A bit like Phonemica. This website has recordings of different accents in Chinese language, including both by native speakers and non-native speakers. Read more.

hanyu123.weebly.com

This website and podcast offer theme-based, progressive online audio lessons. There are transcripts, worksheets, mobile apps, videos and more. Not all of this content is free, but the beginning of ... Read more.

melnyks.com

Another web-based resource with recorded audio for all syllables with all tones. You can also get the “spelling” of the syllable read to you, ie. Initial, final and then the whole syllable. Read more.

lost-theory.org

From the about page: Phonemica is a crowd-sourced project to record spoken stories in every one of the thousands of varieties of Chinese. We believe that each language and dialect is a priceless... Read more.

phonemica.net

This is a research paper detailing a study of the mutual intelligibility of Chinese topolects. Dialects were sorted into groups and then it was experimentally tested how much of words and sentences... Read more.

openaccess.leidenuniv.nl