MARC: Multi-Bit Watermarking for Autoregressive Audio Generation against Codec Attacks
MARC is a multi-bit watermarking method designed for autoregressive audio generation to survive attacks from various codecs. It works by creating a codec-aware token-cluster space that combines intrinsic token representations with confusion patterns from retokenization and multiple codecs. This approach allows for robust embedding, detection, and recovery of up to 16 bits of information.