd\">const<\/span> <span class=\"nx\">transcription<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">response<\/span><span class=\"p\">.<\/span><span class=\"nx\">results<\/span><span class=\"p\">.<\/span><span class=\"nx\">map<\/span><span class=\"p\">(<\/span>\r\n                        <span class=\"nx\">result<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">result<\/span><span class=\"p\">.<\/span><span class=\"nx\">alternatives<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">].<\/span><span class=\"nx\">transcript<\/span>\r\n                    <span class=\"p\">).<\/span><span class=\"nx\">join<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"se\">\\n<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n                <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">name<\/span><span class=\"p\">);<\/span>\r\n                <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">transcription<\/span><span class=\"p\">);<\/span>\r\n\r\n                <span class=\"p\">}).<\/span><span class=\"k\">catch<\/span><span class=\"p\">(<\/span><span class=\"nx\">err<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">error<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">ERROR:<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">err<\/span><span class=\"p\">);<\/span>\r\n                <span class=\"p\">}<\/span>\r\n            <span class=\"p\">);<\/span>\r\n        <span class=\"p\">};<\/span>\r\n    <span class=\"p\">});<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d128037434c4406bf6687\/19-0.png\" alt=\"image.png\" \/><\/div>\n<h2>\u7ed3\u679c<\/h2>\n<p>\u8bf7\u901a\u8fc7 console.log(transcription) \u5c06\u6587\u5b57\u8d77\u7a3f\u7ed3\u679c\u8f93\u51fa\u5230 transcription \u4e2d\u3002\u8bf7\u5728 CloudWatch \u65e5\u5fd7\u4e2d\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n<h2>\u6700\u7ec8<br \/>\n\u6700\u7ec8, \u6211\u53ea\u9700\u8981\u4e00\u4e2a\u9009\u9879<\/h2>\n<p>\u867d\u7136\u6210\u4e3a\u4e86\u4e00\u4e2a\u7c7b\u4f3c\u4e8e\u53c2\u8003\u6587\u7ae0\u7684\u52a3\u5316\u7248\u6587\u7ae0\uff0c\u4f46\u6211\u628a\u5b83\u4f5c\u4e3a\u5907\u5fd8\u5f55\u6765\u5199\u4e86\u3002<br \/>\n\u4ee5\u4e0b\u662f\u6539\u826f\u70b9\uff0c\u76f8\u5bf9\u4e8e\u52a3\u5316\u7248\u800c\u8a00\uff1a<br \/>\n* 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