Marantz HD-AMP1 Owner s Manual in English - Page 70

Contents Connections Playback Settings Tips Appendix WMA (Windows Media Audio) This is the audio compression technology developed by Microsoft Corporation. WMA data can be encoded using Windows Media® Player. To encode WMA files, only use applications authorized by Microsoft Corporation. If you use an unauthorized application, the file may not work properly. 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. Dynamic range The difference between the maximum undistorted sound level and the minimum discernible level above the noise emitted by the device. 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. Protection circuit This is a function to prevent damage to devices within the power supply when an abnormality such as an overload, excess voltage occurs or over temperature for any reason. Linear PCM This is an uncompressed PCM (Pulse Code Modulation) signal. This is the same system used for CD audio but uses 192 kHz, 96 kHz, and 48 kHz sampling frequencies on Blu-ray Disc or DVD and provides higher resolution than CD. Front panel Display Rear panel 70 Remote Index