MP3 is a digital music format which allows CD tracks to be reduced to around a tenth of their normal size without a significant loss of quality. ![]() The media player reads the pnm or rtsp URL from the file and then plays the stream. smil file and launches the user's media player. When a user clicks on such a link, the user's web browser downloads the. This is a small text file containing a link to the audio stream. In many cases, web pages do not link directly to a RealAudio file. Some alternative protocols have been developed which work better for live broadcasts. ![]() Using http streaming works best with pre-recorded files. In this case, the RealAudio file is retrieved similarly to a normal web page, but playback begins as soon as the first part is received and continues while the rest of the file is downloaded. It is possible to stream RealAudio using HTTP. RealAudio was developed as a streaming media format, meaning that it can be played while it is downloaded. This makes Real Audio a common format for many internet radio stations. ![]() Real Audio is often used as a streaming audio format (can be played at the same time as it's downloaded) due to its ability to conform to low bandwidths. Files of this format usually have the extensions of RA, RAX, RM or RAM. It was first introduced by RealNetworks in 1995, the current version being Real Audio 10.
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