July 24, 2001
New commodity
| Only [it] recording MD Walkman
sale-puts and the charge is charge stand attachment which can be
done- in easiness where the installing easiness to use and the
high pitched sound quality are had both as for stereo mode (MDLP)
of MD for a long time and "Group function".
| 
 MD Walkman ‘MZ-R909'
(silver blue red)
*** The Sony marketing company (The president:Kei Kodera
and headquarters:Tokyo port district) puts "Recording MD Walkman"
‘MZ-R909' by which the easiness requested to portable MD <録(unknown
word)> machine <again> installing a variegated function such as
convenient MD "Group function" for the retrieval and the arrangement of
stereo mode (MDLP) and the tune for a long time to use and the high
pitched sound quality recording are achieved on the market.
| Type name |
Sale day |
Hope retail price |
Color |
First monthly production |
Portable mini-disc recorder
"Recording
MD Walkman"
『MZ-R909』 |
August 21 |
Open price |
Silver and blue
Red |
50,000 |
This machine can be
recorded for a long time by the MDLP format on one disk. Moreover, a
quick retrieval was enabled by installing "Group function" by which a
lot of tunes were able to be arranged to the group of the favorite up to
99. A large-scale liquid crystal display and (*jogudaiyaru*) that
three-line display is possible are installed in the main body, and the
operativeness of the edit and the character input, etc. has improved
greatly.
The ratio of the signal processing performance on the tone
quality side so far. - The high pitched sound quality which
approaches the MD deck equipped with DSP TYPE-R for doubled new
development ATRAC is achieved. Additionally, the sound jumps and is
little 心 distribution and can enjoy music pleasantly for a vibration
which installs 音飛び(unknown word) guard mechanism “G-PROTECTION"
((*jiipurotekushon*)), and is consecutive.
※1:
Comparison in standard stereo mode with our company "Recording MD
Walkman" ‘MZ-R900'
- Main feature
- *** Equipped with function "<group> function" <1.
stereo recording for <MD> a long time and reproduction mode
(MDLP)>
- Equipped with "Group function" that quick tune retrieval in
addition to MDLP which can enjoy stereo recording and reproduction for
a long time is possibleA recording each group and an additional
recording to an existing group can be easily done. The deletion of the
group and two or more groups including making of the recorded tune and
a group group name input bring together, and are possible in one
usually as for the edit work in each order change group of each group.
- It is not possible to reproduce * with the equipment of the tune
recorded in the MDLP mode of non-correspondence in the MDLP mode.
- * In the equipment equipped with "Group function", the group
setting is not recognized.
- * In the group function, it is possible to control it dividing up
to 99 groups or less.
- 2. Equipped with large-scale three line display liquid crystal
display
- The operativeness at the edit and 曲選び(unknown word) has
improved greatly with a large-scale liquid crystal of nine characters
× three lines. Especially, the character palette method to use a
large-scale screen is adopted, and it is possible to input it
comprehensible and easily in the character input with concentrated
control under the right of the liquid crystal key.
- 3. Equipped with (*jogudaiyaru*)
- Familiar (*jogudaiyaru*) is installed in the main body in a
portable telephone of Sony. Because the screen scrolls to length
according to the speed by which (*jogudaiyaru*) is turned, [it] can
reach the place in which [it] wants to see at last according to the
desire. It is possible to do easily only by turning (*kurukuru*) and
(*jogudaiyaru*) as the retrieval of the tune and the group also sees
three-line display liquid crystal display and pushing.
- 4. Equipped with DSP TYPE-R for new development ATRAC
- "TYPE-R" installed in high spec MD deck etc. of Sony is adopted
for the heart and DSP(Digital Signal Processor) of the MD sound. The
signal processing performance is improved to about the ratio twice so
far the high pitched sound quality which approached the MD deck was
achieved though a small main body of an average machine only for the
reproduction.
- * The operation with the charge pond and the dry battery
corresponds to this function.
- * There is no ON/OFF of this function.
- * Processing by “TYPE-R" is not done at the MDLP mode.
- 5. Equipped with 音飛び(unknown word) guard function
“G-PROTECTION" ((*jiipurotekushon*))
- The efficient 音飛び(unknown word) guard mechanism "G-PROTECTION"
which Sony developed is installed aiming at "音飛び(unknown word) 0".
The sound jumps and is little 心 distribution, and can enjoy music
pleasantly for a consecutive vibration because (*S) deals
corresponding to the shake and the vibration in every case
momentarily.
- 6. "Charge stand" attachment which can be easily charged only
by putting it
- 7. Other features
- *** For about <reproduction> 84 battery lives which it is
continuous hours of <-> enhancementAchievement (of -)- when LP4 mode reproduces
when Sony alkali AA dry battery is used together with attached chewing
gum type nickel hydrogen charge pond
- - Remote control "Stick controller" attachment by which
operativeness is pursued
- - Equipped with index search function in remote control by which
retrieval of quick tune is enabled
- - Equipped with "Personal disk memory" by which setting my
inclination is memorized
- - Equipped with "(*wantatchiijekt*) mechanism" that putting disk
in and out is easy
- - Equipped with "(*dejitarusaundopuriset*) mechanism" which can be
customized to tone quality of my specification
- - Equipped with "Speed control function" which can be reproduced
by tempo of favor
- - Equipped with "Melody timer" of which [it] informs at specified
time
- Main specification
| Form |
Disk digital audio system |
| Reproduction reading method |
Non-contact optics reading (semiconductor laser use) |
| Number of channels |
Stereo two channels/monaural one channel |
| Sampling rate |
44.1kHz |
| Voice compression method |
ATRAC(Adaptive TRansform Acoustic Coding) ATRAC3:LP2 stereo
and LP4 stereo |
| Frequency characteristic |
20〜20,000Hz±3dB |
| (*waufurattah*) |
Below measurement limit value |
| Input terminal |
Microphone:Stereo mini-Jack
Analog input:Stereo
mini-Jack
Optical, digital input:Optical mini Jack
- An
analog input and an optical, digital input are Jack of using
combinedly. |
| Output terminal |
Headphone (stereo mini-Jack)
The maximum output level
5mW+5mW
Line output (stereo mini-Jack)
The headphone and the
line output are Jack of using combinedly (switch type in the main
body menu). |
Externals size
/maximum and externals sizes |
The maximum projection does not include about
78.9×72.0×17.1mm.
/about 80.0×75.5×20.5mm (width × height
× interior taking) |
| Mass |
About 110g(Only the main body :)/about 137g(contained charge
pond). |
| Attached goods |
Headphone with liquid crystal remote control, charge stand, AC
power adaptor, rechargeable nickel hydrogen battery ‘NH-14WM',
(*batteriikyaringukeis*), dry battery case, and (*kyaringupohchi*)
(each 1) |
| Power supply |
One (optional) rechargeable nickel hydrogen battery ‘NH-14WM'
(attachment) and AA type dry battery
AC power adaptor
(attachment) and AC100V50/60Hz
Car battery code:DCC-E230
(optional) and external power supply Jack (ratings DC3V) |
| Charge time |
*** During about <charge> 3.5-main body hour for about
six hours in the charge stand |
Battery duration
([It] reproduces/record) |
(1) Chewing gum type nickel hydrogen
Charge
pond |
(2) Sony alkali AA
Dry battery (1) |
(3) At using together |
| Standard mode |
For about 24 hours/about 8.5 hours |
For about 34 hours/about 7.5 hours |
For about 64 hours/about 20 hours |
| LP2 mode |
For about 27 hours/about 11 hours |
For about 40 hours/about 12 hours |
For about 75 hours/about 28 hours |
| LP4 mode |
For about 31 hours/about 14 hours |
For about 45 hours/about 15 hours |
For about 84 hours/about 37
hours |
|
