convert audio wav to mp3 (#552)

api/services/audio_service.py

@@ -6,7 +6,8 @@ from services.errors.audio import NoAudioUploadedServiceError, AudioTooLargeServ
 from core.llm.whisper import Whisper
 from models.provider import ProviderName
 
-FILE_SIZE_LIMIT = 1 * 1024 * 1024
+FILE_SIZE = 15
+FILE_SIZE_LIMIT = FILE_SIZE * 1024 * 1024
 ALLOWED_EXTENSIONS = ['mp3', 'mp4', 'mpeg', 'mpga', 'm4a', 'wav', 'webm']
 
 class AudioService:
@@ -23,17 +24,17 @@ class AudioService:
         file_size = len(file_content)
 
         if file_size > FILE_SIZE_LIMIT:
-            message = f"({file_size} > {FILE_SIZE_LIMIT})"
+            message = f"Audio size larger than {FILE_SIZE} mb"
             raise AudioTooLargeServiceError(message)
         
         provider_name = LLMBuilder.get_default_provider(tenant_id)
         if provider_name != ProviderName.OPENAI.value:
-            raise ProviderNotSupportSpeechToTextServiceError('haha')
+            raise ProviderNotSupportSpeechToTextServiceError()
 
         provider_service = LLMProviderService(tenant_id, provider_name)
 
         buffer = io.BytesIO(file_content)
-        buffer.name = 'temp.wav'
+        buffer.name = 'temp.mp3'
 
         return Whisper(provider_service.provider).transcribe(buffer)