fix: mpv in verify_sync

verify_sync.py

@@ -22,7 +22,11 @@ Usage:
 """
 
 from __future__ import annotations
-import os, sys, math, argparse, subprocess, json, shutil, threading, tempfile, warnings, signal
+import os, sys, math, argparse, subprocess, json, shutil, threading, tempfile, warnings, signal, locale
+
+os.environ["LC_NUMERIC"] = "C"
+locale.setlocale(locale.LC_NUMERIC, "C")
+
 import numpy as np
 
 warnings.filterwarnings("ignore", category=RuntimeWarning, module="pyqtgraph")