YOU SAID:

putting quotation marks on some japanese kana makes the sound different

INTO JAPANESE

日本のかなに引用符を付けると音が異なります

BACK INTO ENGLISH

If you quote Japanese kana, the sound will be different.

INTO JAPANESE

日本のかなを引用すると音が違います。

BACK INTO ENGLISH

The sound is different when quoting Japanese kana.

INTO JAPANESE

日本語のかなを引用すると音が違います。

BACK INTO ENGLISH

The sound is different when quoting Japanese kana.