Files
WhisperLiveKit/whisperlivekit/warmup.py

62 lines
2.1 KiB
Python

import logging
logger = logging.getLogger(__name__)
def load_file(warmup_file=None, timeout=5):
import os
import tempfile
import librosa
if warmup_file is None:
# Download JFK sample if not already present
jfk_url = "https://github.com/ggerganov/whisper.cpp/raw/master/samples/jfk.wav"
temp_dir = tempfile.gettempdir()
warmup_file = os.path.join(temp_dir, "whisper_warmup_jfk.wav")
if not os.path.exists(warmup_file):
logger.debug(f"Downloading warmup file from {jfk_url}")
print(f"Downloading warmup file from {jfk_url}")
import time
import urllib.request
import urllib.error
import socket
original_timeout = socket.getdefaulttimeout()
socket.setdefaulttimeout(timeout)
start_time = time.time()
try:
urllib.request.urlretrieve(jfk_url, warmup_file)
logger.debug(f"Download successful in {time.time() - start_time:.2f}s")
except (urllib.error.URLError, socket.timeout) as e:
logger.warning(f"Download failed: {e}. Proceeding without warmup.")
return None
finally:
socket.setdefaulttimeout(original_timeout)
elif not warmup_file:
return None
if not warmup_file or not os.path.exists(warmup_file) or os.path.getsize(warmup_file) == 0:
logger.warning(f"Warmup file {warmup_file} invalid or missing.")
return None
try:
audio, sr = librosa.load(warmup_file, sr=16000)
except Exception as e:
logger.warning(f"Failed to load audio file: {e}")
return None
return audio
def warmup_asr(asr, warmup_file=None, timeout=5):
"""
Warmup the ASR model by transcribing a short audio file.
"""
audio = load_file(warmup_file=None, timeout=5)
asr.transcribe(audio)
logger.info("ASR model is warmed up")
def warmup_online(online, warmup_file=None, timeout=5):
audio = load_file(warmup_file=None, timeout=5)
online.warmup(audio)
logger.warning("ASR is warmed up")