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Re:Show HN: Mandarin Tone Trainer – A ‘Helping Ear’ for Mand... by bayesian_horse on Saturday December 21, 2019 @12:50PM (#21852395)
I'd also suggest Duolingo which has audio for all sentences in its course and uses speech recognition.

Additionally the Pimsleur courses are great, with non-interactive lessons you can listen to with a media player. But relatively expensive, if you want to own it legally. They also don't do characters at all, so it can only be a part of the journey.

Re:Show HN: Mandarin Tone Trainer – A ‘Helping Ear’ for Mand... by faitswulff on Saturday December 21, 2019 @12:57PM (#21852426)
As an alternative to Pimsleur, you can often find a login to Mango Languages at your local library's digital resources, which uses a very similar teaching methodology.