After trying the online tool referenced, I found two major (show-stopper) issues :
limited use (you need to register/pay for unlimited conversions/batch conversion)
unusable AAC files (bad bitrate).
After looking a little, I found an OPENSOURCE and FREE solution working at least on Windows and Linux (I don’t have a Mac computer) : Fre:ac (previously BonkEnc).
In the filter options, you need to activate two filters : the channel (set to mono)- and the samplerate (set to 24000).
In the encoder, you need to put FDK-AAC and configure it for 64kbps and AAC (AAC is on the second tab).
Il allows batch-encoding (but better go to optios->encoder and set file name to something without a directory name for example - ).
When writing the usage guide, we were looking for something users could easily use without installing any third-party software, so the online tool we referenced was a natural choice. It seems, however, since then the tool has changed, and we’ll update the guide with a better alternative ASAP.
Thank you for letting us know about the changes and suggesting an alternative. We’ll look into Fre:ac and some other alternatives and put them into the Jay-D usage guide in the near future
well some good news, this is not intended but you can get infinite conversions with the website. using it myself, i found that you get 16 free tokens on the website. so for audio conversions thats 30 seconds 16 times (a total of 660 sec or 11 minutes) after all of them are spent to get more is simply, just clear site data and just like that the free tokens are back! so songs under 11 minutes can be infinitely converted as far as i am aware.
