humming sound recorder

[bramhankarrohit]

i want to make ckt to record humming sound,
so ani ckt is available for it?
and this this sound, i want to transfer into pc.
so how to do this all system?

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[papunblg]

You want humming circuit?

Easy. Make an amplifier, turn the volume to the highest position, touch the input. You will produce hum.
If you want more hum, use a ac to dc powersupply with no ripple filter stage.

 

[bramhankarrohit]

actualy i want to make a circuit which is use to record humming sound and transfer it into computer via bluetooth