I suggest removing all of the symbols like -·-·-·-·-··--, either replacing them with "tick tick tick" or simply not displaying anything except the letters and playing the sound.
It should be in the form of a letter->Sound, rather than letters ->Dot-and-dash graphics ->The sound. And also the reverse.
Phrase ->Sound, sound ->Phrases; not sounds->Letter->Dot-and-dash graphics ->Phrase
I always find myself drawing little figures and copying notes; this doesn't seem to help me learn anything new.
As in, "How are you?" The obvious and direct response would be, "I'm fine, thank you!"
Something like "dot-and-stroke graphics" is essentially like Chinese Pinyin or English phonetics. We need to teach newcomers how to pronounce it. But who would think about the phonetic spelling of a word when they're reading?
A Studying at "Tick-Tack"; B Studying at "Dada-Dada-Dada", what does that mean? I don't know, I'm not sure.
As for operating a radio, the worst-case scenario is that you can send messages with just your hands. At best, it will be slow.
With ten percent of my effort, I focus on listening and repeating. Besides the professional team, it's not necessary to pay too much attention to the communication between players. As long as everyone can understand each other, even if someone has a slight accent or their voice sounds a bit noisy, that's fine.
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