Portable audiometer calibration system Larson Davis AudCal

Portable audiometer calibration system Larson Davis AudCal is a field-ready solution for fast, comprehensive audiometer calibration.

I. Specifications of Portable noise calibration system Larson Davis AudCal

PORTABLE, APP-CONTROLLED CALIBRATION

Portable audiometer calibration system Larson Davis AudCal combines the power and versatility of the SoundAdvisor Model 831C Sound Level Meter with the accessibility and functionality of the G4 LD Utility Software.

AudCal works seamlessly with a tablet for both testing and data collection–no PC is required. Artificial ear couplers and mastoids are available to simplify the challenge of interfacing with a wide variety of audiometer transducers.

AudCal creates a complete, portable audiometer test and calibration solution. Access the meter on a PC or through the app on your mobile device to setup and run the full suite of tests with ease. Measurement capabilities include frequency, hearing level, FM, and pulse. Narrowband FFT and real time 1/3 octave analysis make measurements such as total harmonic distortion (THD) and ambient noise easy and accurate.

After completing the test suite, generate a test report and certificate that details the pass/fail, and parameters of each test. Test reports can be exported as a PDF that can be printed, shared, and saved.

Larson Davis AudCal 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.

TYPICAL APPLICATIONS

• Audiometer calibration
• Booth qualification for ambient noise
• Speaker testing.

Portable audiometer calibration system Larson Davis AudCal | MULTI-FUNCTIONAL SYSTEM

• 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
• Qualify Booths – 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.

SIMPLIFYING YOUR TESTING

• When you need to test and measure an audiometer’s performance to ensure accurate test results, Larson Davis is ready to support you with a fully inclusive Audiometer Calibration System. AudCal Systems deliver a complete package of hardware, firmware, and software designed to streamline your testing.
• Packaged in a rugged case as a turnkey solution, AudCal Systems eliminate setup time by allowing audiometer tests to be performed quickly and easily right in the box. Whether you are performing a typical audiometric test, a booth qualification for ambient noise, or a speaker test, Larson Davis is here to simplify your measurement challenges.

USER FRIENDLY SOFTWARE

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

• 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)
• Store and Recall Tests – System offers comprehensive search capabilities of previous tests
• Reports are Easy – print, email, share, or store reports and certificates for your client or your archives.

ACCESSIBLE APP

• Mobile Connectivity – setup, control, and run your tests using the LD Atlas app.

• iOS and Android – download the latest version of the app and connect your device to 831C WiFi to take control

Download 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 to your phone or email the PDF.

• Control the Test Environment - See live data, add/edit customers, progress through the full test suite, and generate reports/certificates.

II. Acoustic Couplers & Ear simulators for Portable audiometer calibration system Larson Davis AudCal

SUPRA-AURAL & CIRCUMAURAL EARPHONES

EAR SIMULATOR MODEL AEC201-A

• Used at frequencies up to 16000 Hz
• Meets IEC 60318-1:2009 Edition 2 and ANSI S3.7 section 5.4 requirements
• Compatible with earphones like TDH 39, TDH 49, TDH 50, HDA200 and Koss HV/1A
• Supplied with 377B13 microphone and Type 1 adapter plate (Type 2 available)
• Packaged with weights and accessories in a weather-tight case.

INSERT EARPHONES

OCCLUDED EAR SIMULATOR MODEL AEC304

• Designed to test insert earphones
• Includes ½ inch 12.5 mV/Pa matched microphone
• Meets IEC 60318-4 and IEC 60711:1981 requirements
• Often referred to as a Series 711 Coupler.

INSERT HEARING AIDS AND EARPHONES

COUPLER MODELS AEC202 & AEC203

• Use AEC202 for ½ inch microphones
• Used for 1 inch microphones
• Both units meet IEC 60126 and IEC 60318‑5 requirements
• AEC202 meets ANSI S3.7 2cc and AEC203 meets ANSI S3.7.

SUPRA-AURAL EARPHONES

NBS 9 A 6CC COUPLER MODEL AEC100

• Designed for 1–inch microphones (not included) and the calibration testing of supra-aural earphones
• Delivers accurate and repeatable measurements up to 8 kHz
• Used for production testing where correlation between the coupler and real ear response is not a requisite.

BONE VIBRATOR TESTS

ARTIFICIAL MASTOID MODEL AMC439C

• The AMC493C artificial mastoid is a precision mechanical coupler used to calibrate bone conduction hearing aids and audiometer bone vibrators. The AMC493C is cost effective and simple to use. Its patented design converts the vibrator force output to an acoustic signal measured with the system’s sound level meter. It is used with the AEC100 coupler or AEC201-A Ear Simulator to perform bone vibrator tests.

Technical specifications of Portable audiometer calibration system Larson Davis AudCal