Web Audio: Radio, Sound Archives, Telephone Tools
This Web page will track developments and links in on-demand Web audio,
including online radio, sound archives, multipoint conferencing and telephone
services. This includes sites providing models of audio use, including sound
clips of music, sounds and radio broadcasts. See the current sections of this page on:
Sound Formats, Sound Archives,
Stations and Live Net Radio, and Net
Phones. All operating systems ship with software that enables users to
digitize audio with the computer's built-in microphone or with an attached
Sounds files use storage formats that originated on different hardware platforms
but now are readable by players that work in many different operating systems.
Such audio formats include: WAV, AU, AIFF, MIDI, MP3 and more.
If your favorite sounds are in a format not made for
the audio player on your computer,
there are numerous places on the Net that store free conversion utility
programs. One place to look is Usenet newsgroup called
The Vincent Voice Library at
Michigan State University provides samples from the largest academic voice
library in the nation. This includes actors, Presidents and more.
Sound Archive search of Google.
Live Net Radio
Radio can also be transferred live to multiple sites, and done simultaneously
over the Internet. This process uses a special Multicast Backbone (MBone)
and special mrouters as a part of the Internet Multicasting Service. Most
Net users unconsciously send a packet of data from their machine #1 to
a second machine, #2. But if we want the data to go to several other machines,
the packet has to be sent multiple times to multiple sites, greatly increasing
the demand for transmission bandwidth. This is called unicasting. The way
around this problem is to use multicasting. With multicasting, the user sends one packet and it will be copied
along the way to go to 20 other workstations. Where mrouters do not exist,
the packets go disguised as unicast packets. This applies not only to audio but
to video as well.
MBone is also a system design that is still in development (MBONE
Net Phones (Internet Telephony/VoIP)
VoIP allows the user to make telephone calls over the Internet avoiding various
degrees of local and long distance telephone charges. To participate, buy a combination audio
headset and microphone, which can be found in common outlets such as Walmart and
Radio Shack for under ten dollars.
A Power User's hint:
If your browser supports it, after you have started your download
of a large audio file, choose New Window from your file menu, wait for
a second window to appear, then activate whatever feature you have for
stopping transmission (click "stop" in Netscape). Move the windows so you
can watch the progress of the download at the bottom of your screen. You
can now jump to another area of the net while the first window is still
downloading the audio! When the transfer is done, switch back to the first
window and watch the video at your own pace.
[ Updated June 14, 2004 | Page Top. |
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