Daohugoupterus is pronounced dow-hoo-GOP-ter-us.
/ˌdaʊ.huːˈgɒp.tər.əs/
Capitals mark the stressed syllable.
Part of this name comes from Chinese and is said roughly as in Mandarin; the rest follows the usual English way of saying scientific names. The audio is a synthesized voice reading the respelling.
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Where the name comes from
ptero-
/ˈtɛr.oʊ/
Greek, “pteron, wing”
IPA from Wiktionary
What the name means
The generic name combines a reference to Daohugou with a Latinised Greek πτερόν, pteron, "wing".