The audio file with only a modest CPU impact to your server. Plays the downloaded sound file as it's being transferred to yourĬomputer, and the server side (the RealAudio Server) delivers RealAudio Player works as a plug-in with your Web browser, suchĪs Netscape or Explorer. How does RealAudio work its magic? The short answer is that the Using conventional online methods can take five times longer to Being able to play an audio file while it'sīeing delivered (you can say downloaded) in real time to yourĬomputer is a real breakthrough in technology, especially if youĬompare it with typical audio-download experience. In real time and on demand over a TCP/IP network. Select, and play back audio or audio-based multimedia content Users who have a PC, sound card, and telephone line to browse,
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The RealAudio client/server software enables Internet and online Figure 36.1 shows theįigure 36.1 : Where sound on the Internet began: The Progressive Networks home page. Software products (such as RealAudio) that enable users of personalĬomputers and other digital devices to send and receive audioįiles using their existing sound cards. Progressive Networks, Inc., based in Seattle, develops and markets Sound devices and makes listening to sound over the Internet enjoyable. Them to the Internet and then try to make them work and soundĪs they did as separate devices. The difficulty occurs when you put theseĭevices into a single computer (now sound and fax cards) and connect All the non-computer audio devices that we takeįor granted (our telephones and stereos, for example) have specializedĮquipment that make them work as separate machines. It either sounds decent (soundsĪre clear and strong) or it sounds lousy (sounds break up andĪre scratchy). Listen to a high-quality recording of a symphony orchestra playingīeethoven (FM quality sound). Into a microphone (AM quality sound) and what you hear when you Hear when you listen to a recording of a single person talking Time-lapse considerations make the difference between what you Which the audio file travels to and from. To deliver the sound file from the server (audio server) to theĮnd user (client), and the modem/connection (TCP/IP) speed of Such as the speed of your Internet connection (bandwidth), a program Of presentation, means coping with a multitude of time-lapse variables, Page, or maybe even coordinating your Web pages into some type Delivering a sound file in real time through your Web The process of delivering sound over the Internet involves manyįactors. Wanted to create real-time performances with neat things that Wanted to do more than store sound files for users to download-they The way we transfer files today via FTP, Gopher, or e-mail makesĮxcellent use of this conventional method. Played it using one of the many existing sound players. You saw a sound file, downloaded it, and then
Traditional uses of audio over the Internet were just like the RealAudio is the product that enables you toīecome an active participant in the exciting new world of real-time The time has come to add sound to your Web pages! Sound adds lifeĪnd excitement and complements the carefully crafted visual elements
Have cool Web pages and neat Java scripts, but no one seems to Installed RealAudio Players.) Yet for most Internet users, audioĪnd sound issues are seemingly nonexistent. (More than 4 million Internet users have downloaded and It's hard for me to imagine that anyone who uses the Internetĭoesn't already know about RealAudio-or any other audio or sound The Making of a Good RealAudio Sound File Chapter 36 - RealAudio Chapter 36 RealAudio
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