|Since 5 December 1996.|
The Four Tones in Mandarin Chinese
Talking about tones, we refer to the rising and falling of the pitch in the prononciation. Based on the duration and the pitch of sound, we regroup them into four groups, called "the four tones". The four "tone signs" are the symbols representing the four tones. They must be appeared in the upper-right corner following the last phonetic symbol in a word.
Tone sign : " - " (Normally the tone sign for the first tone is omitted)
Tone sign: " / "
Tone sign: " "
Tone sign: " \ "