Mic mismatch inflates ASR benchmarks: Bredin shows 26% vs 11.4% WER

Nvidia Parakeet scores 11.4% word error rate on AMI meeting data with headset mic, but 26% with table mic — same model, same recordings. Hervé Bredin (pyannoteAI) highlights that most ASR benchmarks overstate real-world performance due to microphone choice.