A hearing aid is, in its basic function, a programmable graphic equalizer with multiband compressor/limiter and directional microphones, so it´s a bit more than that.
For music, it´s best to not use the compressor, so you will get good results with in-ears and equalizer. Just to play some acoustic guitar, I´d think it too much trouble to put in the in-ears, turn on the microfone and so on. If you wear the hearing aid anyway, you can just pick up your guitar and have good sound. That´s what I do.
Also, if the music you play has instruments in it that are not amplified, you will have to use microphones for all of them and have them mixed properly for your in-ears to work. This usually is the case only in a professional environment. Pro´s use in-ears anyway, so you can ask your mixer to apply your hearing-curve into the eq and have good results. If your´re not a pro, a decent hearing aid usually is much easier to use than in-ears.
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A hearing aid is, in its basic function, a programmable graphic equalizer with multiband compressor/limiter and directional microphones, so it´s a bit more than that.
For music, it´s best to not use the compressor, so you will get good results with in-ears and equalizer. Just to play some acoustic guitar, I´d think it too much trouble to put in the in-ears, turn on the microfone and so on. If you wear the hearing aid anyway, you can just pick up your guitar and have good sound. That´s what I do.
Also, if the music you play has instruments in it that are not amplified, you will have to use microphones for all of them and have them mixed properly for your in-ears to work. This usually is the case only in a professional environment. Pro´s use in-ears anyway, so you can ask your mixer to apply your hearing-curve into the eq and have good results. If your´re not a pro, a decent hearing aid usually is much easier to use than in-ears.