Acoustics. Noise from shooting ranges - Prediction of projectile sound Ingestion-build-221493 The test methods are based

The test methods are based on the visual examination of the output of office document scanners and digitally born test targets on film image recorders

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Acoustics. Noise from shooting ranges - Prediction of projectile sound Ingestion-build-221493 The test methods are based1 Scope This part of ISO 17201 provides a computational model for determining the acoustical source level of projectile sound and its one third octave band spectrum, expressed as the sound exposure level for nominal mid band frequencies from 12,5 Hz to 10 kHz. It also gives guidance on how to use this source level to calculate the sound exposure level at a receiver position. This part of ISO 17201 is intended for calibres of less than 20 mm, but can