我有一个简单的JavaScript可以加载声音:
prefix = 'modules/sounds/';
_sounds = ['nameOfSound','nameOfSound','nameOfSound'];
for (var sound in _sounds) {
if (_sounds.hasOwnProperty(sound)) {
var cached = _sounds[sound];
cached.audio = new Audio(prefix + cached.src);
}
}
}
我有一项执行以下功能的服务:
this.play = function(trackName) {
_sounds[trackName].audio.play();
};
我想要的是对声音的简单承诺,所以当我调用它时,我会遇到类似以下情况:
soundService.play('boom').then(function(){
do something here
});
那有可能吗?
您可以实施设置:
function play(url) {
return new Promise(function(resolve, reject) { // return a promise
var audio = new Audio(); // create audio wo/ src
audio.preload = "auto"; // intend to play through
audio.autoplay = true; // autoplay when loaded
audio.onerror = reject; // on error, reject
audio.onended = resolve; // when done, resolve
audio.src = path + url + suffix; // just for example
});
}
现在您可以致电:
play("boom").then(function() {
});
由于音频元素的缓冲行为,因此没有意义。指示预加载将告诉浏览器您要播放音频文件。在我看来,这对于客户端和系统也更好。
function play(url) {
return new Promise(function(resolve, reject) { // return a promise
var audio = new Audio(); // create audio wo/ src
audio.preload = "auto"; // intend to play through
audio.autoplay = true; // autoplay when loaded
audio.onerror = reject; // on error, reject
audio.onended = resolve; // when done, resolve
audio.src = url
});
}
play(sample).then(function() {
alert("Done!");
})
<script>
var sample = "data:audio/wav;base64,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"
</script>
播放(播放音效/播放录音)
问题内容: 我希望能够在程序中播放声音文件。我应该去哪里看? 问题答案: 我写了下面的代码,效果很好。但我认为它仅适用于格式。
我刚刚开始使用JavaFX。我知道它的基本原理。我尝试使用media和mediaplayer类播放一个声音,叫做“sound.mp3”。我正在eclipse中编程,我在src文件夹中有声音文件,与“(默认包)”相同的文件夹。下面是我的代码: 请告诉我我做错了什么。 下面是来自控制台的错误消息:
我希望能够在我的程序中播放声音文件。我应该去哪里?
问题内容: 我想用Swift播放声音。 我的代码在Swift 1.0中可用,但现在在Swift 2或更高版本中不再起作用。 问题答案: 最可取的是,您可能想使用 AVFoundation。它提供了使用视听媒体的所有必要条件。 更新: 某些评论中建议与 Swift 2 , Swift 3 和 Swift 4 兼容。 斯威夫特2.3 迅捷3 Swift 4(与iOS 13兼容) 确保更改乐曲的名称以及
问题内容: Octave似乎假设某个特定的声音播放实用程序将在系统上可用,但似乎没有提供指定备用声音的功能。在以下错误中,Octave正在寻找,这不是在所有系统上都可用的实用程序。 八度:38>声音(beamformed_20) sh:ofsndplay:找不到命令 是否可以使用Octave配置设置或代码片段来指定适合系统的实用程序? 问题答案: 在我的一台Linux机器上,我创建了以下ofsnd