I’m beginning Chinese Mandarin and trying to get a firm foundation in terms of pronunciation by working on mouth positions etc.
I’ve encountered a bit of ambiguity in that the d sound in pinyin is listed as alveolar on Wikipedia and yet on YouTube videos I have seen the tongue appears to be in a post alveolar position.
I would like to know roughly where on the alveolar ridge one should place one’s tongue when making this sound i.e. just behind the teeth; in the middle of the alveolar ridge; or post alveolar.
Thank you in advance for your help,