Sampling frequency
Sampling involves taking a reading of a sound wave (analog signal) at
regular intervals and expressing the height of the wave at each reading in
digitized format (producing a digital signal).
The number of readings taken in one second is called the “sampling
frequency”. The larger the value, the closer the reproduced sound is to the
original.
Speaker impedance
This is an AC resistance value, indicated in Ω (ohms).
Greater power can be obtained when this value is smaller.
Bit rate
This expresses the read amount per 1 second of video/audio data
recorded in a disc. A larger number means higher sound quality, but also
means a larger file size.
o
Network
AirPlay
AirPlay sends (plays) contents recorded in iTunes or on an iPhone/iPod
touch to a compatible device via the network.
WEP Key (network key)
This is key information used for encrypting data when conducting data
transfer. On this unit, the same WEP key is used for data encryption and
decryption, so the same WEP key must be set on both devices in order for
communications to be established between them.
Wi-Fi
®
Wi-Fi Certification assures tested and proven interoperability by the Wi-Fi
Alliance, a group certifying interoperability among wireless LAN devices.
WPA (Wi-Fi Protected Access)
This is a security standard established by the Wi-Fi Alliance. In addition to
the conventional SSID (network name) and WEP key (network key), it also
uses a user identification function and encrypting protocol for stronger
security.
WPA2 (Wi-Fi Protected Access 2)
This is a new version of the WPA established by the Wi-Fi Alliance,
compatible with more secure AES encryption.
139
