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Tests
Far away
Distant, with echo
Close-up
With ringing
Pattern A
Pattern B
Quiet sound, amplified
Same sound, with echo
Tones at 10k and 1k
Combinations of tests form songs
Tests
Far away
Distant, with echo
Close-up
With ringing
Pattern A
Pattern B
Quiet sound, amplified
Same sound, with echo
Tones at 10k and 1k
Combinations of tests form songs