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Original Message

Revisionist history

Posted by E-Stat on April 19, 2017 at 06:56:34:
Analog on playback is limited to 15-16 kHz, not 35 kHz.

If that were true, the CD-4 records produced in the 70s would never have worked.

The second half of his statement, however, is true:

"Specifically, the frequency bandwidth of LPs and FM multiplex broadcasts were limited from 30 Hz to 15 KHz.

Yes, FM radio was limited by convention to that range. Why? Because, like the CD-4 recordings, the other channel rode on a higher frequency carrier. In the case of multiplexed FM, it is 19khz, while the back channels of CD-4 rode on a 30kHz carrier.

The poor man must be deaf. Here are some other *jewels*:

"192 KBPS is considered "CD quality." No human can hear any difference between an MP3 at that rate (or higher) and a CD. "

"CD quality is so accurate that you can't hear any difference between a properly-recorded CD and the original microphone feed."