AssemblyAI builds Speech AI models for tasks like speech-to-text, speaker diarization, speech summarization, and more. AssemblyAI’s Speech AI models include accurate speech-to-text for voice data (such as calls, virtual meetings, and podcasts), speaker detection, sentiment analysis, chapter detection, PII redaction.

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Installation and Setup

Get your API key. Install the assemblyai package. 
pip install -U assemblyai

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Document Loader

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AssemblyAI Audio Transcript

The AssemblyAIAudioTranscriptLoader transcribes audio files with the AssemblyAI API and loads the transcribed text into documents. See a usage example. 
from langchain_community.document_loaders import AssemblyAIAudioTranscriptLoader

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AssemblyAI Audio Loader By Id

The AssemblyAIAudioLoaderById uses the AssemblyAI API to get an existing transcription and loads the transcribed text into one or more Documents, depending on the specified format. 
from langchain_community.document_loaders import AssemblyAIAudioLoaderById