diff --git a/examples/api/main.py b/examples/api/main.py
index a1bb568f9..c213735b6 100644
--- a/examples/api/main.py
+++ b/examples/api/main.py
@@ -17,7 +17,7 @@
 
 import ChatTTS
 
-from tools.audio import wav_arr_to_mp3_view
+from tools.audio import pcm_arr_to_mp3_view
 from tools.logger import get_logger
 import torch
 
@@ -101,7 +101,7 @@ async def generate_voice(params: ChatTTSParams):
         buf, "a", compression=zipfile.ZIP_DEFLATED, allowZip64=False
     ) as f:
         for idx, wav in enumerate(wavs):
-            f.writestr(f"{idx}.mp3", wav_arr_to_mp3_view(wav))
+            f.writestr(f"{idx}.mp3", pcm_arr_to_mp3_view(wav))
     logger.info("Audio generation successful.")
     buf.seek(0)
 
diff --git a/examples/cmd/run.py b/examples/cmd/run.py
index b9e82b09d..8a2bb68b1 100644
--- a/examples/cmd/run.py
+++ b/examples/cmd/run.py
@@ -13,14 +13,14 @@
 
 import ChatTTS
 
-from tools.audio import wav_arr_to_mp3_view
+from tools.audio import pcm_arr_to_mp3_view
 from tools.logger import get_logger
 
 logger = get_logger("Command")
 
 
 def save_mp3_file(wav, index):
-    data = wav_arr_to_mp3_view(wav)
+    data = pcm_arr_to_mp3_view(wav)
     mp3_filename = f"output_audio_{index}.mp3"
     with open(mp3_filename, "wb") as f:
         f.write(data)
diff --git a/examples/web/funcs.py b/examples/web/funcs.py
index c173b6272..52a569f74 100644
--- a/examples/web/funcs.py
+++ b/examples/web/funcs.py
@@ -4,7 +4,6 @@
 from time import sleep
 
 import gradio as gr
-import numpy as np
 
 from tools.audio import float_to_int16, has_ffmpeg_installed
 from tools.logger import get_logger
diff --git a/examples/web/webui.py b/examples/web/webui.py
index 800618a52..f8863a449 100644
--- a/examples/web/webui.py
+++ b/examples/web/webui.py
@@ -155,6 +155,9 @@ def make_audio(autoplay, stream):
                 streaming=stream,
                 interactive=False,
                 show_label=True,
+                waveform_options=gr.WaveformOptions(
+                    sample_rate=24000,
+                ),
             )
             generate_button.click(
                 fn=set_buttons_before_generate,
diff --git a/tools/audio/__init__.py b/tools/audio/__init__.py
index f9c785735..5b9f03bc4 100644
--- a/tools/audio/__init__.py
+++ b/tools/audio/__init__.py
@@ -1,3 +1,3 @@
-from .mp3 import wav_arr_to_mp3_view
+from .pcm import pcm_arr_to_mp3_view
 from .ffmpeg import has_ffmpeg_installed
 from .np import float_to_int16
diff --git a/tools/audio/mp3.py b/tools/audio/pcm.py
similarity index 91%
rename from tools/audio/mp3.py
rename to tools/audio/pcm.py
index f08793cc1..0b1927591 100644
--- a/tools/audio/mp3.py
+++ b/tools/audio/pcm.py
@@ -7,7 +7,7 @@
 from .av import wav2
 
 
-def wav_arr_to_mp3_view(wav: np.ndarray):
+def pcm_arr_to_mp3_view(wav: np.ndarray):
     buf = BytesIO()
     with wave.open(buf, "wb") as wf:
         wf.setnchannels(1)  # Mono channel