fix start timestamp in sentence_info (#2024)

lingji-yidong

2024-08-19 f43da18b5e097515c12438c70fc7918c29e5d0c8

 funasr/frontends/utils/beamformer.py

@@ -76,9 +76,7 @@
    return beamform_vector


def apply_beamforming_vector(
    beamform_vector: ComplexTensor, mix: ComplexTensor
) -> ComplexTensor:
def apply_beamforming_vector(beamform_vector: ComplexTensor, mix: ComplexTensor) -> ComplexTensor:
    # (..., C) x (..., C, T) -> (..., T)
    es = FC.einsum("...c,...ct->...t", [beamform_vector.conj(), mix])
    return es