语音合成

import os
from pathlib import Path
from openai import OpenAI, APIConnectionError, APIStatusError

with OpenAI(base_url=os.environ["API_BASE_URL"].rstrip("/"),
            api_key=os.environ["API_KEY"], timeout=120.0, max_retries=0) as client:
    try:
        with client.audio.speech.with_streaming_response.create(
            model=os.environ["API_MODEL"], voice=os.environ["API_VOICE"],
            input="Welcome to our application.", response_format="mp3",
        ) as response:
            media_type = response.headers.get("content-type", "").split(";")[0].lower()
            if not (media_type.startswith("audio/") or media_type == "application/octet-stream"):
                raise ValueError("Expected audio bytes.")
            audio = bytearray()
            for chunk in response.iter_bytes():
                audio.extend(chunk)
                if len(audio) > 16 * 1024 * 1024:
                    raise ValueError("Example output exceeds 16 MiB.")
            if not audio:
                raise ValueError("Empty audio.")
            with Path("speech.mp3").open("xb") as target:
                target.write(audio)
            print("Saved speech.mp3")
    except APIStatusError as error:
        raise SystemExit(f"Request failed (HTTP {error.status_code}). Check the request logs.")
    except APIConnectionError:
        raise SystemExit("Connection failed; check before resubmitting speech.")
    except (ValueError, OSError):
        raise SystemExit("Cannot save speech. Check the content type, size, and output file.")