once again i really dont know what you re trying to say how is Ti pronounced Chi? no matter the stretching, nowhere in the japanese language will you find any of those sounds. So it's pretty pointless to say that tu is read tsu for these anomalies exist for S too "shi".
And finally katakana is the same exact thing as hiragana describing the same exact sounds/syllables but used for foreign words and written differently. Moreover hiragana is not used for "roman" words like you suggested.
once again i really dont know what you re trying to say how is Ti pronounced Chi? no matter the stretching, nowhere in the japanese language will you find any of those sounds. So it's pretty pointless to say that tu is read tsu for these anomalies exist for S too "shi".
And finally katakana is the same exact thing as hiragana describing the same exact sounds/syllables but used for foreign words and written differently. Moreover hiragana is not used for "roman" words like you suggested.
well u misunderstood me. i didnt say hiragana is used for roman words! i said u cant write Hiragana using roman alphabet.but in Japan they use roman letters to teach foreigners how to read hiragana (so they write"つ" as "tu"
and by the way, if you use a japanese computer you hit t and u to write tsu