EVIDENCE PUBLICATIONS

Take a closer look at the science and technology behind our products and features. Explore how our products and solutions can help your clients and your business.

RECENT PUBLICATIONS │  2021 │  2020 │  2019 │  EVIDENCE ARCHIVE

Hearing aid delay in open-fit devices – coloration-pitch discrimination in normal-hearing and hearing-impaired

By Georg Stiefenhofer

Published in International Journal of Audiology, March 17, 2022

This article investigates coloration-pitch, a main artefact of the mismatch between direct and hearing-aid sound that arises when the hearing-aid sound is delayed. The perception of coloration-pitch artefact is particularly critical for mild to moderate hearing losses and open fittings. The results show that people with normal hearing can detect changes in coloration-pitch when the delay is above a threshold of approximately 0.3 ms, while the threshold for people with mild-to-moderate hearing loss is between 0.6 and 1 ms. This means that changes in delay are audible to these groups for hearing aid delays above 1 ms. Conversely, the delay must be below 1 ms in order to make changes in the coloration-pitch artefact inaudible. It also indicates that the delay in Widex PureSound is below the threshold for the detection of delay changes and therefore the advantages with a low hearing aid delay can be fully utilized by its target group of users with mild-to-moderate hearing losses.

Read the full article on International Journal of Audiology

Download pdf

Widex publication: Signal Processing and Sound Quality

Signal Processing and Sound Quality

By Laura Winther Balling, PhD, Lars Dalskov Mosgaard, PhD, and Dana Helmink, AuD

Published in HearingReview, March 2, 2022

Hearing aid signal processing is central to the sound that surrounds the user every day. This article lays out different possible signal-processing strategies, focusing on the choice of filter bank and sampling rate, and how these relate to sound quality. Although both time- and frequency-domain filter banks have their advantages, the sound-quality benefits of a time-domain filter bank outweigh other considerations. 

Read the full article on HearingReview

Download pdf

Widex publication: Optimizing Sound in Signal Processing and Hearing Aid Fitting

Optimizing Sound in Signal Processing and Hearing Aid Fitting

By Laura Winther Balling, Ph.D. and Dana Helmink, Au.D.

Published in Audiology Practices, December 2021

The two major audiological innovations in Widex MOMENT™ are TruAcoustics™, which optimizes gain to the individual’s ear canal, and PureSound™, which uses the revolutionary ZeroDelay™ processing to provide a more natural sound for mild-to-moderate hearing losses. This article provides an overview of the evidence supporting these innovations, including sound quality studies, speech intelligibility testing, neurophysiological experiments using EEG, real-ear measurements, and real-life survey data.

Read the full article on Audiology Practices

Download pdf

Widex publication: The Collaboration between Hearing Aid Users and Artificial Intelligence to Optimize Sound

The Collaboration between Hearing Aid Users and Artificial Intelligence to Optimize Sound

By Laura Winther Balling, Lasse Lohilahti Mølgaard, Oliver Townend, Jens Brehm Bagger Nielsen

Published in Seminars in Hearing, September 24, 2021

Hearing aid gain and signal processing are based on assumptions about the average user in the average listening environment, but problems may arise when the individual hearing aid user differs from these assumptions in general or specific ways. This peer-reviewed article describes Widex SoundSense Learn, an artificial intelligence (AI) mechanism that operates continuously on input from the user to alleviate such problems by using a type of machine learning known as Bayesian optimization. The basic AI mechanism is described, and studies showing its effects both in the laboratory and in the field are summarized. A crucial fact about the use of this AI is that it generates large amounts of user data that serve as input for scientific understanding as well as for the development of hearing aids and hearing care. Analyses of users' listening environments based on these data show the distribution of activities and intentions in situations where hearing is challenging. Finally, this article demonstrates how further AI-based analyses of the data can drive development.

Read the full article on Seminars in Hearing

Download pdf

Widex publication: Sound Quality for All: The Benefits of Ultra-Fast Signal Processing in Hearing

Sound Quality for All: The Benefits of Ultra-Fast Signal Processing in Hearing

By Laura Winther Balling, PhD, Oliver Townend, BSc, and Dana Helmink, AuD

Published in HearingReview, September 8, 2021

With the launch of Widex MOMENT™ came the unique approach to digital amplification in Widex PureSound™. Thanks to its ultra-fast signal processing, PureSound overcomes long-standing barriers to great sound quality, and speech-understanding and EEG data also suggest that users benefit from eliminating delay-based distortion. Exploring the effects of delay in real life, a survey of PureSound users showed that ultra-low delay is associated with higher ratings on a range of important parameters, including naturalness, localization, and hearing in noise.

Read the full article onl HearingReview

Download pdf

Widex publication: Sound Quality in Real Life: Not Just for Experts

Sound Quality in Real Life: Not Just for Experts

By Laura Winther Balling, PhD, Oliver Townend, BSc, and Dana Helmink, AuD

Published in HearingReview, February 17, 2021

Widex hearing aids are designed with a focus on sound quality, which is a key feature for overall hearing aid satisfaction as well as in everyday moments of real-life hearing. A large international survey of hearing aid users confirms the importance of sound quality, showing higher satisfaction with the Widex MOMENT™ hearing aids for overall sound quality, for specific situations of real-life use, and for hearing aid users’ ability to participate in daily life.

Read the full article on HearingReview

Download pdf

WIDEX PUBLICATIONS IN 2021

WIDEX PUBLICATIONS IN 2020

WIDEX PUBLICATIONS IN 2019

EVIDENCE ARCHIVE

WidexPress 47: Further Improvements to Fitting for Widex MOMENT >

WidexPress 46: Asking the Experts – Hearing Care Professionals’ View of Widex >

WidexPress 45: Widex MOMENT ™ - TruAcoustics™ optimised >

WidexPress 44: Widex MOMENT™ - Quantifying acoustic distortions >

WidexPress 43: Widex MOMENT™ - this sound changes everything >

WidexPress 42: Machine learning in WIDEX EVOKE: Perceptual benefits of SoundSense Learn >

WidexPress 41: Real-life benefits of WIDEX EVOKE: and early look at end-user survey results >

WidexPress 40: Real-life hearing part 2: Assesment and solutions >

WidexPress 39: Real-life hearing part 1: The theory behind >

WidexPress 38: The Widex fitting rationale for EVOKE >

WidexPress 37: A compilation of Widex ZEN therapy evidence >

WidexPress 36: UNIQUE solutions for first time hearing aid wearers >

WidexPress 35: Dream evidence compilation >

WidexPress 34: DREAM CIC MICRO >

WidexPress 33: Widex CROS >

WidexPress 32: An Introduction to Widex Zen Therapy >

WidexPress 31: Evidence for the effectiveness of the Audibility Extender in restoring the perception of high-frequency sound >

WidexPress 30: WidexLink >

WidexPress 29: Evidence for the Benefits of Binaural Amplification >

WidexPress 28: Evidence Supporting the use of Zen as a Tool for Tinnitus and Relaxation >

WidexPress 27: Tinnitus and the Widex Zen program >

WidexPress 26: Why the size of a hearing aid matters when fitting infants and young children >

WidexPress 25: AISA: An accurate method for assessing the acoustic effect of the ear - mould >

WidexPress 24: Extending hearing aid bandwidth >

WidexPress 23: The Speech Enhancer in mind440 >

WidexPress 22: The ZEN program from Widex >

WidexPress 21: The Effect of Non-Linear Applification and Low Compression Threshold on Receptive and Expressive Speech Ability in Children with Severe and Profound Hearing Loss >

WidexPress 20: Preliminary field and laboratory trials with Senso Diva >

WidexPress 19: Batteries from Widex >

WidexPress 18: Design Considerations in Directional Microphones >

WidexPress 17: Evaluation of a digital power hearing aid: Senso P38 >

WidexPress 16: Sound Stabilizer and SIS >

WidexPress 15: Audiological background and design rationale of Senso Dica >

WidexPress 14: Using a DSP Instrument Fitting Protocol for Pediatric Cases >

WidexPress 13:Rationale for Binaural Hearing Aid Fittings >

WidexPress 12: Technical improvements to enhance the performance of completely-in-the-canal (CIC) hearing aids >

WidexPress 11: Fitting a Wide Range Compression Hearing Instrument Using Real Ear Threshold Data: A New Strategy >

WidexPress 10: Hearing Aids and Cellular Phone >

WidexPress 9: Senso C9. Performance of the Senso C9 >

WidexPress 8: Senso: Audiological background >

 

Below you will find a selection of tinnitus related publications available online. Get in touch with us if you wish to hear more and let us uncover your needs and explore how we can help your business.

2018:

2017:

2015:

2014:

2013:
2012:

2011:

2010:

2008:

Below you will find a selection of Widex EVOKE related publications available online. Get in touch with us if you wish to hear more and let us uncover your needs and explore how we can help your business.

2018:

Below you will find a selection of Widex mind related publications available online. Get in touch with us if you wish to hear more and let us uncover your needs and explore how we can help your business.

2010:

Below you will find a selection of Widex EASYWEAR related publications available online. Get in touch with us if you wish to hear more and let us uncover your needs and explore how we can help your business.

2014:

Below you will find a selection of Widex CROS related publications available online. Get in touch with us if you wish to hear more and let us uncover your needs and explore how we can help your business.

2014:

2013:

Below you will find a selection of Widex DEX related publications available online. Get in touch with us if you wish to hear more and let us uncover your needs and explore how we can help your business.

2012:

Below you will find a selection of feature and technology related publications available online. Get in touch with us if you wish to hear more and let us uncover your needs and explore how we can help your business.

2018:

2017:

2016:

2012:

2011:

2010:

2009:

2008:

2007:

2006:

2002:

DO YOU HAVE ANY QUESTIONS? 

Visit our online support area
Business support
Widex icon headset
Go to the top