transcriptify

Pluggable, async-first transcription library for Python. Provides a unified interface over transcription backends (currently OpenAI Whisper / GPT-4o) with swappable audio sources (files, raw bytes, microphone).

Installation

pip install transcriptify

Optional dependencies

Quickstart

Transcribe a file

import asyncio
from transcriptify import OpenAIWhisper
from transcriptify.audio import FileAudioDevice

async def main():
    whisper = OpenAIWhisper()  # uses OPENAI_API_KEY env var

    async with FileAudioDevice("recording.wav") as device:
        audio = await device.read()
        result = await whisper.transcribe(audio)

    print(result.text)

asyncio.run(main())

Transcribe from microphone

Requires the mic extra (pip install transcriptify[mic]).

import asyncio
from transcriptify import OpenAIWhisper
from transcriptify.audio import MicrophoneAudioDevice

async def main():
    whisper = OpenAIWhisper()

    async with MicrophoneAudioDevice(sample_rate=16_000) as mic:
        audio = await mic.record(seconds=5)

    result = await whisper.transcribe(audio)
    print(result.text)

asyncio.run(main())

Streaming transcription

Models that support streaming (gpt-4o-transcribe, gpt-4o-mini-transcribe, gpt-4o-transcribe-diarize) yield incremental deltas:

async with FileAudioDevice("recording.wav") as device:
    audio = await device.read()
    async for delta in whisper.stream(audio):
        print(delta.text, end="", flush=True)

Transcribe raw bytes

from transcriptify.audio import BytesAudioDevice

device = BytesAudioDevice(wav_bytes, sample_rate=16_000, encoding="wav")
audio = await device.read()
result = await whisper.transcribe(audio)

OpenAIWhisper configuration

from transcriptify import OpenAIWhisper, WhisperModel, ResponseFormat

whisper = OpenAIWhisper(
    api_key="sk-...",                            # or set OPENAI_API_KEY env var
    model=WhisperModel.GPT_4O_TRANSCRIBE,        # default
    language="en",                               # optional ISO-639-1
    response_format=ResponseFormat.VERBOSE_JSON,  # json, text, srt, vtt, verbose_json, diarized_json
    prompt="Technical discussion about Python",   # optional context hint
)

Available models

Azure OpenAI

whisper = OpenAIWhisper(
    azure_endpoint="https://your-resource.openai.azure.com",
    azure_deployment="your-whisper-deployment",
    api_key="your-azure-key",
    api_version="2024-06-01",  # optional, this is the default
)

Audio devices

Implementing custom adapters

Custom transcription backend

from transcriptify import Transcriber, AudioChunk, TranscriptionResult

class MyTranscriber(Transcriber):
    async def transcribe(self, audio: AudioChunk) -> TranscriptionResult:
        text = await my_backend.recognize(audio.data)
        return TranscriptionResult(text=text)

Custom audio device

from transcriptify import AudioDevice, AudioChunk
from collections.abc import AsyncIterator

class MyAudioDevice(AudioDevice):
    async def read(self) -> AudioChunk:
        data = await my_source.get_audio()
        return AudioChunk(data=data, sample_rate=16_000)

    async def stream(self) -> AsyncIterator[AudioChunk]:
        async for frame in my_source.frames():
            yield AudioChunk(data=frame, sample_rate=16_000)

Requirements

• Python >= 3.11
• pydantic >= 2.12.5
• openai >= 2.29.0
• python-dotenv >= 1.2.2