Audio: Difference between revisions

72 bytes added ,  10 March 2004
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(the case for audio-only delivery)
 
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== ubiquity of transceivers ==
== ubiquity of transceivers ==


There are literally ''tens of billions'' of receivers capable of transmitting audio signals.  This compares quite favourably to the number of [[Bluetooth]] devices.  It would take an overwhelming argument for the absolute necessity of text or video signals to make a service that required them for [[Consumerium buying signal]] desirable.  Historically, one could note that [[industrial radio]] was quite feasible and in wide use before the 1920s, while [[commercial radio]] was in wide use in the 1930s.  However, the addition of [[video]] for [[television]] did not occur in [[developed nation]]s until the 1950s, and the further addition of point-to-point still [[image]] and [[text]] communication wasn't possible until [[fax]] and [[email]] in the 1980s.  And even by the 1990s it was not common to have devices capable of a wide variety of signals.
There are literally ''tens of billions'' of receivers capable of receiving audio signals, and almost as many (e.g. all [[telephone]]s) capable of also transmitting.  This compares quite favourably to the number of [[Bluetooth]] devices.  It would take an overwhelming argument for the absolute necessity of text or video signals to make a service that required them for [[Consumerium buying signal]] desirable.  Historically, one could note that [[industrial radio]] was quite feasible and in wide use before the 1920s, while [[commercial radio]] was in wide use in the 1930s.  However, the addition of [[video]] for [[television]] did not occur in [[developed nation]]s until the 1950s, and the further addition of point-to-point still [[image]] and [[text]] communication wasn't possible until [[fax]] and [[email]] in the 1980s.  And even by the 1990s it was not common to have devices capable of a wide variety of signals.


== central role in culture ==
== central role in culture ==
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