Chinese · Pronunciation Guide
syeh, low and sagging. The initial is the thin, smiling hiss of x, and the vowel is a front "eh" after a glide.
xiě
Everything depends on what comes next. Xiě xìn leaves it low since xìn is falling; xiě hǎo would push it up to a rising tone. Note also the near neighbour 谢 xiè with a falling tone — writing and thanking differ only in pitch direction, and both are high-frequency words.
Listen: 写
Free browser voice. Hear it read by a real native speaker inside the LingoDrop app.
我在写信。
Wǒ zài xiě xìn.
I'm writing a letter.
Listen: 我在写信。
Free browser voice. Hear it read by a real native speaker inside the LingoDrop app.
我在写信。 keeps wǒ fully low because zài is falling, then delivers a dip on xiě and a fall on xìn. So the sentence sinks, drops, sinks again and drops again — a genuinely low-pitched utterance with no rises at all, which is unusual enough to be worth hearing as a pattern.
Substituting English "sh" for x is the standard failure and it matters here because 写 xiě and the retroflex shě are distinct syllables. Spread the lips and keep the tongue tip down. The tone is the second issue: a level or rising delivery collides with xiè, so writing a letter can come out sounding like thanking one.