When I tried to use WhisperPS transcribe a entire folder, the generated timestamp was not available.

I ues this commond Import-Module WhisperPS -DisableNameChecking $Model = Import-WhisperModel D:\ai_model\WhisperDesktop\ggml-model-whisper-medium.bin cd D:\test dir *.mp4 | Transcribe-File $Model | foreach { $_ | Export-SubRip ($_.SourceName + ".srt") } The timestamps in the srt file are all 00:00:00,000 --> 00:00:00,000

What did I do wrong?