Table of Contents
Advertisement
What Is WiDIF-HP?
WiDIF-HP (WiDIF: Wireless Digital Interface Format, HP: High Profile) is a wireless digital audio interface format developed
by Sony.
It enables highly secure transmission with high sound quality and low system latency, and supports simultaneous multi-
channel operation.
High Sound Quality Wireless Transmission
WiDIF-HP uses 24 bit/48 kHz sampling, resulting in superb sound that surpasses
CD quality. Dynamic range of more than 106 dB, wide frequency response
of 20 Hz to 22 kHz, and a low system latency of 3.4 ms** ensure excellent
performance. Additionally, there is no compander, resulting in faster response
than is possible with conventional analog wireless systems.*
* Unless otherwise specified, this refers to analog wireless systems that include a compander.
Simultaneous Multi-Channel Operation
Because WiDIF-HP is highly resistant to interference, about 50 percent more channels can be operated simultaneously, compared to
analog systems.
Analog Wireless System
Intermodulation free special channel allocation is necessary.
Encrypted Transmission Provides Security
Security is an important requirement for wireless systems handling the transmission of audio signals. In an analog wireless transmission
system, the transmitted audio signal is at risk of being intercepted by a receiver of an outside system. When using FM modulation,
audio signals can be received by anyone with the right equipment and some technical knowledge. By contrast, the digital audio
wireless transmission system transmits encrypted audio data, which mitigates the risk of such interception and provides highly secure
transmission for even the most critical applications.
Analog Wireless System
FM-modulated
audio signal
The risk of being intercepted by
a receiver of an outside system.
WiDIF-HP Specifications
Sampling frequency
Quantization
Frequency response
Dynamic range
THD
Occupied bandwidth
Modulation principle
Audio latency
** When DWM-01, DWT-B01, and DWR-R01D are used in
combination. When analog output is combined with the
DWR-S01D, the latency rating is 3.6 milliseconds.
Digital Wireless System (WiDIF-HP)
Equally spaced easy channel allocation is available.
Digital Wireless System (WiDIF-HP)
Digitally modulated
coded audio
48 kHz
24 bit
20 Hz – 22 kHz
106 dB typ. (A-weighted)
0.03% or better
192 kHz or less
π/4 Shift QPSK
3.4 milliseconds **
Encrypted data
5
What Is WiDIF-HP?
Advertisement
Table of Contents
