Portable Audiometer Calibration System

For Certification and Testing of Audiometers and Sound Booths | Model AudCal

AudCal portable audiometer calibration systemThe SoundAdvisor™ Audiometer Calibration System AudCal is a field-ready solution for fast, accurate, and comprehensive audiometer calibration, compliant with ANSI S3.6 and IEC 60645-1 standards. The system combines the precision of the SoundAdvisor Model 831C Sound Level Meter with the versatility and accessibility of G4 LD Utility Software, enabling seamless operation from a tablet without the need for a PC. Artificial ear couplers and mastoids simplify interfacing with a wide variety of audiometer transducers, ensuring consistent and repeatable measurements in any environment.

Functioning as a complete audiometer calibration kit, AudCal integrates a precision sound level meter, artificial ear couplers, and automated software for fast audiometer verification and reporting. Users can access the meter on a PC or mobile device app to set up and run the full suite of tests, including frequency response, hearing level, FM, and pulse, quickly and accurately. Narrowband FFT and real-time 1/3-octave analysis make advanced measurements such as total harmonic distortion (THD) and ambient noise assessment simple and reliable, all while meeting ANSI and IEC calibration requirements.

After completing the test suite, generate detailed test reports and calibration certificates that document pass/fail results and all measurement parameters. Reports can be exported as PDFs for printing, sharing, or long-term archiving, providing a fully traceable record of audiometer performance in compliance with international standards.

 

Portable Audiometer Calibration Equipment: Test for These Functions

  • Signal distortion
  • Frequency
  • Hearing level
  • Linearity
  • Pulsed signals
  • Speech signals
  • Frequency modulation (FM)
  • Narrowband noise level
  • Broadband noise level
  • Sound booth noise levels
  • Cross-talk and on/off ratio
AudCal Headphone Test
  • For All Your Transducers – test virtually every device, including supra-aural & circumaural headsets, bone vibrators, insert earphones, speakers, and sound booths
  • Couplers to Simplify – artificial ear couplers and accessories including AEC201-A “318” ear simulator, AEC100 “NBS 9/A” coupler, AMC493C artificial mastoid, and AEC304 occluded ear simulator
  • Audiometric Booth Noise Testing – audiometric booth ambient noise with real-time 1/3 octave analysis and fast pass/fail results
  • Store and Recall Tests – the AudCal system offers comprehensive search capabilities of previous tests

Simplify your testing while collecting, analyzing, and reporting your data via the G4 LD Software and/or the LD Atlas app on your tablet or PC:

  • Intuitive Software – G4 LD Software leads you through each step with automatic detection of signals using four different standards, including ANSI S3.6 (2010) and IEC 60645 (2017)
  • Mobile Connectivity – set up, control, and run your test from a mobile device using the LD Atlas app available for both iOS and Android
  • Automatic Corrections – software corrects for reference equivalent threshold for sound pressure levels (RETSPL) for microphones and couplers, as well as other response adjustments
  • Real-time Adjustments – perform level and frequency adjustments during audiometer tests
  • Reports are Easy – print, email, share, or store reports and certificates for your client or your archives

Firmware, Software, & Apps

AudCal Software on iPad

Bringing You an Audiometric Analyzer

With real-time fractional-octave filters, FM and pulse capabilities, and powerful FFT and narrowband analysis, including total harmonic distortion, 831C-AUD creates a fully functional audiometer measurement system.

 

User-Friendly Software

G4 LD Software allows you to set up customers and their equipment, run a suite of tests, and generate reports. The software is smart – when you start a new test at an existing location, the software will configure your setup to match what you’ve done before.

Each test displays real-time results on screen, with measured data and standards-defined limits. Retest any failed frequency, level, or function individually during testing. Results are used to generate reports that can be customized with company logo and technician signatures.

Calibration Reporting and Certification

After completing the full suite of tests, the AudCal portable audiometer calibration system automatically generates detailed calibration reports and certificates, providing a complete record of audiometer performance. Each report documents pass/fail results, measured parameters, and compliance with ANSI S3.6 and IEC 60645-1 standards, ensuring that your calibration process meets international requirements for clinical and occupational audiometry.

You can generate a report with all data exactly as it appears on the test. Upload a company logo to appear on the report, and create an electronic signature that automatically populates the certificate’s signature line. This makes digital sharing immediate and seamless, while maintaining professional and traceable documentation.

Reports can be exported as PDFs, printed, or stored for long-term traceability. This automated reporting and certification workflow streamlines the calibration process, reduces human error, and provides a clear audit trail for regulatory and quality assurance purposes. Combined with its portable hardware and software interface, the AudCal system functions as a complete audiometer calibration kit and field-ready verification system, ideal for laboratories, clinics, and on-site hearing conservation programs.

Accessible LD Atlas App

LD Atlas IconDownload the latest iOS and Android versions of the Larson Davis LD Atlas app easily online. Connect your device to the 831C WiFi, open the app, then take control of the test environment. See live data, add/edit customers, and progress through the entire test suite. Through your app, you can generate reports/certificates, sign them with the touch-screen, and save them to your phone or email the PDF.

AudCal Software on App Store  AudCal Software on Google Play

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