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MK-137B Change Your Voice to Robot, Lady, Gentleman Voice!
With Microphone, Line-In, Amplifier, Voice Changer Kit
MYCOMKITS.COM's ”MK-137B Change Your Voice to
Robot, Lady, Gentleman Voice! With Microphone, Line-In,
Amplifier, Voice Changer Kit” is a voice changer kit
which uses sound modulator HT8950 chips of Holtek.
HT8950 is voice frequency conversion IC which built in
the amplifier for microphones. This raises the frequency
of the sound inputted from an attached microphone or
line-in into 4/3 time, 8/5 time, and twice, or lowers it
into 8/9 time, 4/5 time, and 2/3 time conversely. This
can change the sound of your voice and PC, or an
electronic instrument into high voice or low voice.
Furthermore, this can change your voice also into a
robot's voice. Moreover, this can make a pleasant effect
from shaking ±8 Hz of each sound during playing by a
vibrato function.
Therefore, you can include this in a stuffed-animal suit,
a doll, or a robot, you can utter pleasant voice, you can
connect with electronic instruments, such as an electric
guitar, using line-in, or you can put it in voice generating
equipment and use this.
Note: A power supply and a speaker are not attached to
a kit. Prepare separately by yourself.
SPECIFICATIONS & FEATURES:
Supply Voltage
From DC6V to 12V (Notes:
neither a battery cell nor an
electric power supply is attached.)
Prepare separately by yourself.)
Sampling Frequency 8 kHz
Vibrato function
±8-Hz vibrato function built-in
Frequency modulation You can adjust three steps at a
time up and down and Normal.
4/3, 8/5, 2, 1, 8/9, 4/5, 2/3 times.
(Set up with a push-button switch
or a DIP switch)
AD, DA converter
8-bit AD, DA converter built-in.
Excessive input display LED When input volume is large,
it lights up.
(When the light is switched on,
distortion and an oscillation may
occur)
Switches for Setup Set up modulation frequency with
four push-button switches and
one DIP switch
Input (two types)
Condenser microphone Change it
with a slide switch. 2. Line-in
(terminal block)
Output
It can drive 8ohms of output
speaker directly (about 1W)
(Amplifier built-in by LM386.
Since distortion becomes large
although a gain can be chosen 200
times, always use it with 20
times. )( Note: a speaker is not
attached in this product.) We
recommend to use beyond 2W
speaker to get better sound)
How to Use:
Connect Power Supply: Connect the battery or DC
power supply of +6V to +12V to the terminal block
(screw type terminal) J2 or the DC jack J1. When you
use DC jack, use a plug that has 2.1mm shaft diameter
with positive voltage and 5.5m outside diameter. (Notes:
A power supply is not included in a product).
Connect speaker: Connect an 8-ohm speaker to the
terminal block J5. (Notes: A speaker is not included in a
product).
Setting for conversion frequency-setting switch:
DIP switch S2 (use three of four switches)
SW2
SW1
SW0
Behavior
Modulatio
n Degree
1
1
1
Push switch,
TGU
、
TDG
、
ROBOT Available
Refer to
Note
1
1
0
UP 3
X 2
1
0
1
UP 2
X 8/5
1
0
0
UP 1
X 4/3
0
1
1
Normal
X 1
0
1
0
Down 1
X 8/9
0
0
1
Down 2
X 4/5
0
0
0
Down 3
X 2/3
Set to the frequency which wishes SW0 of DIP switch
S2, SW1, and SW2 according to the following table.
When a switch is OFF, it means "1". "0" (zero) means
ON. (One of four switches is a to be determined). If a
power supply is turned ON with all "1", it will become
ROBOT mode.
Push-button switches S4 and S5 (They are available
only when all DIP switches are "1") : You can raise
frequency by push-button switch UPWARD (S5) from
lowest frequency for every step. On the contrary, you
can lower frequency for every step from the highest
frequency by DOWNWARD (S4).
Push-button switch S3 (available, only when all DIP
switches are "1"): It changes your voice into a robot's
voice by push-button switch ROBOT (S3). When the
whole of SW2/1/0 is 1 turning ON, it becomes ROBOT
sound automatically.
Push-button switch S6: If push-button switch VIBRATO
(S6) is pushed, it will shake ±8 Hz of the present
frequency.
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