I am deeply grateful for your words. It has been just over a year since I received my cochlear implant. Thanks to you, I learned for the first time today that this methodology is not yet mature enough to be used in clinical practice. I started this because I wanted to understand the sounds of the world I now hear, but there is still so much I don't know. That is why I am actively participating in and collaborating on cochlear implant research in Korea as much as I can. I also sincerely thank you for your dedication to advancing science.
I haven't listened to much chiptune, MIDI, or electronica, so I'm not very familiar with them. But after hearing about your experience, I think I should look them up and give them a listen. Thank you for the great suggestion.
Without modern AI, I don't think I could have come this far. That said, I'm not an expert, so I believe I should humbly accept whatever criticism comes my way. Although I haven't found the answer yet, I'm grateful to AI for its help. Thank you for your kind words.
Unfortunately, I still don't know the answer. At least to my ears, music sounds clear and beautiful, so why is speech so muffled and hard to understand? My hearing loss remains a mystery. A thorough evaluation at a university hospital might reveal the cause, but nothing I can do on my own will uncover it. For now, I'm left with an unresolved limitation: I can't tell whether the problem lies in the peripheral auditory system, the central auditory system, or the cochlear implant itself.
I pleaded with the cochlear implant company to do research, telling them I desperately wanted to know exactly how I hear, but unfortunately, the only answer I got was that it would be difficult. It makes me feel so sad and helpless.
Thank you for pointing out that the 70 Hz is a modulation rate, not an audio frequency. That's exactly right. I wish I could find someone in Korea to help me with the hardware side, but no matter how hard I've tried to persuade people, I've mostly been ignored. As for the Lean part, I wasn't sure whether it was really necessary. I've never been part of academia, so I'm still very clumsy and amateurish at this. Even so, I'll keep doing my best to find someone who can help with the hardware side. Thank you for your kind words.
I was tired yesterday, and I have very little experience writing, so I fully respect the criticism that the post feels messy and strange. I think some parts were accidentally lost in the translation process. As you said, I don't have a single person around me who can help with this, so I've been relying on AI. But I'm consciously keeping myself grounded so that I don't fall into anything like AI psychosis. I'm sorry that the post wasn't better written.
Thank you, I really appreciate your comment. I've never really studied English, so I needed help from an AI translator. Because of that, I was very worried even before posting. Thank you for your encouragement.
Thank you. Your compliment really encourages me. This is something I had always been thinking about, and I feel I was able to make it happen with the help of AI. But I still have a lot to learn, so I welcome criticism too. Even so, your kind words mean a lot to me.
Thank you so much. Speech sounds muffled and blurry to me, but music always sounds so beautiful and lovely. It truly is beautiful. I hope you also have many happy moments listening to beautiful music.
I don't do programming myself, but I'll look into GitHub Pages. I'm deeply grateful for your advice. I've been making clear and repeated requests to the startup, but for some reason, they haven't accepted them for a whole year, and I honestly feel so sad about it.
I don't have any other experiments planned yet. I'm still thinking hard about what to do next, and honestly, I'm not sure what kind of tests I should try.
Thank you so much for your kind words and for taking a close look at the repo. You’re right, it currently only contains the data, not the tests or the tracks themselves. I’m really sorry about that. I work a full-time job, so I can’t upload them right away, but I will add the test tracks and the code used to generate them later.
Yes, I have. For a whole year, I asked about it at every mapping session. But no matter how many times my cochlear implant was remapped, there wasn't much improvement. I still don't know whether the cause lies in my auditory nerve (peripheral) or in how my brain processes sound (central), or something else entirely. I told my audiologist that speech sounds blurred, and I also brought it up with my doctor, but nothing really improved.
This is an intriguing proposal. In my experience, however, Hatsune Miku's pronunciation is not clearly intelligible upon first hearing one of her songs. The words become distinct only when I read along with the romanized lyrics. With repeated exposure to the same song, I am eventually able to understand it without the lyrics; however, I would argue that this reflects top-down prediction grounded in memory rather than any increase in the clarity of the sound itself. This is analogous to the phenomenon of sine-wave speech, in which sounds initially perceived as meaningless whistles or electronic tones are suddenly heard as clear, intelligible speech once the listener has been shown what is being said.
Sorry about that. Korean and English are very different languages, so I think some things got lost in translation. I completely understand the AI slop concern, and I take that kind of criticism seriously.
I was born with normal hearing and acquired language while I still had it. But now, no matter how hard I try to think back, I can’t remember what things sounded like back then. I know that people’s voices sounded clear, but at this point, that’s merely a semantic memory. The sound itself, the actual sensory experience of it, is something I can’t fully recall.
When I was very young, I had normal hearing, but I don’t remember any of the sounds I heard back then. I think I lost my hearing around first grade, which in Korea is around age seven. Until then, my hearing was normal, and that’s when I learned to speak. But these are such early childhood memories that I can’t really be sure. What did everything sound like back then...? I don’t know.
(Sorry if my last post seemed to have some mistakes. I was tired yesterday and didn’t review it carefully, so there were a few contradictions. I’m trying my best to write as accurately as possible)
Author here. I'm Korean, and I have cochlear implants in both ears, which I received in a clinical trial in 2025. No one could tell me what I actually hear, so between 11 October and 4 November 2026 I ran seven psychophysical tests on myself (10,992 trials), using browser test apps that Claude built for me. I'm an amateur, so there are surely mistakes, and corrections are very welcome.