[HN Gopher] A DIY Audio Induction Loop for the Hard of Hearing ___________________________________________________________________ A DIY Audio Induction Loop for the Hard of Hearing Author : kevinphy Score : 39 points Date : 2020-10-10 18:19 UTC (4 hours ago) (HTM) web link (spectrum.ieee.org) (TXT) w3m dump (spectrum.ieee.org) | jws wrote: | That takes care of half of the problem. | | You will be a complete hero if you write up how to do "blind | signal separation" with an economical microphone array. Such a | device can be ceiling mounted and use copious heaps of | mathematics to locate speaking people and isolate just their | voice, attenuating other room noise and echos. | | There are likely affordable hardware candidates, the $55 | ESP32-Lyra-TD development board with 3 microphones or the MATRIX | Voice with 8 at $75. Both have special hardware for the signal | processing. | ampdepolymerase wrote: | You will almost certainly need a neural accelerator for this, | neural networks are currently the only known effective solution | for cocktail party problems. | deadlyllama wrote: | In my recent experience in churches in New Zealand, newer hearing | aids either don't have T-coils, or the audiologist has to turn | them on (and hasn't), or the hearing aid owner does but doesn't | know how. | | 10-20 years ago everyone had a T-coil and loop systems were a | great option. Now they're not. ___________________________________________________________________ (page generated 2020-10-10 23:00 UTC)