You work at an organization that maintains a cloud-based communication platform that integrates conventional chat, voice, and video conferencing into one platform. The audio recordings of voice calls on this platform are stored in Cloud Storage. These recordings have an 8 kHz sample rate and typically exceed one minute in duration. The organization aims to introduce a new feature that will automatically transcribe these voice call recordings into text. This transcription will be used in future applications like call summarization and sentiment analysis. What is the best way to implement the voice call transcription feature while adhering to Google-recommended best practices?