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Zorluk: OrtaInferences from the Text

In the first century BCE, the Roman architect Vitruvius described the placement of bronze resonance vessels (echeia) tuned to specific musical pitches in cavities beneath the seating tiers of open-air theaters, asserting that they actively amplified actors' voices. Modern acoustic modeling of the theater at Epidaurus, however, indicates that these vessels would have produced a negligible effect on vocal projection due to their narrow absorption bandwidths and insufficient acoustic power coupling. Instead, researchers found that the periodic geometry of the stepped limestone benches acted as an inadvertent acoustic filter: the corrugated surface scattered and significantly attenuated low-frequency ambient sounds (below 500 Hz)—such as wind turbulence and audience murmurs—while permitting the higher-frequency sound waves characteristic of speech consonants to travel to the upper tiers with minimal acoustic loss.

Based on the passage, which of the following statements about the acoustics of the theater at Epidaurus is most strongly supported?

  1. A
    The installation of tuned resonance vessels degraded overall sound clarity by absorbing the higher-frequency sound waves essential for speech comprehension.
  2. The enhanced intelligibility of vocal performances was achieved primarily through the suppression of ambient low-frequency noise rather than through direct voice amplification.Cevap
  3. C
    Vitruvius derived his architectural claims from empirical acoustic experiments conducted in enclosed indoor halls rather than in open-air venues.
  4. D
    The stepped limestone benches increased the volume of vocal performances by converting low-frequency ambient energy into higher-frequency sound waves.
  5. E
    Spectators in the lower seating tiers experienced poorer speech intelligibility than those in the highest tiers because ambient low-frequency sounds accumulated near the stage.

Cevap

The enhanced intelligibility of vocal performances was achieved primarily through the suppression of ambient low-frequency noise rather than through direct voice amplification.
The passage explicitly contrasts the failure of active voice amplification (via resonance vessels) with the success of passive acoustic filtering (via limestone tiers that attenuated low-frequency background noise while preserving speech consonants). This directly supports the conclusion that clarity was achieved through noise suppression rather than amplification.

Adım Adım Çözüm

1
Analyze the passage's evaluation of voice amplification claims
Modern testing showed Vitruvius's claim of voice amplification via resonance vessels was unfounded, having negligible physical effect.
Establishing that active amplification was ineffective eliminates explanations relying on sound boosting.
2
Synthesize the mechanism identified by modern researchers
The stepped limestone benches acted as an acoustic filter by attenuating low-frequency noise (below 500 Hz) while allowing higher-frequency consonants to pass unimpeded.
This shows that speech clarity resulted from reducing competing background noise rather than amplifying the sound source.
3
Evaluate the answer choices against this synthesis
The statement describing intelligibility as arising from low-frequency noise suppression rather than direct amplification directly matches the text's core contrast.
Inference questions require choosing the claim that is directly supported by the combination of textual facts without unstated assumptions.

Anahtar Kavram

Drawing Valid Inferences from Contrastive Textual Evidence
Tahmini Süre:1m 30s
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Konular

Inferences from the Text

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