Phonetic pangrams
Way back in 1999, I wrote a column about pangrams: “A pangram is a sentence that uses each letter of an alphabet at least once.”
Much more recently, I learned about the concept of a phonetic pangram: a sentence that uses each phoneme of a language at least once.
That phrasing of mine elides a lot of complexity that makes the definition hard to pin down exactly. For example, different speakers of a given language may use somewhat different sets of phonemes, due to accents and dialects and such. And further complications arise when you consider allophones—sounds that a speaker of a language considers to be the same, but that are different if you compare spectrograms. If you want to record a bunch of speech sounds in order to be able to generate speech, you need much more data than a single brief phonetic pangram.
But even so, I like the general idea.
One example of a phonetic pangram in English: “That quick beige fox jumped in the air over each thin dog. Look out, I shout, for he's foiled you again, creating chaos.”
For some more examples and further discussion, see a Quora question from 2015 or so.