|
|
|
|
|
|
by grumpitron
1396 days ago
|
|
|
I don’t think it needs to selectively amplify just one voice, it just needs to quiet down the background noise. For reference I had a friend whose hearing aids were doing this 15-20 years ago. He was able to have a conversation just fine in a crowded bar, whereas I couldn’t hear a thing over the din of background conversation. |
|
|