INTERACT FORUM
More => Old Versions => JRiver Media Center 27 for Windows => Topic started by: JimH on September 12, 2020, 06:45:58 pm
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There's a good chance that Samsung, Apple, etc will add hearing aid capabilities to phones in the near future.
Apparently Samsung has an app that checks how well you hear certain frequencies, and based on your answers, sets up equalization for audio playback. Nice idea.
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There are applications on android do that. One of them is neutralizer: https://play.google.com/store/apps/details?id=eu.javeo.android.neutralizer.
But it is not clear what is their target EQ graph. Maybe modified harman target.
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Hearing aids manufacturers have been tailoring equalizers for individuals for years. The technology can go well beyond simple adjustments based on frequency. For example, volume and noise levels also come into play. There are already techniques like HD Voice built into phones to improve sound quality of calls, but they are not customized for the individual.
I am no expert on this, but here are a couple of interesting, older, articles I found on the hearing aid techniques. The first article discusses the issue that measurement based equalization is often not what the users like best. As always, human hearing and sound perception is a lot more complicated that many people think.
https://www.hearingreview.com/practice-building/practice-management/a-patient-adjusted-fine-tuning-approach-for-optimizing-the-hearing-aid-response
https://www.audiologyonline.com/articles/advanced-graphic-equalizer-hearing-aid-1235
Of course, for music these techniques only apply to individual devices, like headphones, or single user systems. Once you branch into multi-listener systems, you are back to traditional use of techniques like room equalizing.