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 clip introduces all the initials and finals in Pinyin (using the first tone). It adds value to the rest of the resources here because the camera is pointed to the speaker’s mouth, showing clea... Read more.

youtube.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

This course is designed to give a practical command of spoken Standard Chinese. Nine situational modules form the core of the course. Each core module consists of tapes, a student textbook, and a w... Read more.

fsi-language-courses.org

This is a very large list of traditional characters with multiple pronunciations in the form of an Excel file (the other two files are announcements about the list in Chinese). The first sheet just... Read more.

word.hlc.edu.tw

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

Foreigncy provides daily digital flashcards, with audio, that prepare a user to read a foreign policy or economics from a regional source. The site also provide users with an English language summa... Read more.

foreigncy.org

This page lists variant pronunciations and their standard readings in Mandarin Chinese (Mainland Standard). It does not list characters that have different readings based on different meanings, so ... Read more.

baike.baidu.com