o i@s0dZddlZddlmZGdddejjZdS)z(Transducer joint network implementation.N)get_activationc s\eZdZdZ  ddededededed d f fd d Zd ejdejd ejfddZ Z S) JointNetworka]Transducer joint network module. Args: output_size: Output size. encoder_size: Encoder output size. decoder_size: Decoder output size.. joint_space_size: Joint space size. joint_act_type: Type of activation for joint network. **activation_parameters: Parameters for the activation function. tanh output_size encoder_size decoder_sizejoint_space_sizejoint_activation_typereturnNc sTttj|||_tjj||dd|_tj|||_t|fi||_ dS)z Construct a JointNetwork object.F)biasN) super__init__torchnnLinearlin_enclin_declin_outrjoint_activation)selfrrrr r activation_parameters __class__X/home/ubuntu/.local/lib/python3.10/site-packages/espnet2/asr_transducer/joint_network.pyrs  zJointNetwork.__init__enc_outdec_outcCs$|||||}||S)aMJoint computation of encoder and decoder hidden state sequences. Args: enc_out: Expanded encoder output state sequences (B, T, 1, D_enc) dec_out: Expanded decoder output state sequences (B, 1, U, D_dec) Returns: joint_out: Joint output state sequences. (B, T, U, D_out) )rrrr)rrr joint_outrrrforward*s zJointNetwork.forward)rr) __name__ __module__ __qualname____doc__intstrrrTensorr __classcell__rrrrrs0r)r#r!espnet2.asr_transducer.activationrrModulerrrrrs