SPEAG has released DASY8 Module HAC2019. The new module provides a guided workflow that demonstrates the compliance of any wireless device with the latest Hearing Aid Compatibility standard ANSI C63.19-2019 and the latest Federal Communication Commission requirements. Module HAC2019 is also available for DASY6.
Demonstrating Hearing Aid Compatibility (HAC) is important for warranting the electromagnetic and operational compatibility of hearing aids and wireless devices. In February 2021, the Federal Communication Commission (FCC) announced the adoption of the 2019 edition of ANSI C63.19, the “American National Standard Methods of Measurement Compatibility Between Wireless Communications Devices and Hearing Aids,” which became effective June 4, 2021. The FCC is giving manufacturers a two-year transition period (i.e., until June 4, 2023) to adopt the requirements of the updated ANSI C63.19-2011 standard. It has also extended the volume control deadline to match this transition period. Beginning June 5, 2023, only test reports that comply with ANSI C63.2019 will be accepted.
Following SPEAG’s tradition of staying ahead of requirements, we started early with the development of Module HAC2019 for DASY8/6 users. This is a completely new software solution based on SPEAG’s latest graphical user interface technology that guides users through the compliance workflow by using specific Jupyter Notebooks. The DASY8/6 system is interfaced via a dedicated application programming interface.
During development, we have been meticulous in ensuring that we reuse as much as possible of the previous HAC hardware in order to save resources and costs for our customers. The only element that has been replaced is the audio interference analyzer (AIA), which has been superseded by the modulation and audio interference analyzer (MAIA) to evaluate the modulation interference factor (MIF).
DASY8/6 Module HAC2019 consists of four Jupyter Notebooks that represent the different steps of the compliance workflow:
MIF measurements with MAIA
Simplified verification of the radiofrequency (RF) test setup using RF emission calibration dipoles
Evaluation of the wireless device RF interference potential by determining the RF audio interference level (RFail)
Measurement of the baseband (audio frequency) magnetic T-Coil (Tele-Coil) signal from a wireless device.
The workflow can easily be implemented, as shown in this video:
MIF Measurements with MAIA
The MAIA allows verification of the MIF values used to calculate the RFail. The MAIA can be operated over the air interface using the built-in ultra-broadband planar log spiral antenna (supported frequency range: 698–6000 MHz) or in conducted mode using the coaxial SMA 50 Ω connector (supported frequency range: 300–6000 MHz).
Figure 1: MIF Measurement of a 5G new radio frequency range 1 frequency division duplex signal
RF Test Setup Verification
A dedicated Notebook has been developed for verifying the RF interference measurement setup. The user can select and optimize the measurement configuration in a list of predefined templates. Peak values are automatically detected for easy comparison with the measurement targets.
Figure 2: Interpolated E-field Distribution of a CD2450V3 Dipole
RF Audio Interface Level Determination
In Module HAC2019, the RFail is assessed using the (preferred) indirect test procedure described in ANSI C63.19-2019. A 50x50 mm region centered on the speaker location is scanned and the root mean square (RMS) electric field values are recorded at each point. Once the scan is completed, the RFail is obtained by adding the MIF value to the average steady RMS field strength averaged over the measurement area.
Figure 3: Interpolated E-field distribution of a wireless device after MIF scaling
Baseband Magnetic T-Coil Signal
The Jupyter Notebook developed for baseband magnetic T-Coil testing guides the users through the measurement steps described in the ANSI C63.19-2019:
Validation of the measurement equipment using a telephone magnetic field simulator (TMFS) or a Helmholtz coil
Determination of the wireless device drive levels for each audio signal
Measurement of the desired magnetic field with a voice-like signal (desired audio band magnetic (ABM) signal)
Measurement of the frequency response at the maximum location of the desired ABM signal
Measurement of the undesired broadband audio magnetic signal (undesired ABM signal)
The T-Coil coupling qualifying strengths, including determination of the primary and secondary groups, as well the magnetic field frequency response are computed by the post-processor and are available for visualization and reporting.
Figure 4: Evaluation of Primary and Secondary Groups according to ANSI C63.19-2019
The software installer will be available on November 15th.
For further information, please contact us at firstname.lastname@example.org or any of our sales channels.
Schmid & Partner Engineering AG (SPEAG) sponsored the awards at the 2nd International Workshop on Photonics Applied to Electromagnetic Measurements (PEM2017), hosted by the IT'IS Foundation and held at the Volkshaus in Zurich, Switzerland on October 5 – 6, 2017. The PEM workshops are devoted to the research, development, and application of photonics in electromagnetic measurements and closely related fields, such as fiber-optic signal transmission, photonic signal processing, display integrated antennas, and photonic device technology.
Schmid & Partner Engineering AG (SPEAG) and ZMT Zurich MedTech AG (ZMT) are pleased to announce their annual hardware and software workshop, to be held in Seoul, South Korea, on 27 October 2017. Our in-house experts, together with our partners from Dymstec, will demonstrate SPEAG's and ZMT's latest innovations and product updates and provide information about standards trends and our roadmap for addressing emerging industry needs.
A DPAS (Draft Publicly Available Specification) of Part 3 of the IEC standard 62209, which will allow the use of standardized fixed sensor array systems in addition to robot-based scanning systems, has been submitted for IEC approval.
SPEAG, ZMT Zurich MedTech AG and their distribution partner in China and Taiwan, AUDEN Technology Corporation, hosted the popular Annual Hardware & Software Workshop Series in Beijing, Shanghai and Shenzhen (China), as well as Taipei (Taiwan) in June 2017. Overall, more than 200 participants from industry and academia explored SPEAG's and ZMT’s latest innovations and product updates, and discovered how SPEAG’s and ZMT’s solutions and technology roadmap adds value to their current R&D operations while anticipating future technological advances in 2017 and beyond.
SPEAG is happy to announce the release of cDASY6 V6.4. With V6.4, the greatly reduced measurement time and the testing automatization of our DASY6 system is now accepted by all regulators. The release also entails all necessary features to meet the upcoming unified IEC 62209-U standard and is capable of testing all IoT devices.
SPEAG is proud to release Version 16.4 of its SEMCAD X Matterhorn simulation platform, offering major performance boosts from subgridding to high performance computing (HPC) and Cloud Computing! Moreover, all toolsets, including our powerful 5G simulation package, have been refined to further automate and streamline the application flows in areas of equipment optimization, 5G/wireless technology and optimization of in-/on-body communication devices - making your simulations once again faster and more effective.