diff --git a/audio_policy.conf b/audio_policy.conf
index 00f575f..080ecdd 100644
--- a/audio_policy.conf
+++ b/audio_policy.conf
@@ -81,8 +81,8 @@
     inputs {
       usb_device {
         sampling_rates dynamic
-        channel_masks AUDIO_CHANNEL_IN_STEREO
-        formats AUDIO_FORMAT_PCM_16_BIT
+        channel_masks dynamic
+        formats dynamic
         devices AUDIO_DEVICE_IN_USB_DEVICE
       }
     }