三人行，必有我师(焉)

Am I remembering right that you're on a Mac? I don't know if any of these will work, because I guess it depends on what TTS voices you already have installed (if any), but you could try going into the Anki card browser > "cards..." and adding these codes to the front or back side, and see if any of them work...

{{tts zh_CN voices=Apple_Ting-Ting:Hanzi}}
{{tts zh_TW voices=Apple_Mei-Jia:Hanzi}}
{{tts zh_CN voices=Apple_Li-mu:Hanzi}}
{{tts zh_CN voices=Apple_Yu-shu:Hanzi}}

There are some videos on YouTube about how to add audio to cards, like this one, but they always use English voices for their examples, so I don't know if there are extra steps to actually download voices for other languages. :P (Android mobile has it built in, so I didn't have to do anything.) But it's possible that one of these codes might work without extra hassle if you do have one of them installed.