FIX 'NoneType' object has no attribute 'isalpha' (#2440)

passerbya

2025-03-20 5ee2f382b32c5c0beaa1c133b466a100c6fb7ebc

 funasr/frontends/default.py

@@ -20,6 +20,7 @@


@tables.register("frontend_classes", "DefaultFrontend")
@tables.register("frontend_classes", "EspnetFrontend")
class DefaultFrontend(nn.Module):
    """Conventional frontend structure for ASR.
    Stft -> WPE -> MVDR-Beamformer -> Power-spec -> Mel-Fbank -> CMVN