Do you remember?
In July 1995, the FCC issued a Notice of Proposed Rulemaking (NPRM)
regarding a new satellite digital audio radio service (DARS). The NPRM
outlined that the service would provide 30 or more channels of national
digital audio programming to fixed and mobile receivers, with the
potential for each licensee to offer CD-quality audio channels.
Licensing options included assigning all of the available spectrum
(2.31GHz to 2.36GHz) to only the four current DARS applicants,
licensing some of the spectrum at the time and holding some in reserve
for future applicants or opening the spectrum to all interested
The FCC proposed that licensees begin construction of their first
satellite within one year's grant of their applications. The proposal
also required the launch and operation of the first satellite within
four years of a license grant, and full operation of a satellite system
comprised of more than one satellite within six years of a grant.
That was then
In 1993, Fidelipac's Dynamax DCR1000 series digital cartridge
machine was introduced. It was designed to directly replace analog cart
machines by using 3.5" floppy disks as carts. This allowed it to
support standard high-density 2MB and triple density 13MB diskettes.
Audio could be sampled at 22.05kHz, 25.75kHz, 32kHz and 44.1kHz and
encoded using the Apt X-100 coding algorithm.
The system was made up of two components: the DCR1020 master player
and the DCR1040 record module. All units were ⅓-rack space wide,
measuring 5.5" high x 5.5" wide x 12.875" long. They could sit alone as
tabletop units or could be mounted in an optional rack-mount
The front panel of the master player also featured a backlit LCD
display showing machine status, cut identification, time, title and
outcue on a two-line, 24 character-per-line screen. In addition, the
record module's front panel contained peak-reading LED audio level
meters and an overload indicator.
The Fidelipac Dynamax DCR1000 involved simple and familiar aspects
of machine operation in spot recorder/players. It provided the quality
of digital audio for about the same price as the analog cart
The capacity of a 2MB floppy was just less than one minute of stereo
audio at a 32kHz sampling rate. The triple-density floppy provided
longer recording times, but they never gained popular acceptance. Other
digital recorders and computer-based automation systems were introduced
soon after the DCR1000.
Sample and Hold
A look at the technology shaping radio
How Do Americans Feel About Paying for Streaming Internet Audio and
Source: eNation/Edge Communications survey, March 2003