Instant Audio Processing with Web Audio

Learn how to use the Web Audio API to implement audio effects such as loop stitching, audio ducking, and audio equalization through practical, hands-on recipes

Overview

• Learn something new in an Instant! A short, fast, focused guide delivering immediate results
• Implement audio stitching using Web Audio’s built-in scheduling API
• Learn Web Audio’s scripting abilities by building a broadcast-style audio ducking effect
• Build a 5-band equalizer using Web Audio’s built-in audio processing functionality

In Detail

Web Audio is an upcoming industry standard for web audio processing. Using the API, developers today can develop web games and applications with real-time audio effects to rival their desktop counterparts.

Instant Audio Processing with Web Audio How-to is your hands-on guide to the Web Audio API. Using clear, step-by-step exercises, this book explores the API and how to apply it to produce real-time audio effects such as audio stitching, audio ducking, and audio equalization.

This book is an in-depth study of the Web Audio API. Through a series of practical, step-by-step exercises, this book will guide you through the basics of playing audio all the way to the task of building a 5-band audio equalizer.

Along the way, we’ll learn how to utilize Web Audio’s scripting functionality to build real-time audio effects such as audio stitching and ducking. Then, we’ll use this knowledge to build a basic audio layer step-by-step which can be used in our web applications/games.

With its in-depth coverage of the Web Audio API and its practical advice on various audio implementation scenarios, Instant Audio Processing with Web Audio How-to is your ultimate guide to Web Audio.

What you will learn from this book

• Understand the fundamental design philosophy underlying the Web Audio API
• Explore the Web Audio interfaces in depth
• Detect and initialize a Web Audio context
• Play audio files from the Web and desktop
• Implement basic and advanced audio looping behaviors
• Build a 5-band sound equalizer using Web Audio’s processor nodes
• Make a reusable audio layer step by step

Approach

Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. A concise, recipe-based approach to use Web Audio’s automation functionality to produce interesting audio effects such as audio stitching and ducking.

Who this book is written for

This book is designed for developers with some HTML and JavaScript programming experience who are seeking to learn about Web Audio. Experience with AJAX and web server installation/configuration is a plus but is not a necessity in order to follow the content of the book.

學習如何使用Web Audio API來實現音頻效果，例如循環拼接、音頻淡入淡出和音頻均衡等，通過實際的、實用的方法。

概述：
- 在瞬間學到新知識！一本短小、快速、專注的指南，立即獲得成果。
- 使用Web Audio的內建排程API實現音頻拼接。
- 通過構建廣播風格的音頻淡入淡出效果，學習Web Audio的腳本能力。
- 使用Web Audio的內建音頻處理功能構建一個5頻帶均衡器。

詳細內容：
Web Audio是網頁音頻處理的即將到來的行業標準。使用這個API，開發者可以開發具有實時音頻效果的網頁遊戲和應用，與桌面應用相媲美。

《Web Audio即時音頻處理實作指南》是你的實踐指南，教你如何使用Web Audio API。通過清晰、逐步的練習，本書探索了API的使用方法，並教你如何應用它來產生音頻拼接、音頻淡入淡出和音頻均衡等實時音頻效果。

本書深入研究了Web Audio API。通過一系列實用的、逐步的練習，本書將引導你從播放音頻的基礎知識一直到構建一個5頻帶音頻均衡器的任務。

在此過程中，我們將學習如何利用Web Audio的腳本功能來構建音頻拼接和淡入淡出等實時音頻效果。然後，我們將使用這些知識逐步構建一個基本的音頻層，可在我們的網頁應用/遊戲中使用。

通過對Web Audio API的深入介紹和對各種音頻實現場景的實用建議，本書《Web Audio即時音頻處理實作指南》是你學習Web Audio的最佳指南。

本書將教你：
- 理解Web Audio API背後的基本設計理念。
- 深入探索Web Audio的接口。
- 檢測並初始化Web Audio上下文。
- 從Web和桌面播放音頻文件。
- 實現基本和高級音頻循環行為。
- 使用Web Audio的處理器節點構建一個5頻帶聲音均衡器。
- 逐步製作可重複使用的音頻層。

方法：
本書提供了實用的、逐步的指令和清晰的解釋，用於最重要和最有用的任務。以簡潔的食譜方式使用Web Audio的自動化功能，產生有趣的音頻效果，如音頻拼接和淡入淡出。

本書適合具有一些HTML和JavaScript編程經驗的開發者，他們希望了解Web Audio。有AJAX和網頁服務器安裝/配置經驗是一個加分項，但不是必需的，以便理解本書的內容。