公开(公告)号：US11222621B2

公开(公告)日：2022-01-11

申请号：US16879714

申请日：2020-05-20

Applicant: Google LLC

Inventor： Eric Dean Battenberg ,  Daisy Stanton ,  Russell John Wyatt Skerry-Ryan ,  Soroosh Mariooryad ,  David Teh-hwa Kao ,  Thomas Edward Bagby ,  Sean Matthew Shannon

IPC: G10L15/22 ,  G06N3/00 ,  G06N3/08 ,  G10L13/047 ,  G10L13/10

Abstract: A method for estimating an embedding capacity includes receiving, at a deterministic reference encoder, a reference audio signal, and determining a reference embedding corresponding to the reference audio signal, the reference embedding having a corresponding embedding dimensionality. The method also includes measuring a first reconstruction loss as a function of the corresponding embedding dimensionality of the reference embedding and obtaining a variational embedding from a variational posterior. The variational embedding has a corresponding embedding dimensionality and a specified capacity. The method also includes measuring a second reconstruction loss as a function of the corresponding embedding dimensionality of the variational embedding and estimating a capacity of the reference embedding by comparing the first measured reconstruction loss for the reference embedding relative to the second measured reconstruction loss for the variational embedding having the specified capacity.