ヘッドアコースティクスジャパン List of Products and Services

HD Voice Logo Minimum Requirements for Mobile Devices and Headsets The GSMA specifies testing methods to evaluate the minimum performance requirements that manufacturers of mobile devices and headsets must meet in order to use the GSMA trademarked HD Voice logo. HEAD acoustics has commercialized all voice quality measurements required by GSMA HD Voice Annex H (refer to the "Application" below) as the automated test suite GSMA HD Voice within the call quality analysis system ACQUA. With GSMA HD Voice, manufacturers can verify the compliance of their mobile devices and headsets with the necessary requirements to use the HD Voice logo.

• Other measurement, recording and measuring instruments

The GSMA specifies the testing methods to evaluate the minimum performance requirements that mobile device and headset manufacturers must meet to use the GSMA trademarked HD Voice+ logo. HEAD acoustics has commercialized all the voice quality measurements required by GSMA HD Voice+ Annex H (hereinafter referred to as "the Application") as the automated test suite GSMA HD Voice+ within the call quality analysis system ACQUA. With GSMA HD Voice+, manufacturers can verify the compliance of their mobile devices and headsets with the necessary requirements to use the HD Voice+ logo.

• Other measurement, recording and measuring instruments

Driving Simulator Interior Noise Simulation PreSense DRIVE is an interactive interior noise simulation designed to enhance immersion with real environmental sounds using third-party vehicle simulators. It employs advanced algorithms based on PreSense NVH simulator technology. With immersive acoustic simulation, drivers of the simulated vehicles experience a realistic simulation as if they were driving an actual vehicle. PreSense DRIVE can be integrated into any driving simulator using API, CAN FD BUS systems, or IPG CarMaker.

• Other measurement, recording and measuring instruments

MDAQS is an AI-based method for evaluating audio quality using tools. It assesses the listening quality during acoustic playback in terms of timbre, distortion, and immersion, outputting the results as MOS values, enabling rapid evaluation and comparison. HEAD acoustics developed MDAQS (Multidimensional Audio Quality Score) based on specially designed listening tests tailored to specific needs. Algorithms trained on test results determine the audio quality of any playback system or device, such as speakers, headphones, headsets, in-car audio systems, mobile speakers, and smart speakers, outputting MOS values. This allows for quick and convenient evaluation of playback quality during and after development.

• Other measurement, recording and measuring instruments

The ACQUA standard specification GB/T 45314 eCall has been developed and commercialized to implement the acoustic performance compliance verification tests and requirements for narrowband and wideband voice transmission based on GB/T 45314-2025 (Clause 5). All voice signals used in acoustic measurements are in Chinese. The ACQUA standard specification consists of a single ACQUA project, which includes the measurement and analysis of eCall systems capable of processing narrowband and wideband signals. This project has implemented testing and result analysis tools based on the requirements of GB/T 45314-2025 (Clause 5).

• Other measurement, recording and measuring instruments

Virtual point conversion is an optional extension feature of the ArtemiS SUITE for TPA projects. This allows for the creation of virtual measurement points on components and assemblies, enabling the calculation of force, moment, rotational and translational acceleration even in locations where sensors, hammers, or shakers cannot be used. In hybrid models, using virtual points allows for the connection of numerical simulation models with actual measurement data. The virtual point conversion includes an intuitive user interface that guides users step-by-step through the entire process, and it also provides multiple quality assurance steps, making it operable without advanced expertise.

• Other measurement, recording and measuring instruments

The test specifications defined by ETSI TS 103 334 and ETSI TS 103 607 have been commercialized as the ACQUA standard specifications TS 103 334/607. This ACQUA standard specification is a comprehensive test for manufacturers to evaluate the signal and audio quality of wireless wearable (watch-type) terminals. This standard supports multiple access networks for connecting to wireless devices such as packet/circuit-switched mobile networks and Bluetooth wireless technology.

• Other electronic measuring instruments

labCORE is a modular multi-channel hardware platform for voice and audio quality. It is designed with a wide range of high-performance analog and digital interface options, considering versatility and future-proofing. labCORE is a cutting-edge all-in-one solution for accurately and efficiently testing voice and audio quality. For measuring digital and analog calls and audio devices, transmission systems, evaluating headsets and headphones, binaural equalization, multiple dummy head setups, VoIP reference gateways, and more, labCORE flexibly accommodates various applications with its modular configuration and expansion options in a single device.

• Other measurement, recording and measuring instruments

In-vehicle hands-free calling faces numerous acoustic challenges such as low S/N ratio, echo, double talk, and RF transmission interference, making it a difficult task to achieve good call quality. The International Telecommunication Union (ITU) specifies ITU-T Recommendation P.1100, which includes tests and requirements for the voice quality of wideband in-vehicle hands-free calls. ITU-T Recommendation P.1100 outlines testing methods for essential elements of call quality, including loudness rating, transfer function, idle channel noise in both the speaking and receiving directions, out-of-band signal suppression, echo attenuation, and minimum activation levels. It includes tests for factory-installed hands-free systems, commercially available hands-free car kits, and both wired and wireless in-vehicle headsets.

• Other measurement, recording and measuring instruments

In-vehicle hands-free calling faces numerous acoustic challenges such as low S/N ratio, echo, double talk, and RF transmission interference, making it a difficult task to achieve good call quality. The International Telecommunication Union (ITU) specifies ITU-T Recommendation P.1110, which includes tests and requirements for the voice quality of wideband in-vehicle hands-free calls. ITU-T Recommendation P.1110 outlines testing methods for essential elements of call quality, including loudness rating, transfer function, idle channel noise in both the transmission and reception directions, suppression of out-of-band signals, echo attenuation, and minimum activation levels. It includes tests for factory-installed hands-free systems, commercial hands-free car kits, and both wired and wireless in-vehicle headsets.

• Other measurement, recording and measuring instruments

The European standard EN 50332 specifies the maximum sound pressure levels and input/output voltage measurement methods for headphones, earphones, and headsets related to portable audio devices. Compliance with EN 50332 is essential for distributing these devices in many countries. Therefore, adherence to EN 50332 is important for all manufacturers of consumer mobile electronics. HEAD acoustics has commercialized the testing requirements of EN 50332 as an automated test suite for the call quality analysis system ACQUA.

• Other measurement, recording and measuring instruments

MSA I is a microphone array designed to capture three-dimensional sound scenarios. The microphone array is asymmetrical. It fits the dummy head and stand of the HMS II series. The data recorded with MSA I is played back using the background noise simulation systems: 3PASS lab and 3PASS flex. Equalization is required for background noise simulation using the recording data from MSA I. This equalization procedure includes recording the impulse response and test signals with MSA I. The recorded data of the impulse response and test signals is taken into account for the equalization calculations.

• Other measurement, recording and measuring instruments

labVF6-Iso II is a 6-channel HEADlab input module equipped with the HEADlink 2.0 transmission protocol for connecting voltage sensors and IEPE/ICP sensors. The six high-impedance inputs are electrically isolated from each other and also isolated from the digital HEADlink interface, making it suitable for use in electromagnetically harsh environments.

• Other measurement, recording and measuring instruments

Achieving appropriate voice quality for in-vehicle hands-free calls is a challenging task under difficult acoustic conditions. To ensure good call quality, the ITU-T has published Recommendation ITU-T P.1120 regarding testing and requirements for super wideband and full-band hands-free calls in vehicles. This testing method focuses on key voice quality criteria such as frequency characteristics and loudness ratings in single speaker situations, echo performance, level variations in single speaker and double talk situations, and the transmission quality of background noise. HEAD acoustics has implemented and commercialized all test cases based on the recommendation as the ACQUA standard P.1120. The ACQUA standard P.1120 is used to verify and optimize whether hands-free systems and devices, either OEM or aftermarket, manufactured by car manufacturers and automotive parts suppliers comply with ITU-T Recommendation P.1120.

• Other measurement, recording and measuring instruments

In the event of a car accident, the emergency call system will automatically dial the emergency call center hands-free. To ensure optimal call quality between the car and the response service, the ITU-T specifies a comprehensive testing method for hands-free emergency calls originating from cars in ITU-T Recommendation P.1140. HEAD acoustics has commercialized tests for wideband (WB) calls as the ACQUA standard specification UG P.1140-WB. The ACQUA standard covers the wideband part of ITU-T Recommendation P.1140 (07/2022).

• Other measurement, recording and measuring instruments

In the event of a car accident, the emergency call system will automatically dial the emergency call center hands-free. To ensure optimal call quality between the car and the response service, the ITU-T specifies a comprehensive testing method for hands-free emergency calls initiated from the car in ITU-T Recommendation P.1140. HEAD acoustics has commercialized tests for narrowband (NB) calls as ACQUA standard P.1140-NB. The ACQUA standard encompasses the narrowband part of ITU-T Recommendation P.1140 (07/2022) and refers to UNECE AECS-02-02-Rev.8, which includes ITU-T Recommendation P.1140 (06/2015).

• Other measurement, recording and measuring instruments

HMS II.3 LN HEC is a dummy head that is ideal for low noise measurements in the field of telephony under realistic conditions. It is equipped with pseudo ears, a human-like external ear canal, and a pseudo mouth. It conforms to the shape and acoustic characteristics requirements of ITU-T Recommendation P.57 and ITU-T Recommendation P.58, making it suitable for measurement scenarios in the vicinity of the ear as well as sound fields away from the ear. It can be used for testing transducers and signal processing for handsets, headsets, headphones, hands-free devices, voice-operated devices, hearing protection devices, and more.

• Other measurement, recording and measuring instruments

3PASS reverb is an option for 3PASS lab and 3PASS flex. As an extension of 3PASS lab and 3PASS flex, it simulates the reverberation of a single speaker at the microphone position of the device under test. 3PASS reverb supports measurements compliant with ETSI TS 103 557.

• Other measurement, recording and measuring instruments

Devices and applications equipped with multiple microphones to capture human voices for cars, homes, and offices are becoming more common. To accurately test such systems under realistic conditions, advanced multi-point background noise simulation (MPNS) is required to customize the placement of microphones and speakers. 3PASS flex meets these needs. It supports all necessary steps, including recording background noise scenarios, automatic digital equalization of the playback system, and synchronization between background noise playback and measurement.

• Other measurement, recording and measuring instruments

HMS II.3 is a dummy head equipped with a pseudo-mouse and a right ear simulator. Because HMS II.3 realistically mimics the anatomical structures related to human acoustics, it can also be used for measurements with transducers that are positioned away from the ear, such as hands-free devices.

• Other measurement, recording and measuring instruments

HMS II.3 LN is a dummy head that is ideal for low noise measurements in the field of calls under realistic conditions. It is equipped with pseudo ears and a pseudo mouth. It conforms to the shape and acoustic characteristics requirements of ITU-T Recommendation P.58, making it suitable for measurement scenarios both near and far from the ears. It can be used for testing transducers and signal processing for handsets, headsets, headphones, hands-free devices, voice-operated devices, hearing protection devices, and more.

• Other measurement, recording and measuring instruments

P.381-3 The headset is an ACQUA standard test specification that commercializes the measurement requirements of ITU-T Recommendations P.381/P.382/P.383 regarding headsets. The ACQUA standard provides comprehensive testing for manufacturers to evaluate the sound quality of analog and digital headsets (wired/wireless) in terms of signal and audio. It supports various types of connection methods, including analog (TRRS), digital wired (USB), and digital wireless (Bluetooth technology).

• Time-frequency measurements

P.381-3 The terminal is a productized ACQUA standard that conforms to ITU-T Recommendations P.381 / P.382 / P.383 for measurement methods and requirements of terminals. The ACQUA standard provides comprehensive testing for terminal manufacturers and network operators to evaluate the signal and voice quality of terminals such as mobile phones through analog or digital interfaces (wired/wireless). It supports various connection types, including analog (TRRS), digital wired (USB), and digital wireless (Bluetooth technology).

• Time-frequency measurements

The ACQUA options (ACOPT) come in various types. › ACOPT 01 – Signal editing and other extended applications › ACOPT 19 – Online analysis and other ACQUA implementation features › ACOPT 21/35 – Advanced calculation methods such as 3QUEST › ACOPT 20 – Result display tools such as quality pie charts

• Time-frequency measurements

Prognoise enables the creation of binaural or monaural synthetic sounds (airborne and structure-borne sounds) for one or more listeners based on the transfer functions and excitation signals (time history data measured in actual operating conditions). Individual transfer functions (e.g., mount transfer, apparent mass, acoustic transfer functions) are integrated and assigned to the corresponding input signals. The corresponding time history signals can be identified, analyzed, and made audible for each node in the model.

• Noise Inspection

With the AI-equipped Reference+, determining the optimal reference points for experimental modal analysis can be done rationally and easily. Along with other innovative automated features, it offers excellent flexibility and eliminates the need for complex interactions.

• Other electronic measuring instruments

The labV24 II is a data collection input module of the second generation HEADlab. With the HEADlink 2.0 transmission protocol, this input module achieves double the sampling rate compared to HEADlink 1.0 with the same number of channels. When combined with the labCTRL II.1 controller of the second generation HEADlab, the labV24 II achieves a maximum sampling rate of 204.8 kHz. It can be flexibly adjusted within a range of 10mV to 30V. Overload detection and a maximum voltage withstand of 60V provide a high level of protection against errors in the measurement setup. Sensors are connected via breakout cables to the two D-Sub terminals on the front of the housing.

• Testing Equipment and Devices

The labV8x3-Iso II is characterized by its wide range of applications. The eight inputs for three-axis sensors are electrically isolated from each other and also electrically isolated from the digital HEADlink interface, allowing it to be used in electromagnetically harsh environmental conditions. The input module features a sampling rate that can be flexibly adjusted from 2.048 kHz to a maximum of 204.8 kHz. The labV8x3-Iso II connects to the HEADlab controller. Depending on your needs, it can also be connected to additional controllers, input modules, power supply modules (for independent power), dummy heads, etc., allowing for the construction of large-scale HEADlab systems with hundreds of channels.

• Vibration Testing

HEADlab is a second-generation modular high-quality data collection system that includes controllers, input modules, playback modules, power supply modules (rechargeable batteries), and various other accessories. To accommodate a wide range of applications, various input modules are available. The HEADlab system can be configured with hundreds of channels. The sampling rate supports from 2.048 kHz to 204.8 kHz. The locking mechanism securely fixes the modules together, making them easy to remove as well.

• Other electronic measuring instruments

AQuire V4 is a 4-channel front end designed specifically for the collection of analog measurement data of sound and vibration at the final stage of the manufacturing line (End-of-Line). It can be installed for continuous operation at measurement stations, allowing the connection of up to four analog microphones or accelerometers, pulse sources, and the vehicle's CAN FD BUS system to both analog and digital inputs. It connects via LAN or USB to a PC with the AI-compatible sound and vibration analysis software conTEST installed, which works in complete coordination with AQuire V4. AQuire V4 collects analog measurement data of sound and vibration, while conTEST performs automatic evaluations. conTEST is equipped with a rich set of sound and vibration analysis tools, including psychoacoustic analysis based on human auditory models, enabling it to detect anomalies that can only be identified by human hearing and providing accurate OK/NG judgments.

• Testing Equipment and Devices

conTEST is a modular AI-compatible software specially designed for the final stage of the manufacturing line (End-of-Line). It includes a rich set of sound and vibration analysis methods, featuring psychoacoustic tools based on human auditory models, allowing it to detect anomalies that can only be identified by human hearing and to make accurate OK/NG judgments. Using a standard interface, conTEST can be seamlessly integrated into test benches and production lines. The user interface of conTEST is user-friendly and can be freely customized to meet individual needs. With the push of a button, different profiles can be switched quickly and flexibly. The dedicated front-end AQuire V4, which is fully integrated with conTEST, records analog measurements such as vibration and acoustics and performs automatic evaluations with conTEST.

• Testing Equipment and Devices

Acoustic intensity measurement allows for the identification of acoustic power emitted from the test object in accordance with ISO 9614. A 3D model acoustic intensity map is generated using discrete points/scanning. Instead of constructing a physical grid for discrete point and scan measurements in accordance with ISO 9614, acoustic intensity measurement utilizes Microsoft’s HoloLens 2 augmented reality glasses. The AR glasses can be seamlessly integrated into the procedure, making it easy and quick to perform ISO-compliant measurements. This efficient virtual solution facilitates the necessary acoustic intensity measurements, enabling even inexperienced users to conduct ISO-compliant measurements.

• Noise Inspection

TS 103 640 is a test standard specification database developed for ACQUA based on ETSI TS 103 640. It is ideal for performance testing of headphones, headsets, and earphones with and without active noise cancelers. In addition to basic characteristic evaluations such as audio playback quality, it also includes advanced tests for active and passive noise canceler performance, external audio hear-through clarity, robustness against sound leakage, and more. It also includes internationally standardized voice call quality tests such as 3QUEST, POLQA, and ABLE (LISTENING EFFORT).

• Testing Equipment and Devices

The ACQUA option (ACOPT) allows for the customization of the ACQUA call voice quality measurement analysis system to meet user needs. ACOPT offers various options, including feature enhancements, advanced analysis and calculation methods, and tools for displaying analysis results.

• Other electronic measuring instruments

Second Generation HEADlab Controller with HEADlink 2.0 It forms the core of the HEADlab system, centrally controlling and synchronizing data from the input module and playback module. The HEADlab system can be configured and controlled via labCTRL II.1 from a Windows PC equipped with ArtemiS SUITE Recorder or labSAR system. The second generation HEADlab controller labCTRL II.1 provides extended features for effectively utilizing the HEADlab system. Numerous innovative enhancements have been made. The evolved transmission protocol HEADlink 2.0 achieves double the data rate compared to the conventional protocol and supports 32 bits per sample. The second generation HEADlab modules can achieve a maximum sampling rate of 204.8 kHz.

• Other electronic measuring instruments

The labV12-O4 II is a second-generation all-in-one module from HEADlab for dynamic structural analysis. A compact frontend that integrates all the functionalities of a 4-channel output module for vibration testing and a 12-channel data acquisition module has been newly added to HEAD acoustics' structural analysis portfolio.

• Other electronic measuring instruments

"ACOPT 35" is a product that covers super wideband and full band scenarios, evaluated using methods standardized in ETSI TS 103 281, Model A. 3QUEST (3-stage call voice quality evaluation) has been commercialized to use standardized analytical methods in ACQUA. It evaluates the performance of voice signal processing in call terminals equipped with noise suppression technology under background noise environments. [Main Features] ■ Clear and easy-to-understand result output ■ Automatic calculation ■ Standardized in ETSI TS 103 281, Model A *For more details, please refer to the PDF document or feel free to contact us.

• Voice Recognition Software
• Acoustic Analysis

"SQala Basic" is the core of the modular software "SQala." When creating listening test scenarios and running them as local sessions, the APR 500 is used. You can customize, save, and reuse listening tests according to various scenarios and needs. [Main Features (Partial)] ■ Easy-to-understand and intuitive user interface ■ Quickly create complex listening tests without specialized knowledge ■ Innovative and functional page design ■ Custom design options *For more details, please refer to the PDF materials or feel free to contact us.

• Voice Recognition Software
• Acoustic Analysis

The "HQS-ANC-Car" is a product that helps evaluate in-vehicle active noise cancelling (ANC) systems. It is applicable for testing OEM and aftermarket ANC systems for all types of passenger and commercial vehicles. The evaluation includes general performance of the ANC system, specific noise of the ANC system, and the impact of ANC on listening effort and audio playback. 【Features】 ■ Supports various types of ANC systems ■ Characterization evaluation of ANC systems under any road noise scenario ■ Evaluation of the impact of ANC on voice playback quality and listening effort ■ Evaluation of the impact of ANC on audio playback quality ■ A2B compatibility *For more details, please refer to the PDF document or feel free to contact us.

• Software (middle, driver, security, etc.)

"HQS-Ac2Ac" is a quality standard developed by our company for various voice call system tests. It treats the transmission path between two endpoints as a black box, allowing for general testing and optimization of call quality. Additionally, it enables quick measurements in cases where access to the transmission path is difficult or impossible, as well as end-to-end call quality measurements for the entire system. 【Main Features】 ■ Comprehensive and automated test suite ■ Widely applicable to any voice transmission path regardless of connection type or system configuration ■ Supports both symmetric and asymmetric systems ■ Testing across all common frequency bands ■ Focuses on real-world performance and outputs comprehensive test results *For more details, please refer to the PDF document or feel free to contact us.

• Acoustic Analysis

The "APR 190 Acoustic Engineering Project" is a product that allows for the creation of target sounds based on user needs. It provides processing tools for interactive filtering of recorded data, adding steady-state frequency components, non-steady-state attenuation and amplification, complete replacement of orders, addition of new order trajectories, and removal of instantaneous sound components. The available processing tools are suitable for emphasizing subtle effects within the recorded data. 【Main Features (Partial)】 ■ Interactive editing of recorded data ■ Processing tools ■ Easy workflow through a graphic user interface ■ Simple emphasis on subtle effects in recorded data ■ Snapshot function *For more details, please refer to the PDF materials or feel free to contact us.

• Voice Recognition Software

"HQS-ViBRIDGE" is a voice quality standard developed specifically for the HEAD measurement system HMS II.3 ViBRIDGE. It outputs comprehensive performance test data for in-ear headsets that utilize bone conduction for signal processing. The effects of structural propagation signals on voice quality will be clarified. The test results will assist in comparing in-ear headsets and improving development models. 【Features】 ■ Cutting-edge measurement and analysis for evaluating in-ear headsets that utilize bone conduction for signal processing ■ Various measurement analyses ■ Individual test scenarios for comprehensive performance evaluation of the headsets being tested ■ Complete compatibility with HMS II.3 ViBRIDGE *For more details, please refer to the PDF materials or feel free to contact us.

• Acoustic Analysis

The "labCOMPACT12 II/labCOMPACT24 II" is a second-generation compact multi-channel data acquisition system equipped with 12 or 24 channels for connecting analog sensors and ICP sensors. It can be quickly and easily expanded by adding input modules, other compact systems, and controllers. Each compact system offers a maximum sampling rate of 204.8 kHz. 【Main Features】 ■ Connect up to 12 or 24 analog sensors/ICP sensors ■ Data transfer and control via notebook or PC ■ Control via Recorder in ArtemiS SUITE ■ Direct connection of HEADlab input modules via single link ■ Robust and compact design *For more details, please refer to the PDF materials or feel free to contact us.

• Document and Data Management

"3QUEST (3-fold Quality Evaluation of Speech in Telecommunications)" is a product that has database-ified a standardized method for evaluating the quality of call audio for ACQUA. It allows for the evaluation of voice signal processing from call terminals equipped with noise suppression technology in background noise environments. It implements the standard test specifications of ETSI EG 202 396-3/ETSI TS 103 106, covering both narrowband and wideband scenarios. 【Features】 ■ Clear and easy-to-understand result output ■ Automatic calculation ■ Standardized according to ETSI EG 202 396-3/ETSI TS 103 106 *For more details, please refer to the PDF document or feel free to contact us.

• Voice Recognition Software

"ASP104" is an advanced psychoacoustic analysis tool based on the Sottek hearing model and control signal channels. It is equipped with multiple hearing model analysis tools that perform analysis on RPM, force, temperature, and other control signal channels. It is used for human auditory simulation with appropriate analysis methods, improving product sound quality, and evaluating environmental noise. 【Applications】 ■ Human auditory simulation with appropriate analysis methods ■ Improvement of product sound quality ■ Evaluation of environmental noise *For more details, please refer to the PDF materials or feel free to contact us.

• Analytical Equipment and Devices