Electronics Projects, Digital Voice Recorder Circuit 60 120 Seconds article
"analog circuits projects, " tagged with
The position of the material, is indicated on the print. (Refer to the wiring diagram.)
ISD1760 (60sec), ISD1790 (90sn), ISD17120 (120 seconds)
7805 3 LEDs bulbs
1 Piece condenser microphone
3 pcs 3 pcs 1K 4.7K 82K 1Adet
2 pcs 10K
7pcs 100nF 2 Piece 4.7 mF 1 Quantity: 470mf
Press the left key sw-Recorder
4 buttons, one for aux in jack connector
(Registration: yellow, busy, green, power: red LED)
When I first made this circuit, has been a bit crappy. Then again I’m sure … I pressed formally organized.
VOICE RECORDER CIRCUIT EXPLANATIONS :
60 seconds that records audio output of this circuit is available on its own . For professional use aux outs from the desired output power of an amplifier can get .
Condans in the circuit with a very sensitive microphone can record voice , as you can position the jumper on the circuit , “Mic ” to ” Aux ” a taking records from the aux in jack you can get . This entry DVDs , VCDs , telephone, radio , mp4, you can save by applying the direct sound from devices such as PC . As Speaker 0.5W speaker from 4-16 ohms can use .
Our mains voltage for at least 5 volts. You can feed 12 volts . About a 5 volt regulated voltage for the circuit which does not influence the function of the fluctuation . When we give our power circuit , power circuit of us burned our Ledisi will notify you that it is ready to work .
HOW TO RECORD WE DO ?
To record rec / play key must be pressed and you should see the LED is on record . Record LED is lit for those of us of the circuit indicates that it is currently in the recording . Meanwhile, the LED should look busy . Because of our busy integrated LED lamp all their movements are translated for us . For example, our key while pressing the record , this LED lights means there is space for recording . If the light goes out when this record is the area to be filled . To end recording, press the switch again to stop the recording you can record swim .
PLAY: Play button and we can listen to the recording . Meanwhile, the busy LED will flash and the sound will go off when disconnected .
VOLUME : Volume button and we can also adjust the volume . Each press of the button will increase our fourth stage sound if pressed again after the 5th time will be minimal . Then again our will increase each time .
If we engage our attention first press the Delete button LED lamp flashes twice and are prepared to integrate deleted . If we continue to press our hands without ever lifting , busy – lit LED goes off 7 times full and integrated with our very deletes all . This deletion can not be undone .
INTERNATIONAL MOVEMENT OF RECORDS
Is the forward button forward button . Before time runs out and then close the registry key , you can later add records . When you press the key again will make the registry entries received second place . Then the third row will make records . Here are the records of these “advanced ” button and you can choose . Every order we push through the next record . When you press the play button and then record player . If you hold a long time to reach the last record , and our place we hit the first one listing will be heard from the speaker means .
Note: The Aux input sound from the mic when you record the position of the jumper in place do not forget to Aux .