Tom Wells
rimember
Online
Posts: 4533
Antique Radio Repair/Restoration- Send a PM
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« Reply #93 on: June 14, 2012, 01:47:10 AM » |
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I'm sure we're through the worst of it, IF we decide so.
We are our number one enemy, unless we stop torturing public property for the profits of the increasingly fewer.
Now, about information, the most efficient rf expenditure is cw code, where a good watt on a good day will talk to the other side of the world. The mode is slow and depends on the sender to edit and send the most essential facts. Detail and character are stripped unless lots of time bandwidth is used to describe whatever. Anyone who ever read ALL CAPS 5-BIT BAUDOT NEWSWIRE COPY UNDERSTANDS HOW IT BECOMES THE JOB OF THE READER TO INTERPRET THE NUANCE THAT Was finally provided a little better by ascii with (gasp) 7-bits!
If we compare digtal modes to analog modes, we're finally up the point where a wired 768 kpbs here at my house will finally deliver a 128kbps file without glitching, if the delivery "page layout" does not otherwise hog bandwidth. It sounds just a wee bit less well defined than what it sounds like live on a good AM radio, so it's 95-97 %. OK.
I'm sideliing myself here...Additional bandwidth is available to use, ignore or exploit. When multiple paths become available, or available bandwidth becomes cheaper, it is tempting to use the overhead for profit, not more of the "data" (music) the user would desire.
Information is not merely additive, however. In analog real time audio, information conveyed increases exponentially by harmonic content (as provided) (if). Let's not EVEN go into dynamics and perception as additonal information. Which they are.
In digital, serial vs parallel handling has always made a huge difference. The difference is bandwidth vs multiple paths for bandwidth. This is much like what happens in music. As bandwidth available for information increases (increased), at first we were able to transmit audio through a carbon microphone, then about a zillion advancements to the present. (Thanks, Leif !) What happens in real time when a complex analog waveform (particularly music) is broadcast is far more information than any simple "exit 89 on the northbound side is closed due to rendered hog fat spill".
Some have no regard for music, so a lesser form of information delivery is perfectly acceptable and adequate. Those who do listen to music in an active way already understand what high fidelity sound can convey.
If radio can no longer afford to die daily, day to day as it has done for quite a few years, to satisfy the distant bank, then let's decide already that it either is or isn't about money, even though those employed within the media deserve to make a decent living.
This would leave out the debt vultures, the shamsters, the bull@#!$ers, and the varnished bankers themselves.
So, decide whatever you want to think, no effort at all. Die living for money or decide that there's something else far more more valuble behind all of it, and then live THAT. Applies widely beyond radio, but that's the matter at hand here.
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