diff --git a/asound_2mic.conf b/asound_2mic.conf
index 4b13cb1..2e26f0d 100644
--- a/asound_2mic.conf
+++ b/asound_2mic.conf
@@ -1,6 +1,10 @@
 # The IPC key of dmix or dsnoop plugin must be unique
 # If 555555 or 666666 is used by other processes, use another one
 
+
+# use samplerate to resample as speexdsp resample is bad
+defaults.pcm.rate_converter "samplerate"
+
 pcm.!default {
     type asym
     playback.pcm "playback"
@@ -19,14 +23,14 @@ pcm.capture {
 
 pcm.dmixed {
     type dmix
-    slave.pcm "hw:0,0"
+    slave.pcm "hw:seeed2micvoicec"
     ipc_key 555555 
 }
 
 pcm.array {
     type dsnoop
     slave {
-        pcm "hw:0,0"
+        pcm "hw:seeed2micvoicec"
         channels 2
     }
     ipc_key 666666
diff --git a/asound_4mic.conf b/asound_4mic.conf
index d3cb82c..12d2ab8 100644
--- a/asound_4mic.conf
+++ b/asound_4mic.conf
@@ -1,6 +1,9 @@
 # The IPC key of dmix or dsnoop plugin must be unique
 # If 555555 or 666666 is used by other processes, use another one
 
+# use samplerate to resample as speexdsp resample is bad
+defaults.pcm.rate_converter "samplerate"
+
 pcm.!default {
     type asym
     playback.pcm "playback"
@@ -9,22 +12,22 @@ pcm.!default {
 
 pcm.playback {
     type plug
-    slave.pcm "hw:0,0"
+    slave.pcm "hw:ALSA"
 }
 
-pcm.dmixed {
-    type dmix
-    slave.pcm "hw:0,0"
-    ipc_key 555555 
-}
+# pcm.dmixed {
+#     type dmix
+#     slave.pcm "hw:0,0"
+#     ipc_key 555555 
+# }
 
 pcm.ac108 {
     type plug
-    slave.pcm "multiapps"
+    slave.pcm "hw:seeed4micvoicec"
 }
 
-pcm.multiapps {
-    type dsnoop
-    ac108-slavepcm "hw:1,0"
-    ipc_key 666666
-}
+# pcm.multiapps {
+#     type dsnoop
+#     ac108-slavepcm "hw:1,0"
+#     ipc_key 666666
+# }
diff --git a/asound_6mic.conf b/asound_6mic.conf
index 180aac0..9d2a19a 100644
--- a/asound_6mic.conf
+++ b/asound_6mic.conf
@@ -1,68 +1,56 @@
 # The IPC key of dmix or dsnoop plugin must be unique
 # If 555555 or 666666 is used by other processes, use another one
 
+# use samplerate to resample as speexdsp resample is bad
+defaults.pcm.rate_converter "samplerate"
+
 pcm.!default {
     type asym
-    playback.pcm "playback"
+    playback.pcm "ac101"
     capture.pcm "ac108"
 }
 
-pcm.playback {
-    type plug
-    slave {
-        rate 48000
-        format S32_LE
-        pcm "hw:1,0"
-    }
-}
-
-pcm.dmixed {
-    type dmix
-    slave.pcm "hw:0,0"
-    ipc_key 555555 
-}
 
 pcm.ac108 {
     type plug
-    slave.pcm "multiapps"
-}
-
-pcm.multiapps {
-    type dsnoop
     slave {
         rate 48000
         format S32_LE
-        pcm "hw:1,0"
+        pcm "hw:seeed8micvoicec"
     }
-    ipc_key 666666
 }
 
+# pcm.multiapps {
+#     type dsnoop
+#     slave {
+#         rate 48000
+#         format S32_LE
+#         pcm "hw:seeed8micvoicec"
+#     }
+#     ipc_key 666666
+# }
+
 pcm.ac101 {
 	type plug
 	slave {
 		pcm {
-			type dmix
-			ipc_key 1048576
-				slave {
-				pcm		"hw:1,0"
+			type route
+			slave {
+				pcm		"hw:seeed8micvoicec"
 				format		S32_LE
-				# rate		16000
 				channels	8
 			}
-			bindings {
-				# map 2 channels input to
-				# first 2 channels of 8 output
-				0	0
-				1	1
-				0	2
-				1	3
-				0	4
-				1	5
-				0	6
-				1	7
-			}
+			ttable.0.0 1
+			ttable.1.1 1
+			ttable.0.2 1
+			ttable.1.3 1
+			ttable.0.4 1
+			ttable.1.5 1
+			ttable.0.6 1
+			ttable.1.7 1
 		}
 		channels	2
+		rate 48000
 	}
 }