Adding support for setting number of threads to faster-whisper cpu, reading from cli, yaml or env var.

scraibe/transcriber.py

@@ -36,7 +36,7 @@ from inspect import signature
 from abc import abstractmethod
 import warnings
 
-from .misc import WHISPER_DEFAULT_PATH, SCRAIBE_TORCH_DEVICE
+from .misc import WHISPER_DEFAULT_PATH, SCRAIBE_TORCH_DEVICE, SCRAIBE_NUM_THREADS
 whisper = TypeVar('whisper')
 
 
@@ -348,7 +348,8 @@ class FasterWhisperTranscriber(Transcriber):
                           f'device {device}! Changing compute type to int8.')
             compute_type = 'int8'
         _model = FasterWhisperModel(model, download_root=download_root,
-                                    device=device, compute_type=compute_type)
+                                    device=device, compute_type=compute_type, 
+                                    cpu_threads=SCRAIBE_NUM_THREADS)
 
         return cls(_model, model_name=model)