Issue with Lowpass processing method with a certain song. #6
Description
Hello, love your work. As of recent, I've been using this colab adaptation of FlashSR and encountered an error when processing this song in particular when it was processing the last chunks (which was 61/70 with chunk value = 245760). It gave an error:
raise ValueError("Digital filter critical frequencies ValueError: Digital filter critical frequencies must be 0 < Wn < 1)
The error traced to UtilAudioLowPassFilter.py and as I don't understand any of the code really, I put some scripts in Deepseek to find a solution to it. The AI surprisingly gave a few solutions to the problem, the conversation of which you can find here. I decided to go with Solution 1 which was 'Clamping down the cutoff frequency'. I also decided to create a pull request based on the fix. I don't really know much so feel free to edit or reject it.