SDR
SDR may refer to:
Places
Reports and reviews
Economics, maths and science
Technology
XDR (audio)
XDR (eXtended Dynamic Range, also known as SDR (Super Dynamic Range)) is a quality-control and duplication process for the mass-production of pre-recorded audio cassettes. It is a process designed to provide higher quality audio on pre-recorded cassettes by checking the sound quality at all stages of the tape duplication process. In this way, the dynamic range of audio recorded on an XDR-duplicated cassette can be up to 13 decibels greater.
History
XDR was originally developed by Capitol Records-EMI of Canada in 1982 as "SDR" (Super Dynamic Range). Capitol in the USA then adopted the system for its cassette releases that same year, renaming it "XDR".
Process
The XDR/SDR process involves many steps, the most prominent being:
32Hz, 64Hz, 128Hz, 256Hz, 512Hz, 1000Hz, 2000Hz, 4000Hz, 8820Hz, 11,025Hz, 18,000Hz
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Science Fiction Boy
by: Star Starsee saw baby didn't give a damn........too bad
and I can't live thinkin' bout that..........so sad
baby I won't die
I still have my glitter life
I'm a rock horror guy
science fiction boy loves an angel.......oh yeah
all hip guys have wigstock in their eyes.......oh yeah
cause it's a cool thing that glitter gutter
swing.........yeah yeah
baby I'll just dance
like the transylvanians
It's a planet janet jam
science fiction boy loves an angel.......oh yeah
damn damn damn the lovers
damn damn all the others
damn damn undercover love
baby I won't die
I still have my glitter life
I'm a rocky horror guy