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The frequency conversion section doubles or quadruples the sampling frequency for playback
of high-frequency signals that a following stage generates.
The range expansion section applies the JVC-exclusive range expansion processing to
compensate for the conversion distortion that occurs when the analog signal is converted into
a digital signal.
The human ear, it is said, cannot hear frequencies above 20kHz, but removing frequencies
higher than 20kHz changes the waveform of audible frequencies, resulting in a signal that
sounds different from the original. The range expansion section overcomes this problem by
deducing the original waveform of a signal before A/D and D/A conversion and modifying the
signal’s waveform accordingly. For playback of frequencies above 20kHz generated by this
waveform processing, the range expansion section has a frequency conversion section
preceding it.
Range Expansion Block Diagram
Range Expansion Section
Range Expansion Section
CC Converter
CC Converter
Frequency Conversion Section
Frequency Conversion Section
RX-D702
Summary of Contents for RX-D702
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