From 310fd066e91f454b990372ffa30e803cc8120975 Mon Sep 17 00:00:00 2001 From: Florian Merz Date: Thu, 11 Feb 2021 12:56:40 +0100 Subject: unslug zh-cn: move --- .../baseaudiocontext/createconvolver/index.html | 131 +++++++++++++++++++++ 1 file changed, 131 insertions(+) create mode 100644 files/zh-cn/web/api/baseaudiocontext/createconvolver/index.html (limited to 'files/zh-cn/web/api/baseaudiocontext/createconvolver/index.html') diff --git a/files/zh-cn/web/api/baseaudiocontext/createconvolver/index.html b/files/zh-cn/web/api/baseaudiocontext/createconvolver/index.html new file mode 100644 index 0000000000..2cbe395edc --- /dev/null +++ b/files/zh-cn/web/api/baseaudiocontext/createconvolver/index.html @@ -0,0 +1,131 @@ +--- +title: AudioContext.createConvolver() +slug: Web/API/AudioContext/createConvolver +translation_of: Web/API/BaseAudioContext/createConvolver +--- +

{{ APIRef("Web Audio API") }}

+ +
+

{{ domxref("AudioContext") }}的方法createConvolver()能创建一个{{ domxref("ConvolverNode") }}，通常用来对你的音频应用混响效果。在 Convolution规范定义 中查看更多信息。

+
+ +

语法

+ +
var audioCtx = new AudioContext();
+var convolver = audioCtx.createConvolver();
+ +

返回值

+ +

{{domxref("ConvolverNode")}}对象。

+ +

例子

+ +

下面的例子展示了一个 AudioContext 创建一个 混响器节点 的基本使用方法。基本前提是你创建一个包含声音样本的 AudioBuffer 用作混响环境 (称之为脉冲响应,) 和在混响器中应用。 下面的例子使用了一个简短的示例音乐厅人群效果,所以混响效果应用深度和回声。

+ +

更多完整例子请查看Voice-change-O-matic demo (中app.js的代码)。

+ +
var audioCtx = new (window.AudioContext || window.webkitAudioContext)();
+var convolver = audioCtx.createConvolver();
+
+  ...
+
+// grab audio track via XHR for convolver node
+
+var soundSource, concertHallBuffer;
+
+ajaxRequest = new XMLHttpRequest();
+ajaxRequest.open('GET', 'concert-crowd.ogg', true);
+ajaxRequest.responseType = 'arraybuffer';
+
+ajaxRequest.onload = function() {
+  var audioData = ajaxRequest.response;
+  audioCtx.decodeAudioData(audioData, function(buffer) {
+      concertHallBuffer = buffer;
+      soundSource = audioCtx.createBufferSource();
+      soundSource.buffer = concertHallBuffer;
+    }, function(e){"Error with decoding audio data" + e.err});
+}
+
+ajaxRequest.send();
+
+  ...
+
+convolver.buffer = concertHallBuffer;
+ +

规范

+ + + + + + + + + + + + + + +
SpecificationStatusComment
{{SpecName('Web Audio API', '#widl-AudioContext-createConvolver-ConvolverNode', 'createConvolver()')}}{{Spec2('Web Audio API')}} 
+ +

浏览器兼容

+ +
{{CompatibilityTable}}
+ +
+ + + + + + + + + + + + + + + + + + + +
FeatureChromeFirefox (Gecko)Internet ExplorerOperaSafari (WebKit)
Basic support{{CompatChrome(10.0)}}{{property_prefix("webkit")}}{{CompatGeckoDesktop(25.0)}} {{CompatNo}}15.0{{property_prefix("webkit")}}
+ 22 (unprefixed)		6.0{{property_prefix("webkit")}}
+
+ +
+ + + + + + + + + + + + + + + + + + + + + + + +
FeatureAndroidFirefox Mobile (Gecko)Firefox OSIE MobileOpera MobileSafari MobileChrome for Android
Basic support{{CompatUnknown}}26.01.2{{CompatUnknown}}{{CompatUnknown}}{{CompatUnknown}}33.0
+
+ +

另见

+ + -- cgit v1.2.3-54-g00ecf