SP295C SoundPro Audio Analyzer Contractor Version


Overview

The SP295 SoundPro Audio Analyzer Contractor Version is now available with enhanced capabilities to provide the audio analysis tools you need to install, calibrate, or analyze commercial sound venues such as churches, stadiums, meeting rooms, live stages, clubs, etc.

The Auto Time Delay test has been added to the SP295C to test the time delay from each speaker in a home theater surround sound system, as compared to the left channel speaker. It is designed to be used with the DAG5161 SurroundPro Digital Audio Generator. The DAG5161 is used to generate the "Auto Time Delay" signal. This signal sends out pulses to each of the five or six main channels, spaced 100ms apart. The SP295C's microphone detects these pulses and calculates the times between them to determine the time synchronization for each of the speakers.

Features

check A filter version of the Real-Time Analyzer has been added which performs octave and 1/3 octave band analysis of voice or music, with fast response to audio changes.
check The FFT version of the Real-Time Analyzer has been updated with cumulative averaging and Cinema X Curve weighting.
check Now, the Real-Time Analyzer, Sound Pressure Level Meter, Energy-Time Graph, and Reverb Decay Time functions analyze line level input signals from external microphone preamps, mixers, audio processors, or other line level sources, as well as acoustic measurements through the supplied microphone.
check The new Sound Study Graph plots from one minute to 24 hours of average or peak SPL measurement samples, and automatically stores up to 40 plots to memory.
check The Energy-Time Graph, Reverb Decay Time and Sound Level Meter functions now analyze room response with octave or 1/3 octave band filters.
check The Sound Level Meter now adds ANSI-standard Impulse, Peak, and Leq averaging to the standard Fast and Slow averaging.
check The integrated Audio Signal Generator now provides octave or 1/3 octave band-limited pink noise output, and an impedance meter sub-function.
check The SoundPro Contractor version also adds Signal to Noise Ratio; Impedance Sweep, Amplitude Response Sweep, and Sine Wave Sweep; Speech Interference Level, Monitor Amplifier, Time Code Tool functions, and a Phantom Power Test.
check And many more added capabilities, to professionally enhance your sound work.

Specifications

SP295C SoundPro Contractor Audio Analyzer Specifications
SPL  
Sound Level Meter: True RMS measurement of ambient sound energy levels
Inputs:Microphone and line
Display:Digital and analog with peak hold
Accuracy:±0.3 dB SPL, steady state
Resolution & Range:0.1 dB; 35 - 125 dBA with supplied microphone
Weighting networks:ANSI Type 1
 A, B, and C-weighting, Flat, 1 and 1/3 octave filters
Averaging:ANSI Type 1
 Slow (1000 mS exponential decay, time-averaged)
 Fast (125 mS exponential decay, time-averaged)
 Impulse (35 mS exponential decay)
 Peak
 LEQ (10 Sec. 1, 5, 10, or 15 min. 1, 8, or 24 hour or manual)
  
Sound Study Graph: Graphically displays SPL level over a period of time
Inputs:Microphone and line
Averaging:Peak or average
Weighting:ANSI Type 1: A, B, and C-weighting, Flat, 1 and 1/3 octave filters
Time Range:1, 5, 10, and 15 min., 1, 2, 8, and 24 hours
Resolution:Time range divided into 120 equal time segments
Range:35-125 dBA with supplied microphone in 2 selectable ranges
  
ACOUSTICS  
Real-Time Analyzer: Uses ANSI Class 1 octave-band or 1/3 octave-band filters to show relative sound levels by frequency band
Inputs:Microphone and line
Band Filters:Selectable 1 or 1/3 octave
Filter Accuracy:± 0.20 dBu at band center frequency
Frequency Range:Full (20 Hz to 20 kHz) or Low (10 Hx to 332 Hz)
Averaging:

Exponential Decay (1, 3, 6, 10, 30, 60 sec.), Equal-weighted Time (Avg), and Peak Hold
Display:Graphic, digital SPL, digital SPL of band selected by cursor
Range & Resolution:

17 or 35 dB window (0.5 dB/pixel or 1.0/pixel) within a 25 to 170 dB range, adjustable in 5 dB steps and 2 input ranges
Level Accuracy:± 1.5 dB with supplied microphone
Weighting:Flat, A-weighted, C-weighted, Cinema X (ANSI PH22.202M-1984)
  
FFT Analyzer: Plots sound energy levels vs. octave band filtered spectrum
Inputs:Microphone and line
Band Filters:Full octave, 1/3 octave, 1/6 octave, 1/12 octave
Filter Accuracy:± 0.20 dBu at band center frequency
Averaging:

Exponential Decay (1, 3, 6, 10, 30, 60 sec.), Equal-weighted Time (Avg), and Peak Hold
Display:Graphic, digital SPL, digital SPL of band selected by cursor
Range & Resolution:

17 or 35 dB window (0.5 dB/pixel or 1.0/pixel) within a 25 to 170 dB range, adjustable in 5 dB steps and 2 input ranges
Level Accuracy:± 1.5 dB with supplied microphone
Freq. discrimination:± 1%
Weighting:Flat, A-weighted, C-weighted, Cinema X (ANSI PH22.202M-1984)
  
Energy Time Graph: Real time plot of impulse sound decay energy vs. time or sound propagation distance
Inputs:Microphone and line
Graph y-axis unit:ms (milliseconds), ft (feet), m (meters)
Maximum time:7680 msec.
Maximum distance:8678 ft, 2641 m
Display:


Graphical display in real-time or freeze, measuring cursor displays time/distance and dB level, delay time to initial pulse, RT0 marker RT10 — RT60 reverberation times using cursors
Display Accuracy:± 1 pixel
Weighting:ANSI A, B, C, octave, and 1/3 octave-band
  
Reverb Decay Time: Measures reverberation decay time and RT60 using pink noise. When a 60 dB dynamic range is not available, RT60 is linearly extrapolated from available dynamic range.
Weighting:A-Weighted, B-Weighted, C-Weighted, Flat, 1 and 1/3 octave band
Range:5 msec to 14.5 seconds, RT60 time to 11 sec.
Ambient Noise:Ambient noise level must be at least 26 dB ower than test signal
Accuracy:± 2% full signal
Resolution:10 msec.
RT60 Time:Extrapolated from Decay Time measurement
  
Noise Criteria: Implements ANSI S12.2-1995 for comparison of background noise level in nine octave bands to standard noise criterion curves
Inputs:Microphone and line
Displays:

NC curve, limiting band, SPL of selected octave band, Speech Interference Level
  
TECHBENCH Level Meter/Frequency Counter
Level Meters: Display types are digital left and right line input levels. Analog bar graph and digital left and right line input VU levels. Peak Program Material line input levels.
Inputs:Line inputs.
Reference Level:-30 to +20 dBu (VU/PPM meter)
Range:-95 dBu to +40 dBu, auto or manual range
Units:


dBu (0 dB referenced to 0.775 Vrms), v (0 dB referenced to 1.00 Vrms), Vave (average voltage), Vrms (true RMS voltage calculation), Vp-p (true peak-to-peak algorithm)
Accuracy:± 0.5 dB, 20 Hz to 20 kHz, +40 dBu to -85 dBu
  
Frequency Counter:
Inputs:Line inputs.
Display:L & R displayed independently
Range:16 Hz to 50 kHz
Accuracy:± 1 Hz mixed font
  
  
Signal Generator: Sine wave, square wave, white noise, pink noise (full, 1 or 1/3 octave band limited), Polarity waveform (square wave top and sine wave bottom or signal tracing)
Distortion:<0.1% sine wave output
Output Frequency Range:Sine wave 1 Hz to 22 kHz, square waves 1 Hz to 1.6 kHz in 1 Hz, 1/3 octave or 1 octave steps
Output Level:Sine wave, -78 dBu to +17 dBu
 Square wave, -78 dBu to +17 dBu
 White noise, -78 dBu to +2 dBu
 Pink noise, -78 dBu to 0 dBu
Level Accuracy:± 0.05 dBu @1000 Hz, ± 0.10 dBu 16 Hz to 20 kHz
Filter Accuracy:Pink noise filters <0.05 dB, 20 Hz to 19 kHz, <1 dB at 20 kHz
Resolution:Fine: 0.05 dB from -9.95 to +9.95, 0.1 dB all others
 Coarse: 1.5 dB
Display:

Signal type, frequency, level set, output jack, level measurement units, actual signal level at output (compensated for loading)
Impedance Meter:

Measures impedance of external device at any frequency from 20 Hz to 20 kHz, in 1/3 octave steps.
Impedance Range:1 ohm to 8000 ohms, 20 Hz to 20 kHz
Impedance Display:

Test frequency, impedance, equivalent Wattage for 25V, 50V, 70V, or 100V at selected frequency
Impedance2 ohms to 50 ohms: ± 2%, 50 Hz - 16 kHz;
Accuracy:1 ohms to 8000 ohms: ± 10%, 20 Hz - 20 kHz;
  
Sweeps  
Sine wave sweep signal: Smooth sweep between two selected frequencies over selected 10 to 99 seconds time duration.
Amplitude sweep signal: Plots average level in each 1/3 or 1/12 octave band within selected sine wave sweep band.
Impedance sweep signal: Plots average impedance in each 1/3 or 1/12 octave band within selected sine wave sweep band.
Frequency Range:20 Hz to 20 kHz
Impedance Range:20 ohms to 8000 ohms
Display:Impedance & Amplitude - graphic, Sine wave - digital
Resolution:1/3 octave - 30 points, 1/12 octave - 120 points
Accuracy:± 0.5 dB or 1 pixel mixed fonts
  
Distortion Meter: Compares level of harmonics and noise in input signal to the applied fundamental test frequency.
Inputs:Microphone and line
Display:Digital and log scale bar graph
Display Range:0.02% to 50 % THD+N
Accuracy:± 5%
Test Frequencies:63 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz
  
Signal-to-Noise Ratio: Samples the device's full-scale signal output and its noise floor and computes the device's S/N ratio.
Inputs:Microphone and line
Display:Simultaneous display of left and right channel
Range:120 dB; minimum noise level -80 dBu
 maximum signal level +40 dBu
  
TESTS  
Auto HT Tests: Controls DAG5161 Digital Audio Generator for automated calibration procedures
Tests:


Speaker Level Balance, Speaker Polarity, Speaker Time Delay, Reverb Decay, Early Reflections, Ambient Noise, LFE Frequency Response, System Frequency Response
  
Auto Time Delay: Uses test signal from DAG5161 for time delay calibration
Tests:Time Delay Speaker Calibration
  
Polarity Tests: Uses DSP analysis to determine the polarity of the applied test pulse vs. the signal picked up by mic or applied to the line input
Tests:Speaker, Mic, or Equipment (audio signal chain polarity)
Range:Speaker test: 0 to 500 ft, speaker to SoundPro
  
Cable Test: Applies digital wiremap test to check for opens, shorts, crosses, and analog transmission test to compare transmission loss at 1 kHz and 20 kHz
Connector Types:RCA, XLR, 1/4" balanced and unbalanced, XLR to 1/4"
Display:Graphical wiremap, attenuation loss
  
UTILITIES  
Audio Scope:  
Sample Rate:48 kHz
Displays:mV vs. time (line in), mPa vs. time (mic in), or X-Y phase dislay
Display Amplitude:15.6 - 1000 mV/div (line in), 7.8 - 500 mPa/div (mic in)
Accuracy:± one pixel of display, 20 Hz to 22 kHz
  
Monitor Amplifier:  
Frequency response:Signal sampled at 48 kHz 16-bit
Amplification:

Line input: variable 0-22 dB gain with selectable 40dB amp or 40 dB pad, 60 dB gain maximum
 Mic input: variable 0-22 dB gain
Load impedance:32 ohms minimum
Inputs:Microphone and stereo line
Outputs:

Summed into mono, line outputs (XLR, 1/4", RCA phono jack), built-in speaker, headphone jack.
Output Level:Variable from -79 to 0 dB
  
Phantom Power Test: Measures DC voltage on XLR "+" and "-" pins (pins 2 & 3)
Accuracy:± 00.2 volts
  
GENERAL  
Display:64 X 128 pixel super-twist LCD, w/LED backlight
Size:10 3/8" x 6" x 3 3/4" (HWD)
Weight:3 lbs. 5 oz. (1502 g.)
Battery:6 volt rechargeable lead-acid cell provides 2-4 hours of service
Battery Life Display:Accurate to ± 0.02 Vdc
AC Adapter/Charger:6 V @ 800 mZ
Non-Volatile Memory:40 graph data storage locations
  
  
phone 1.800.736.2673International 1.605.339.0100
  

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