Technical Specifications
Complete technical specifications for RTAAC Suite version 1.0.2. These specifications apply when using properly calibrated measurement equipment.
RTAAC SuiteProfessional Audio Measurement & Analysis
v1.0.2December 2024
System Requirements
Operating SystemmacOS 11.5 (Big Sur) or later
ProcessorApple Silicon (M1/M2/M3/M4) or Intel
RAM4 GB minimum (8 GB recommended)
Storage100 MB available space
AudioBuilt-in or external Core Audio device
InternetRequired for license activation
Measurement Accuracy
Level Accuracy±0.1 dB (calibrated system)
Frequency Response20 Hz - 20 kHz
Dynamic Range> 96 dB
A-WeightingPer IEC 61672-1 Class 2
C-WeightingPer IEC 61672-1 Class 2
Flat (Z) Weighting±0.5 dB, 20 Hz - 20 kHz
Audio Specifications
Sample Rates44.1, 48, 88.2, 96 kHz
Bit Depths16, 24, 32-bit float
Maximum Channels16 simultaneous inputs
Latency< 10 ms (device dependent)
Buffer Sizes256, 512, 1024, 2048, 4096 samples
Level Meter
Frequency WeightingA, C, Flat (Z/Linear)
Time WeightingFast (125ms), Slow (1s), Impulse (35ms)
Peak DetectionTrue peak with hold
StatisticsLeq, Lmax, Lmin, L10, L50, L90
Logging Intervals0.1s, 1s, 10s
Maximum Log DurationUp to 2 weeks (10s interval)
Spectrum Analyzer (RTA)
Octave Bands10 bands (31.5 Hz - 16 kHz)
1/3 Octave Bands31 bands (20 Hz - 20 kHz)
Reference CurvesNC, RNC, NR
FFT SizeOptimized per band
Update RateReal-time display
Noise Dosimeter
Criterion Levels80, 85, 90 dB
Exchange Rates3 dB, 4 dB, 5 dB
ThresholdConfigurable
MeasurementsDose %, TWA, Leq, Lmax, Lpeak
StandardsOSHA, NIOSH, ACGIH
Signal Generator
Frequency Range20 Hz - 20,000 Hz
WaveformsSine, Square, Triangle, Sawtooth
Noise TypesWhite, Pink
Sweep TypesLinear, Logarithmic
Dual ToneTwo frequencies with phase control
Data Recorder
Channels1 - 16
File FormatsWAV, AIF, CAF
Sample Rates44.1, 48, 88.2, 96 kHz
Bit Depths16, 24, 32-bit float
Calibration DataOptional embedding
Test Wizard
Total Tests16 automated tests
Test Categories7 categories
Report FormatPDF with white-label branding
Test Duration~5 minutes (full suite)
ResultsPass, Warning, Fail, Skipped
File Formats
Audio RecordingWAV, AIF, CAF
ReportsPDF
ProjectsNative RTAAC format
CalibrationEmbedded in recordings (optional)
Supported Standards
IEC 61672-1Sound Level Meters
ANSI S1.4Sound Level Meter Specifications
ANSI S1.43Integrating-Averaging Sound Level Meters
OSHA 29 CFR 1910.95Occupational Noise Exposure
NIOSH RELRecommended Exposure Limits
Octave Band Center Frequencies
31.5 Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, 16 kHz
1/3 Octave Band Center Frequencies
20, 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k, 20k Hz