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    Insomnia treatment consist mostly of sleeping pills consumption but this circuit is an alternative for that and consists of a simple circuitry that generates a rain sound effect. The japanese researches were the first to discover that sound of rain has a relaxing effect. With the help of this simple circuit we can generate the rain sound which can be a sleep aid in case of insomnia.

    T1 is used as a noise generator and its signal is amplified by the 741 IC and thru T2, R7 and C4 goes to a headset with low resistance. If you do not want to use the headphones then use a speaker with impedance between 4 and 16 Ω. With the help of P1 can adjust sound level and with P2 the tone.

    Schematic of Rain Sound Generator Circuit

    sleep aid circuit schematic

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    27 Responses to "Rain Sound Generator – Sleep Aid in Case of Insomnia"

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    1. Jim Keith Jim Keith says: on July 16, 2012 at 5:28 pm

      woops–I think you have a problem with the output connection…

      • Thank you, I have modified the schematic.

      • khushnood says: on May 27, 2013 at 1:34 pm

        hi P.Marian ,

        im 4th semester student of electronics engg. at university of enng. and technolgy taxila,pakistan .i saw ur post related to rain sound project using 741.the Proteus simulation is not giving any o/p .kindly send me detailed documention which could further clarify my project work . emaail:11-ect-29@students.uettaxila.edu.pk

      • corazlo says: on May 28, 2013 at 10:50 pm

        I made this and it is working. I will upload picture next day.

      • plz send me the modified circuit.. tell me what are t1,t2,p1,p2

    2. I voted with yes because the rain sound it really is a sleep aid in my case. For example in rainy days I feel so sleepy that I just can’t stay awake.

    3. There should have been another option: I do not know, have to find out

    4. CHRYSBLAISE says: on August 7, 2012 at 2:07 am


    5. what is C4,P2 and P1 in the circuit diagram?
      help me as early as possible….

      • Jim Keith Jim Keith says: on September 6, 2012 at 1:24 pm

        C4 is an aluminum electrolytic capacitor.
        P1 & P2 are potentiometers wired as rheostats (variable resistors).

    6. aashi says: on September 27, 2012 at 8:17 pm

      Which component in this circuit produces such specific sound?

    7. aashi says: on September 27, 2012 at 8:23 pm

      How much will this circuit cost? If I get some approximation only then I can decide whether to make it in my mini or major project.

    8. Could it be used with 1.5 or 3 volt battery?
      If not,pl give one which will work with 1.5 to 3VDc.

    9. De-Law says: on February 7, 2013 at 2:19 pm

      @ p mariam, can u pls upload d modified cct diagram?

    10. corazlo says: on May 17, 2013 at 3:58 pm

      This is not working. You sure there is no mistakes?

    11. the sound the rain is incredibly pleasing it does tend to put me to sleep

    12. hi p.marian

      I am a electronics and communication engineering student i am working in rain sound generator circuit but i can not understand actually what is P1 and P2? Can u please tell me as soon as possible…?


    13. what is the right-bottom symbol (with 4…32 ohm) mean? thank you.

    14. nice your circuit

    15. how the circuit generate the rain sound. can we change the transistor 2N1613 with other transistor?

    16. aren´t the IC741 No. wrong? the LM741 i have has has only 8 pins.

    17. the pin numbering of IC 741 is wrong. IC is generally available in 8 pin package.
      please refer any other ciruit using IC 741 or its datasheet.

    18. replacement for transistor 2N1613 please reply soon

    19. Can you please tell me a replacement for the transistor 2n1613?

    20. could you please tell me the values of the resistor variable you using

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