While -f 141 is of course perfectly fine, may I suggest -f bestaudio ? That should work fine for non-YouTube sites (soundcloud or so), and will get you a better

While -f 141 is of course perfectly fine, may I suggest -f bestaudio ? That should work fine for non-YouTube sites (soundcloud or so), and will get you a better version should YouTube one day add it. If you really prefer 141, you can also use -f 141/bestaudio to fall back to bestaudio if 141 is unavailable.