SP395 SoundPro Audio Integrator Form7492 Operation Manual
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Energy-Time Graph (ETG): Graphs impulse sound decay energy vs. time or distance
Identifies arrival time of direct sound and audio reflections
Displayed in mS (milliseconds), ft (feet), m (meters)
Decay time ranges: From 0-15 mS to 0-7680 mS
Calculates RT10-RT60 from cursor points on decay curve
Accuracy: Better than ±1% of full scale
Reverb Decay Time: Calculates time for residual pink noise test signal to decay 60 dB in
room
Also RT10, RT20
Range: 0-15 sec
Accuracy: ±2% of full signal
Resolution: 1 mSec
Weighting networks: A, C, Flat, octave, or 1/3-octave band filtered.
Ambient Noise: Ambient noise level must be at least 26 dB lower than test signal
RT60 Time: Extrapolated from Decay Time measurement.
Impedance Meter:
Accuracy: 1 ohm to 50 ohms, ±2%, 50 Hz – 12.5 kHz
1 ohm to 8 kohms, ±10%, 20 Hz – 20 kHz
Speaker Polarity: Tests absolute speaker phase (polarity) by analyzing a proprietary
waveform
Shows polarity of mid-frequency wavefront
Range: 0-100 ft, speaker to SoundPro
Cable Tester: Tests XLR, 1/4”, and RCA audio cables, balanced and unbalanced
Performs analog transmission test to test transmission loss at 1 kHz and 20 kHz
Resolution: 0.1 dB
Performs polarity test
Signal Generator:
Signals: Sine, square, gaussian white noise, pseudo-random pink noise,
band-filtered pink noise
Frequency Range:
Sine: 1 Hz to 22 kHz; fine, 1/3 octave, or one octave steps
Square: 1 Hz to 6 kHz; fine, 1/3 octave, or one octave steps
Noise bandwidth: Full (20 Hz to 20 kHz), octave, or 1/3-octave band filtered
Frequency Accuracy: 50 ppm; 0.005%
Level range: -35 dBu to 17 dBu
Maximum Sine Output Level: Balanced: +16 dBu
Unbalanced: +10 dBu
Level Accuracy: ±0.1 dBu at 1 kHz, ±0.2 dBu, 16 Hz to 20 kHz
Typical: ±0.05 dBu at 1 kHz, ±0.1 dBu, 16 Hz to 20 kHz
Sine distortion: < 0.01% THD at full-scale output
Audio Monitor: Source independent channel for monitoring
Software volume control
Headphone or built-in internal speaker output
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