add demo.py for all kws models (#2107)

sugarcase

2024-09-25 8cd8e25f180b57c74f1ae7fd39001e5af4c20f8b

 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