How to get asr result of audio with offset and duration
Hello!
I want to test an audio file that has a specific offset and duraion, how can I do this?
For example, I want to test from 20s to 40s. The below scripts can only give me the result of the whole audio.
```
import nemo
import nemo.collections.asr as nemo_asr
quartznet = nemo_asr.models.EncDecCTCModel.from_pretrained(model_name="QuartzNet15x5Base-En")
files = [os.path.join(data_dir, 'an4/wav/an4_clstk/mgah/cen2-mgah-b.wav')]
for fname, transcription in zip(files, quartznet.transcribe(paths2audio_files=files)):
  print(f"Audio in {fname} was recognized as: {transcription}")
```