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The previous article on Audio Worklet detailed the basic concepts and usage. Since its launch in Chrome 66 there have been many requests for more examples of how it can be used in actual applications. The Audio Worklet unlocks the full potential of WebAudio, but taking advantage of it can be challenging because it requires understanding concurrent programming wrapped with several JS APIs. Even for
HTML5でゲームやリッチなコンテンツを作る上で欠かせない「Web Audio API」 しかしコイツがなかなか・・・モバイルでの特殊実装やメモリ使用量まわりで色々と闇を抱えていて・・・ ということで闇を見つけ次第、検証結果や対処方法など記録を残していきます。 iOS SafariはBGMなどの自動再生ができない iOS Safariは以下ようなコードでサウンドの自動再生ができない const AudioContext = window.AudioContext || window.webkitAudioContext; const ctx = new AudioContext(); const request = new XMLHttpRequest(); const url = 'https://zprodev.github.io/web-audio-test/assets/Campf
Is it possible to use digital musical instruments as browser inputs? With the Web MIDI API, the answer is yes! The best part is, it’s fairly quick and easy to implement and even create a really fun project. As the web continues to evolve and new browser technologies continue to emerge, the line between native and web development becomes more and more blurred. New APIs are unlocking the ability to
Chrome 64 comes with a highly anticipated new feature in Web Audio API - AudioWorklet. This article introduces its concept and usage for those who are eager to create a custom audio processor with JavaScript code. Please take a look at the live demos on GitHub. Also the next article in series, Audio Worklet Design Pattern, might be an interesting read for building an advanced audio app. Background
はじめに 音楽をやってる人にとって、録音した練習音源をいかに共有するかというのはかなり重要な課題かと思います。 Twitterは公式クライアントで動画をアップロード・再生することが可能であり、重宝するソリューションかなと思います。今回はTwitterに、録音したデータをアップロードする手順を解説したいと思います。 注 今回使うffmpegというツールはオタクなツールなので、ユーザインタフェースぽちぽちしてやりたいって人向けではありません。 ffmpeg https://ffmpeg.org/ FFmpeg ffmpegはフリーソフトながら、動画や音声の編集に際して多彩なことができる優秀なソフトウェアです。 かの有名な「携帯動画変換君」(古い)も、このffmpegをベースに使用して作られているようです。 ffmpegのインストール手順 Windowsでffmpegを使用するにはバイナリ(実行
Or other limited memory Chrome device.# So what do I do?Since the amount of supported data varies so widely and you can't find the amount of data in a SourceBuffer, you must get it indirectly by handling the QuotaExceededError. Now let's look at a few ways to do that. There are several approaches to dealing with QuotaExceededError. In reality a combination of one or more approaches is best. Your a
自分のブログ「Real World HTTPが出版されます」で紹介したAmazon Pollyを使って本の推敲をする、というやつを軽く紹介します。 ささっと2-3日で作ったSphinx拡張を使っています。本エントリーではツールの使い方も紹介はしますが、Sphinx以外のツール向けに似たような変換機能を作りたい人の参考のために、ツールが何をしているかも紹介します。今まで使う機会もなかったので実は初AWSでした。 リポジトリはこれです。BSDライセンスです。 https://github.com/shibukawa/sphinxcontrib-ssmlbuilder SSMLというのは、Amazon Pollyの入力に使う音声合成用のデータフォーマットのことです。W3Cの規格になっており、PanasonicとかTOSHIBAの人も規格制定に加わっています。Amazon Pollyはこのうちのい
Robert O'Callahan. Christian. Repatriate Kiwi. Hacker. People complain that Web Audio provides implementations of numerous canned processing features, but they very often don't do exactly what you want, and working around those limitations by writing your own audio processing code in JS is difficult or impossible. This was an obvious pitfall from the moment the Web Audio API was proposed by Chris
UGURUS offers elite coaching and mentorship for agency owners looking to grow. Start with the free Agency Accelerator today. I’ve been thinking about sound on websites for a while now. When we talk about using sound on websites, most of us grimace and think of the old days, when blaring background music played when the website loaded. Today this isn’t and needn’t be a thing. We can get clever with
This is a guest post from the Safari team about changes to how Safari handles HTML5 video and audio auto-play. These changes may affect compatibility with your websites. As follow up to Safari’s updated video policies for iOS last year, this week we announced we are making important changes to auto-play policies on the Mac. These changes provide users the ability to browse the web with fewer distr
UGURUS offers elite coaching and mentorship for agency owners looking to grow. Start with the free Agency Accelerator today. Web Audio API lets us make sound right in the browser. It makes your sites, apps, and games more fun and engaging. You can even build music-specific applications like drum machines and synthesizers. In this article, we’ll learn about working with the Web Audio API by buildin
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