On 16 April 2017 the patents on the MP3 format run out. This means that there shouldn't be anything in the way anymore to package the necessary libraries to play mp3s with the default version.
sox_ng includes everything, now that all patents have expired (AMR coding expires last year and LPC10's previously uncertain copyright status is no sorted out).
Its Windows EXEs at https://codeberg.org/sox_ng/sox_ng/releases contain everything; for Unix systems you'll either have to wait for your software distribution to switch to sox_ng, or compile it yourself - see its README.md for instructions to do this.
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sox_ng includes everything, now that all patents have expired (AMR coding expires last year and LPC10's previously uncertain copyright status is no sorted out).
Its Windows EXEs at https://codeberg.org/sox_ng/sox_ng/releases contain everything; for Unix systems you'll either have to wait for your software distribution to switch to sox_ng, or compile it yourself - see its README.md for instructions to do this.