In this whitepaper, we look at the principles of digital signal processing, algorithms and software that improve hearing for people with hearing loss. The inspiration for this whitepaper comes from the World Health Organization's recent World Report on Hearing (WHO), which shows that 1.5 billion people worldwide have some degree of hearing loss and 430 million people need rehabilitation services. Shockingly, less than 3% (on average worldwide) use hearing aids.
Can anything be done to change this? For example, can True Wireless Stereo (TWS) earphones that use the same hardware components serve as over-the-counter hearing aids (OTC)? The answer is yes, if their software is upgraded with algorithms specifically tailored to the needs of the hearing impaired.
The main goal of this text is to provide readers with a general understanding of these algorithms and how they can improve hearing. Our goal is to present this information in a simple and intuitive way, without using formulas, to make it accessible to everyone.