Research

Papers.

Working preprints on audio deepfake detection and the systems that run it. Each paper is readable in full on this site. None is peer reviewed, and none claims a venue, DOI or arXiv identifier, because none has one.

  1. 02Working preprint / 202614 pages

    Do generator artifacts survive a language change?

    A language-disjoint study of forensic representations for speech deepfakes

    Ayush Sahu, Tarini Sai Padmanabhuni, Sanjith Kumar

    Source tracing assumes a synthesis system leaves a trace that belongs to the system, not to the language it happens to be speaking. We test that by holding the generator fixed and replacing the language entirely: 62 generators learned across 12 languages, evaluated on 6 removed from the corpus before training.

    91.0%
    Top-1 on unseen languages
    3.2 pts
    Cost of the language change
    0.064
    Language entanglement ratio
  2. 01Working preprint / 202625 pages

    Deploying an audio deepfake detector across GPU, CPU and Android

    Precision, runtime and platform in the deployment of an audio deepfake detector: a measured cross-target study

    Ayush Sahu, Tarini Sai Padmanabhuni, Sanjith Kumar

    Published work reports detection accuracy far more often than the cost of running the model. One 158.9M-parameter detector, seven inference configurations, three device classes, and the same 4,000-clip out-of-distribution set scored by every one of them.

    312x
    Sustained capacity range
    0.00040
    ROC-AUC range
    7 / 4,000
    Mobile vs server label changes