[P] Deezer showed CNN detection fails on compressed audio, here's a dual-engine approach that survives MP3

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I've been working on detecting AI-generated music and ran into the same wall that Deezer's team documented in their paper, CNN-based detection on mel-spectrograms breaks when audio is compressed to MP3. The problem: A ResNet18 trained on mel-spectrograms works well on WAV files, but real-world music is distributed as MP3/AAC. Compression destroys the subtle spectral artifacts the CNN relies on. What actually worked: Instead of trying to make the CNN more robust, I added a second engine based ...