I took a look into your project. It has a similar signature to another project I looked into recently, however, the underlying cause is completely different, including sqlite corruption, which I did not see in the other project.
I will try to look further into this tomorrow. I am a volunteer, so no promises.
I am sorry to report that I would need additional tools to proceed much further with this. What with my other commitments, this could be quite a while, so I have forwarded what I have learned to the developers in the hopes that they can come up with solutions I have not.
The developer was able to recover a portion of your file, for which I have sent you a link via PM. He said,
This is the best I can do, I’m afraid
The portion where there has lost the left channel seems to be using a different sample rate. I’ve tried to guess my best, but I don’t speak Portuguese.
I will try to make a podcast with what you rescued.
Using a different machine? If you didn’t repair any machine damage or actually fix anything, it may happen again. The developer complained about sample rate problems in the show. It’s super unusual for a healthy recording system to run at two different sample rates at the same time.