Converting recorded wav calls to mp3

A BIG thank you to everybody who contributed to this thread. It has solved a big problem for us.

However, I noticed the mp3 audio sounds “tinny” when played back in Chrome and Edge. Downloaded files sound fine played on local applications. Other embedded mp3s sound just find so I think it should be solveable. Any ideas?

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You can’t polish a turd, generally your recorded conversation will originate as g711 or less. that means a band-width of 300-3000 Hz, (which is tinny)

Fair enough. Just curious that it sounds fine in my playback applications, but pretty awful in the browser.

I tinkered with the encoding parameters and came up with decent sounding output. resampling to 16kHz made a huge difference:

nice lame -b 32 -m m --resample 16

If you say so, but sampling an 8khz file at 16khz . . .

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