diff --git a/server/voice_changer/RVC/pipeline/Pipeline.py b/server/voice_changer/RVC/pipeline/Pipeline.py
index 8c4364e5..14584699 100644
--- a/server/voice_changer/RVC/pipeline/Pipeline.py
+++ b/server/voice_changer/RVC/pipeline/Pipeline.py
@@ -146,11 +146,16 @@ class Pipeline(object):
             # D, I = self.index.search(npy, 1)
             # npy = self.feature[I.squeeze()]
 
-            score, ix = self.index.search(npy, k=8)
-            weight = np.square(1 / score)
-            weight /= weight.sum(axis=1, keepdims=True)
-
-            npy = np.sum(self.big_npy[ix] * np.expand_dims(weight, axis=2), axis=1)
+            # TODO: kは調整できるようにする
+            k = 1
+            if k == 1:
+                _, ix = self.index.search(npy, 1)
+                npy = self.big_npy[ix.squeeze()]               
+            else:
+                score, ix = self.index.search(npy, k=8)
+                weight = np.square(1 / score)
+                weight /= weight.sum(axis=1, keepdims=True)
+                npy = np.sum(self.big_npy[ix] * np.expand_dims(weight, axis=2), axis=1)
 
             if self.isHalf is True:
                 npy = npy.astype("float16")