Fix custom stresses.

app.py

@@ -10,7 +10,7 @@ import torch
 from ipa_uk import ipa
 from unicodedata import normalize
 from styletts2_inference.models import StyleTTS2
-from ukrainian_word_stress import Stressifier
+from ukrainian_word_stress import Stressifier, StressSymbol
 stressify = Stressifier()
 
 device = 'cuda' if torch.cuda.is_available() else 'cpu'
@@ -106,7 +106,7 @@ def synthesize(model_name, text, speed, voice_name = None, progress=gr.Progress(
         t = t.strip()
         t = t.replace('"', '')
         if t:
-            t = t.replace('+', 'ˈ')
+            t = t.replace('+', StressSymbol.CombiningAcuteAccent)
             t = normalize('NFKC', t)
 
             t = re.sub(r'[᠆‐‑‒–—―⁻₋−⸺⸻]', '-', t)