匿名x-vector选择

def _select_gan_vector(self, spk_vec: torch.Tensor):
    i = 0
    limit = 20
    while i < limit:
        idx = np.random.choice(self.unused_indices)
        anon_vec = self.gan_vectors[idx]
        sim = 1 - cosine(spk_vec.cpu().numpy(), anon_vec.cpu().numpy())
        if sim < self.sim_threshold:
            break
        i += 1
    self.unused_indices = self.unused_indices[self.unused_indices != idx]