Pioneer CT-W616DR Operating Instructions - Page 8

I FRONT PANEL FACILITIES I DigitaI-NR The DigitaI-NR is a noise reduction system developed originally by PIONEER. It is an innovative system capable of reducing almost all hiss noise regardless of how the tape being played was recorded. *(This system can reduce noise based on operations during playback only.) When a tape is played by selecting Dolby NR, the Dolby NR circuit reduces hiss noise then the DigitaI-NR circuit eliminates residual hiss noise remaining after the Dolby processing, thereby achieving a very high S/N. Though this system has been set so that it is activated every time a tape is played, it is also possible to cancel its operation by the procedure described below. • Sufficient NR effect may not be obtained in case the level of noise recorded in the tape is higher than the hiss noise level. To cancel the DigitaI-NR, press the DECK 1 TIME/COUNT button and DECK II TIME/COUNT button simultaneously while the power is ON. (The DIGITAL indicator on the center of the front panel should turn off,) To activate the DigitaI-NR again, perform the same operation as above again. The DigitaI-NR cannot be turned ON/OFF in recordpause mode. Also note that the DigitaI-NR is always ON in the initial condition after turning the power from OFF to ON. DIGITAL FLEX SYSTEM (Except for U.S. model of CT-W606DR) • DIGITAL FLEX system: DIGITAL Frequency Level ,_.,_ander system. (hereafter abbreviated to FLEX system) This system automatically compensates high and low frequency level balance above 1 kHz according to the 1/f curve during playback. Generally, the envelope line of sound energy distribution of Hi-Fi sounds corresponds statistically with the 1/f curve. The 1/f curve indicates that if the frequency doubles, the leve decreases by approx. Half of the original frequency level • During playback, the FLEX system automatically compensates tapes with poor sound quality at high frequency levels of 1 kHz and over, based on the appropriate auditory characteristics. The FLEX system is designed to improve high frequency reproduction in thelO kHz range be up to about 10 dB (max.), particularly in tapes with peer sound cladty and sound presence at high frequency levels, If the playback tape sound matches the 1/f curve, the FLEX system defeats compensation adjustment automatically. • When you press the FLEX button to turn the FLEX system on and start playback, the FLEX indicator flashes and compensation adjustment begins. Compensation adjustment takes within approximately 3-5 seconds to complete, depending on the music source. The indicator changes from a flashing to a steadily lit condition when the adjustment is completed. • When the FLEX system is engaged, each music selection is automatically adjusted during playback. System operation status is indicated by the FLEX indicators (flashing or steadily lit.) NOTE: • Whenatapehasbeenrecordedatahighfrequencylevelabove the compensation/eve/, the FLEX system operation is automatical/y defeated during p/ayback. 8 €_ I DIGITAL SUPER AUTO BLE XD (Except for U.S. model of CT-W606DR) • With commercially available cassette tapes, sensitivity and frequency characteristics might differ slightly from one another, even though the same sound adjustment is set for them. To utilize tape characteristics to the maximum possible and realize an ideal recording which reproduces the source exactly, optimum recording level (sensitivity) and equalizer values must be set accordingly for each tape. In many conventional tape decks, standard values are fixed for standard tapes, thus nullifying the subtle differences between individual tapes. Perfect tuning by ear through use of fine adjustment controllers for bias and sensitivity is difficult and requires a lot of effort. It is especially difficult with a 2-head deck where the recording sound cannot be monitored, The AUTO BLE on this unit automatically adjusts bias, level and equalizer by using a microprocessor to set the optimum recording characteristics accordingly for each tape. • AUTO BLE XD (XD: eXtended Dynamic range) This function enables recording with expanded dynamic range in the high range by combining our unique bias control technology with conventional AUTO BLE. After adjusting the above bias, level, and equalization (BLE), this system checks the tape's recording capability by using relatively high level high-range test signals. During recording, AUTO BLE XD controls the bias to maximize the tape's recording capability. This makes possible a more faithful recording of sources having a wide dynamic range in the high range. • You can switch between AUTO BLE and AUTO BLE XD. Refer to page 13 for the switching procedure. • Since this system controls the quality of recording itself, the clar- ity of the sound will be maintained even when the tapes are played back on another cassette deck. I DIGITAL TDNS SYSTEM I DIGITAL TDNS system: Iape Duplication Noise Supresser system (hereafter abbreviated to TDNS) Ordinary tape copy contains much noise due to the hiss noise of the copy source master tape and the noise due to tape recording bias, The TDNS is a system which allows to copy tape by reducing the noise. It reduces the hiss noise in the master tape by applying OigitaI-NR processing and the bias noise by decreasing the recording bias amount while the played music signal is in the no-signal condition. (As s result, the noise in the middle of music is equivalent to the master tape and the noise between music can be reduced,) • The TDNS copy may not be effective with a master tape in which the noise between music and music signal are hardly distinguishable. In such a case, use the normal-speed or high-speed copy function,