fix: resolve IndexError when using spk model and the audio contains only 1 ...

Atomie CHEN

2024-03-25 ff83116369ba6afe56430cb0b9d977fbe7f4bced

 funasr/frontends/wav_frontend.py

@@ -75,6 +75,7 @@
    LFR_outputs = torch.vstack(LFR_inputs)
    return LFR_outputs.type(torch.float32)

@tables.register("frontend_classes", "wav_frontend")
@tables.register("frontend_classes", "WavFrontend")
class WavFrontend(nn.Module):
    """Conventional frontend structure for ASR.