Acoustics Standards

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Calibrated Device Condenser Microphone
Range
● 1 inch (in accordance with IEC 61094-1 LS1 and 61094-4 WS1)
   Frequency: 20 Hz to 12.5 kHz
● 1/2 inch (in accordance with IEC 61094-1 LS2 and 61094-4 WS2)
   Frequency: 20 Hz to 20 kHz
● 1/4 inch (in accordance with IEC 61094-4 WS3)
   Frequency: 20 Hz to 20 kHz
Uncertainty
● 1 inch: 0.12 dB (20 Hz to 40 Hz),0.08 dB (40 Hz(excluded) to 8 kHz),0.16 dB (8 kHz(excluded) to 12.5 kHz)
● 1/2 inch: 0.12 dB (20 Hz to 40 Hz),0.08 dB (40 Hz(excluded) to 8 kHz),0.16 dB (8 kHz(excluded) to 20 kHz)
● 1/4 inch: 0.12 dB (20 Hz to 40 Hz),0.08 dB (40 Hz(excluded) to 8 kHz),0.16 dB (8 kHz(excluded) to 16 kHz),0.20 dB (16 kHz(excluded) to 20 kHz)
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