diff --git a/drivers/bl702_driver/hal_drv/default_config/i2s_config.h b/drivers/bl702_driver/hal_drv/default_config/i2s_config.h
index d214b87b..44691dc7 100644
--- a/drivers/bl702_driver/hal_drv/default_config/i2s_config.h
+++ b/drivers/bl702_driver/hal_drv/default_config/i2s_config.h
@@ -3,7 +3,7 @@
 
 #define I2S_ADUIO_PLL_DEFAULT AUDIO_PLL_12288000_HZ
 #define I2S_DATA_ENDIAN       I2S_DATA_ENDIAN_MSB
-#define I2S_MONO_CHANNEL      I2S_RX_MONO_MODE_LEFT_CHANNEL
+#define I2S_MONO_CHANNEL      I2S_RX_MONO_MODE_RIGHT_CHANNEL
 #define I2S_LR_EXCHANGE       DISABLE /*The position of L/R channel data within each entry is exchanged if enabled*/
 #define I2S_FS_INVERT         DISABLE
 #define I2S_BCLK_INVERT       DISABLE