Meaning of Phonautograph in Urdu

Meaning and Translation of Phonautograph in Urdu Script and Roman Urdu with Wikipedia Reference, Image,

Urdu Meaning or Translation

phonautograph

aik aala jis say aawaz ki lehrain qalam band ho jati hain

ايک آلہ جس سے آواز کي لہريں قلم بند ہو جاتي ہيں

Object reference not set to an instance of an object.

Wikipedia

The phonautograph is the earliest known device for recording sound. Previously, tracings had been obtained of the sound-producing vibratory motions of tuning forks and other objects by physical contact with them, but not of actual sound waves as they propagated through air or other media.

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