diff --git a/hifigan/hub/__init__.py b/hifigan/hub/__init__.py
index d9f10bb..85205f3 100644
--- a/hifigan/hub/__init__.py
+++ b/hifigan/hub/__init__.py
@@ -9,7 +9,7 @@ def hifigan_48k(
     progress: bool = True,
 ) -> Generator:
     hifigan = Generator(
-        initial_channel=256,
+        initial_channel=128,
         resblock="1",
         resblock_kernel_sizes=[3,7,11],
         resblock_dilation_sizes=[
diff --git a/test.py b/test.py
index b990595..85b0408 100644
--- a/test.py
+++ b/test.py
@@ -35,7 +35,7 @@ def load_remote():
 wav, sr = torchaudio.load("zszy_48k.wav")
 assert sr == 48000
 
-mel = mel_spectrogram_torch(wav, 2048, 256, 48000, 512, 2048, 0, None, False)
+mel = mel_spectrogram_torch(wav, 2048, 128, 48000, 512, 2048, 0, None, False)
 
 mel = mel.to(device)
 out = hifigan(mel)