The easier option would be a dedicated recorder or control surface with a one button per function interface, maybe even DAW with a proper control surface and some help from a screen reader or accessibility voice prompts.

Old keyboards and synths that you don't need too menu dive into and are not studded with with multi-function rotary encoders would work best if he wants synth sounds, along with a braille tape printer to label things.

Making music isn't about a stack of synths and plugins, a stick banged on the floor, a guitar, a keyboard will do just as well coupled with an old cassette deck.

A little help from friends is always a good thing and makes it a lot more fun for everyone.

There is never any shame in asking for help. I wish more people would realize that, it would greatly improve their lives.

EdIT

Dr. DuckDuckGo has some info as well:
https://blog.prototypr.io/audio-production-for-visually-impaired-musicians-aff825394136

 

You misused the word soundproofing as that means making the room leak proof, the sound not being able to leave the room which would incur many thousands in cost of construction and possibly deconstruction. Treating the room is probably what you meant to say.

 

I have just read about Ableton Move
https://cdm.link/ableton-move-is-a-hit-for-blind-and-low-vision-users/
What is your opinion? Is really helpful for blind people. There might be any other helpful tools out there.

 

1. Ableton Move is a compact and easy-to-use instrument that captures your first musical ideas with over 1500 sounds, a microphone, speakers and other features. Ableton Move is particularly suitable for sampling and making music on the go. 4 hours battery life. 449 EU.

2. Tips and links for blind and visually impaired musicians and music producers
Software with which you can produce music

There are now digital audio workstations (DAW), i.e. software for music production, which can be operated with the help of screen readers and keyboard shortcuts. My research has shown that there are two programs with which this is possible without restrictions. You can access all functions with both programs. Only with plug-ins from third-party providers there may be restrictions, depending on how well the manufacturer has taken screen reader accessibility into account.

However, you can find a suitable plug-in for every purpose, so that a complete production is possible from recording and editing to mixing and mastering. Below I have listed the links where you can find all the information and downloads.

Logic Pro X is a DAW that can also be operated by blind people using VoiceOver and keyboard shortcuts. Detailed information and tutorials can be found on Logic.band and on the homepage: Logic Pro

Another DAW that is suitable for blind people is Reaper. Information about this can be found here: reaperaccessibility.com and on the Reaper homepage: Reaper.fm

To make Reaper accessible for screen readers, you also need the OSARA plug-in: OSARA: Open Source Accessibility for the REAPER Application

NVDA is a free screen reader: NVDA Screenreader
SWS is a useful extension for Reaper: SWS Extension

https://reaperaccessible.fr/index.p...ually-impaired&catid=72&Itemid=219&lang=en-us

3. Home recording with visual impairment or as a blind person
https://www-amazona-de.translate.go...l=auto&_x_tr_tl=en&_x_tr_hl=de&_x_tr_pto=wapp