Refined Audiometrics Laboratory

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System Feature Comparison

Feature System 5000 System 2000 System 1000
Processing Sample Rate 96 KHz 44.1/48 KHz 48 KHz
Sampling Precision 24-bits 24-bits 24-bits
Internal Processing 64-bits 64-bits 24-bits
Output Audio Precision1 >22-bits >20-bits >18-bits
Number of Bark bands per Channel 100 100 50
Bark band spacing 0.25 Bark 0.25 Bark 0.5 Bark
Temporal Oversampling 8x 8x 4x
Harmonic Distortion2 < -130 dBFS < -96 dBFS < -80 dBFS
Correction Update Rate 1.5 KHz 1.5 KHz 750 Hz
Phase-Linear Corrections Yes Yes Yes
DSP headroom conserving de-emphasis Yes Yes Yes
Symmetric hearing Yes Yes Yes
Asymmetric hearing Yes Yes Yes
Audiology Setup 12/24 bands 12/24 bands 12/24 bands
Proprietary V-Tuning Yes Yes Yes
Professional Installation Yes Optional No
Do-it-yourself Installation No Optional Yes
Outboard re-emphasis EQ Yes Optional (recommended) Optional (recommended)
Audio Levels +4 dBu +4 dBu/-10 dBV -10 dBV
Audio Processor Muse Receptor Muse Receptor Soundart Chameleon
User Retunable Yes Yes Yes
System User Interface Front Panel/Computer GUI Front Panel/Computer GUI Front Panel
Headphone Crossover No - available separately No - available separately Yes
Phase Pre-emphasis and 2-band compressive psychoacoustic processing No - available separately No - available separately Yes
Standalone operation Yes Yes Yes
Computer Setup GUI Yes Yes No
Audio Quality Highest Higher High
System Cost3 Very Expensive Moderately Expensive Least Expensive
Number of stored presets Unlimited Unlimited 99
Mute/Bypass Yes Yes Yes
Volume Control Yes Yes Yes
Throughput Latency4 18 ms 18 ms 8.3 ms

1Output numeric precision based on an analysis of algorithm induced numeric noise.

2Harmonic distortion products measured using a 0 dB K-14 RMS-Wide sinewave (= -14 dBFS peak), with corrective settings equivalent to 60 dB threshold elevation at 6 KHz.

3Total system cost depends on total hardware cost, integration costs, shipping and import duties at your location, and quality of algorithms furnished.

4Total throughput delay includes software processing delay plus hardware input-to-output delay.