diff --git a/effect_controler.v b/effect_controler.v
new file mode 100644
index 0000000..1da27c5
--- /dev/null
+++ b/effect_controler.v
@@ -0,0 +1,14 @@
+module effect_controler #( parameter
+    d_width = 24                // data width
+)(
+//    input clk,
+    input [d_width-1: 0] i_l_data,
+    input [d_width-1: 0] i_r_data,
+    output [d_width-1: 0] o_l_data,
+    output [d_width-1: 0] o_r_data
+);
+
+assign o_l_data = i_l_data;
+assign o_r_data = i_r_data;
+
+endmodule
\ No newline at end of file
diff --git a/top.v b/top.v
index 4811d61..c7ebea1 100644
--- a/top.v
+++ b/top.v
@@ -36,6 +36,8 @@ wire word_select;
 wire reset_n;
 wire [d_width-1: 0] r_data_tx;
 wire [d_width-1: 0] l_data_tx;
+wire [d_width-1: 0] r_data_rx;
+wire [d_width-1: 0] l_data_rx;
 
 wire w_sd_tx;               //internal wire
 
@@ -57,12 +59,23 @@ i2s_transceiver  #(
     .mclk(master_clk),      //master clock
     .sclk(serial_clk),      //serial clock (or bit clock)
     .ws(word_select),       //word select (or left-right clock)
-    .sd_rx(ad_sdout),        //serial data transmit
-    .sd_tx(w_sd_tx),       //serial data receive
+    .sd_rx(ad_sdout),       //serial data transmit
+    .sd_tx(w_sd_tx),        //serial data receive
     .l_data_tx(l_data_tx),  //left channel data to transmit
     .r_data_tx(r_data_tx),  //right channel data to transmit
-    .l_data_rx(l_data_tx),  //left channel data received
-    .r_data_rx(r_data_tx)   //right channel data received
+    .l_data_rx(l_data_rx),  //left channel data received
+    .r_data_rx(r_data_rx)   //right channel data received
+);
+
+//passing data to effect controler
+effect_controler #(
+    .d_width(d_width)                       //data width
+) effect_conroler (
+//  .clk(clk),
+    .i_l_data(l_data_rx),               //left channel data received         
+    .i_r_data(r_data_rx),               //right channel data received
+    .o_l_data(l_data_tx),               //left channel data to transmit
+    .o_r_data(r_data_tx)                //right channel data to transmit
 );
 
 //debounce reset button