What libraries are there and is it really possible to convert mp3/wav to FLAC in php/js (it doesn't matter on the server or client)?

Question

PHP

I record sound in phonegap and in order to send a speech to google (because Yandex is paid) I need to have a FLAC format and I can only write wav / mp3 / amr and I need to convert better to js, ​​but you can send it to the php server and from there already to google, Are there any libraries, etc., or is there a better option?

Answer 1

ffpmeg/mencoder