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There are two factors that
lie behind 1-bits ability to create high-quality sound.
The first is its ultra-high speed sampling, which allows 1-bit
to faithfully convert analogue signals to digital with great
time resolution. The other is 1-bits ability to eliminate
signal deterioration. Calculating only the fluctuations between
the quantised samples results in a simple signal conversion.
As well, by transmitting and amplifying 1-bit digital signals
instead of analogue signals, the 1-bit amplifier greatly reduces
the amount of signal deterioration. |
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modulation technology converts analogue sound information by
modulating analogue signals onto high frequency 1-bit digital
signals. In other words, it generates digital signals while
maintaining the characteristics of the original analogue waveform.
This method minimises the loss and distortion of sound information
that normally occur in the recording and transmitting processes.
It also eliminates the need of a D/A converter by generating
analogue signals with only a low-pass filter to drive the speakers. |
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Analogue signals are capable
of reproducing quality sound with great reverberation and depth
but their physical characteristics result in signal deterioration
during the recording and transmitting processes. PCM multi-bit
signals have less noise and distortion, but undergo decimation
and complementing of information during A/D and D/A conversion.
Like PCM multi-bit signals, 1-bit signals are also digital.
However, they are not subject to decimation or complementing,
and are free from deterioration in the recording and transmitting
processes. |
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There are three main advantages.
First, 1-bit technology allows for amplification faithful to
the source with no exposure to external noise or physical interference.
Second, 1-bit amplifiers have a small footprint, and are compact.
Third, they are superior to conventional amplifiers in terms
of energy efficiency. |
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Theoretically, 1-bit amplifiers
achieve a frequency response of 0Hz to 100kHz and a dynamic
range of 120dB. This means that 1-bit amplifiers have the ability
to reproduce the 100kHz sound produced by high-hat cymbals and
the 100dB dynamic range of orchestras. |
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