Table 3 Data from the development, calibration, and characterization of the hardware used in the experiment are stored in the “characterization data” folder.

lineLength.csv

Measurements of the lengths of fishing line used to suspend targets in the free-field environment

m

targetElevation.csv

Measurements of the elevation of the targets in the free-field environment

m

targetMass.csv

Measurements of mass of the targets

g

O.pdf

Dimensioned drawing for the block letter O target

inch

Q.pdf

Dimensioned drawing for the block letter Q target

inch

notes.csv

Qualitative notes about any anomalies that occured during each data collection, along with the time stamp of the start of the collection

acquistionParams.csv

Properties of the data acquistion system during the acoustic collection

various

sensorCoordinates.csv

Measured coordinates of the speaker and microphones in the home position

m

waveformCapture.csv

Recording of the transmitted waveform, sampled at 100 kHz

V

speakerPattern.csv

Measured directivity pattern of the speaker at 10 kHz, 20 kHz, and 30 kHz

dB re: maximum

micPattern.csv

Measured directivity pattern of the channel 1 microphone at 10 kHz, 20 kHz, and 30 kHz

dB re: maximum

micCalibration.csv

Manufacturer provided electroacoustic calibration (with uncertainty) of each microphone used in the experiment at 250 Hz

V/Pa

micFrequencyResponse.csv

Manufacturer provided frequency response of each microphone used in the experiment relative to the response at 250 Hz

dB re: V/pa at 250 Hz

preampCalibration.csv

Manufacturer provided gain calibration of each microphone preamplifier channel

dB re: input