The following paragraphs are from an essay about the recovery of early audio recordings. To make the passage most logical and cohesive, arrange the paragraphs in the correct sequence.
- 1[3] In 1857, French inventor Édouard-Léon Scott de Martinville patented the phonautograph, a device designed to transcribe sound waves onto paper. The machine used a horn to channel sound toward a flexible diaphragm, which vibrated a stylus that traced lines onto a rotating cylinder covered in lampblack soot.
- 2[1] For over a century and a half, these sheets of paper—stored in the archives of the French Patent Office—remained completely silent. Because the inventor had never intended for his machine to play back the sound, the soot drawings were treated merely as visual artifacts, capturing the shape of sound waves but keeping their acoustic content locked away.
- 3[2] This silence was finally broken in 2008 by a team of American scientists. Using high-resolution optical scanning technology, the researchers mapped the delicate soot indentations on the paper and used custom software to translate the visual wave patterns back into digital audio signals.
- 4[4] The resulting audio file revealed a haunting, high-pitched voice singing a snippet of the French folk song 'Au Clair de la Lune.' Recorded in 1860, this ten-second clip became the oldest known recording of a human voice, predating Thomas Edison’s phonograph by nearly two decades.
Answer
The most logical sequence begins with the introduction of the phonautograph, transitions to the long silence of the soot drawings, describes the technological breakthrough that read the soot, and concludes with the historical significance of the recovered audio.
The correct order follows a clear chronological and logical progression. The essay begins by introducing the invention of the phonautograph and how it recorded sound. Next, it transitions to the long period during which these records remained silent, using the phrase 'these sheets of paper' to link back to the first paragraph. The third paragraph begins with 'This silence was finally broken,' creating a direct connection to the silence described in the second paragraph. Finally, the fourth paragraph describes the resulting audio file generated by the 2008 scans and concludes with the significance of the recording.
Step-by-Step Solution
Key Concept
Identifying transitional hooks and pronoun references to establish logical cohesion between paragraphs.