What Is Streaming Audio?
| Streaming audio |
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What Is Streaming Audio? It's a method of delivering an audio signal to your computer over the Internet, and differs from the "normal" method of receiving Internet audio in one important way: instead of having to download a ".wav", ".au" or other type of file completely before being able to listen to it, you hear the sound as it arrives at your computer, and therefore do not have to wait for a complete download (which would be difficult with a live broadcast anyway!). As the data arrives it is buffered for a few seconds and then playback begins. As the audio is playing, more data is constantly arriving (or streaming), and as long as you are receiving a constant stream of data, you should hear constant audio. Obviously you'll need a soundcard, speakers (or headphones) and the appropriate software for this all to work. Think of a bucket (the buffer) with a hole in the bottom, being topped up with water (the data). As long as there is water in the bucket, it will continue to pour out of the hole, and will do this as long as there is water in the bucket. Similarly, as long as there is data in the buffer, you will continue to hear sound. Unfortunately the buffer can empty due to congestion on the Internet which may stop you from receiving data - this explains the "net congestion - rebuffering" message you may see from time to time with the RealAudio software. |
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