Audio Database


Pioneer D-07
140,000yen(1993 release)

The DAT deck which carries the correspondence to a 96kHz high sampling, and legato linking conversion.

For the Recording play of the high region component over 20kHz, the wide mode corresponding to the high sampling which raised the sampling frequency to 96kHz, twice, from conventional 48kHz was developed, and, thereby, the Recording-play frequency also amounts to 44kHz, twice over the past. For achievement of this technology, double-speed-ization of tape speed is begun, and the drum rotational frequency which was 2,000rpm conventionally is also accelerated to 4,000rpm in the time of the wide mode, and also the band of head amplifier is also doubled [ 4.7 to 9.6MHz, and ].
* In a linearly polarized mode, the play of what was recorded in the wide mode is impossible the conventional standard SP mode and for a long time, and play time serves as half [ of SP mode ] in the wide mode.

In order to realize a natural music play of excess 20kHz also in the time of a canonical mode, legato linking conversion is carried.
Legato linking conversion is the technology of bringing the frequency component which the sound of a nature and a music have close to a more nearly original signal wave form,A play of the sound nearer to original before recording on a tapes by digital-signal-processing-connecting between datas with a smooth function curve based on the signal recorded on the tapes is possible.
Moreover, the original signal before a register is presumed and the play of a more natural sound is aimed at by performing reappearance with a sound of 20kHz or more according to a 1/f damping characteristics.

An 18-bit multiple bit scheme converter is carried in the A/D conversion part. Furthermore, the occurrence of nonlinear distortion or zero cross distortion is suppressed by loading of the dither circuitry.
The high speed pulse flow digital analog converter of an original development is carried in the D-A-conversion part for the twin. The play of a smoother and natural sound is aimed at by making it operate by 256fs and very high oversampling.
The clean clock circuit which separates and supplies an audio system and a digital system is adopted as a system-clock, and the modification of an SN ratio and a distortion is realized by driving independently the oscillation of the clock which controls a system itself.

AT (All Track) head is carried in the head.
In order to correspond to the head rotation accelerating at the time of the wide mode, the precision technology is supplied, and it has AT structure which performed a 20-micrometer uniform track manipulation to the trances orientation of a track. Furthermore, the welding of the glass is carried out to head each sides, wear resistance is improved, a special polishing manipulation is performed to a gap and the stability of a tapes touch is raised.

The panel stabilizer which used together the rubber vibration insulator which suppresses the fine oscillation around the front panel,The influence of an oscillation is reduced by adoption of a cassette stabilizer [ which holds a tapes certainly and prevents the tone-quality failure by oscillation ], honeycomb chassis [ supporting a mechanism or a circuitry ], large-sized insulator, and bonnet vibration suppression structure etc.

The character recording (character puck) functionality which can record favorite intelligences, including a music name, a title, etc., is carried. Favorite intelligences, including the title of a music name, a player name, and the source etc., can be recorded a maximum of 60 characters at the beginning of each music (start ID fraction), and either remote control or a main unit is possible for a register of a data.
Moreover, the scrolling window of the recorded intelligence is given at a display device at the time of the start of each music, and it is possible during the performance of the music to make it display again by button operation.

The compact disk-Q code synchro start ID recording function is carried, and it is at the digital input sound-recording time from compact disk,The track number in the compact disk-Q code data transmitted to D-07 with a digital interface,Even if start ID is automatically recorded with an index, it changes to a detection of eyes instead of each music by the silent fraction for 2 conventional seconds and there is no silent fraction between music, a register of start ID is certainly possible.
Thereby, the register mistake of start ID by fade-in and a fadeout fraction is canceled.

The TOC (Jump Table segment of Contents) functionality which records intelligences, including the number of total music of a tapes, the performance time of each [ total time and ] music, the start time of each music, the residual quantity of a register fraction, etc., on the location of the beginning of a tapes is carried.

Fade-in and a fadeout carry the digital fader on which the time of a play functions at the time of an analog input sound recording at the time of a play at the time of a digital input sound recording.
Furthermore, the random play which a microcomputer selects a song at random for the operation functionality at the time of a play, and reproduces based on a TOC intelligence to it,The time skip which skips and reproduces only the time to wish forward and backward from the current position,A microcomputer memorizes the point on the tapes at the time of pushing a button, and the fine queue / review convenient for the register and head search of Tip-of-the-Day memory and start ID which play the point by one-touch are carried.

In addition to standard SP mode, the three modes of the prolonged linearly polarized mode of a maximum of 4 hours (at the time of a 120-minute tapes using) advantageous to air checks, such as the wide mode in which a sound-recording play of the wide band up to 44kHz is possible, a satellite broadcasting, and an FM broadcast, are carried.

The part selected carefully is adopted in order to reply to wide band-ization.


Rating of a mode
Form Swivel head scheme digital audio taperecorder
Tape speed 8.15 mm/s (SP), 4.075 mm/s (LP), 16.3 mm/s (WIDE)
Sound-recording time SP: A maximum of 120 minutes
LP: A maximum of 240 minutes
WIDE: A maximum of 60 minutes
Quantifying bit number 16-bit linear
12-bit non-linear
Sampling frequency (SCMS loading) 48kHz (a sound recording/play)
44.1kHz (only a digital recording /play)
32kHz (only SP : a digital recording /play)
32kHz (LP: a sound recording/play)
96kHz (only analog recording /play)
Sound-recording frequency characteristic SP: 2Hz - 22kHz
LP: 2Hz - 14.5kHz
WIDE: 2Hz - 44kHz
SN ratio 92dB or more
Dynamic range 93dB or more
THD 0.004% or less (1kHz)
Wow and flutter Below a limit of measurement (±0.001%W-Peak)
Analog-I/O termination Line input: RCA Pin, one line, 500mV
Line output: RCA Pin, one line, 500mV
Digital-input/output termination Coaxial input terminal: RCA Pin, one line, 0.5 Vp-p
Coaxial output-terminal: RCA Pin, one line, 0.5 Vp-p
An optical input terminal: One line
Optical-power termination: One line
Supply voltage AC100V, 50Hz/60Hz
Power consumption 32W
The maximum Dimensions Width 440x height 141x depth of 375mm
Weight 8kg
Adjunct Wireless remote control CU-D010