diff --git a/tools/topology/topology2/include/components/webrtc-aec.conf b/tools/topology/topology2/include/components/webrtc-aec.conf
index efb46bdbc603..f83f8cd5d25e 100644
--- a/tools/topology/topology2/include/components/webrtc-aec.conf
+++ b/tools/topology/topology2/include/components/webrtc-aec.conf
@@ -100,9 +100,13 @@ Class.Widget."webrtc-aec" {
 		}
 	}
 
-	# 4 input formats: pin0 (mic) S16/S32 + pin1 (ref) S16/S32
-	num_input_audio_formats 4
-	num_output_audio_formats 2
+	# pin0 is the microphone and pin1 is the echo reference. The module has multiple
+	# input pins, each pin must have a single format since the formats of the pins
+	# cannot be selected at runtime. The output uses the sample format of pin0.
+	# Override the formats in the widget object for S32 (pin0 and output) or for a
+	# different channel count.
+	num_input_audio_formats 2
+	num_output_audio_formats 1
 
 	Object.Base.input_audio_format [
 		# Pin 0 — microphone S16
@@ -112,13 +116,6 @@ Class.Widget."webrtc-aec" {
 			in_valid_bit_depth	16
 			ibs "$[(($in_channels * ($[($in_rate + 999)] / 1000)) * ($in_bit_depth / 8)) * $WEBRTC_AEC_PERIOD_MS]"
 		}
-		# Pin 0 — microphone S32
-		{
-			input_pin_index		0
-			in_bit_depth		32
-			in_valid_bit_depth	32
-			ibs "$[(($in_channels * ($[($in_rate + 999)] / 1000)) * ($in_bit_depth / 8)) * $WEBRTC_AEC_PERIOD_MS]"
-		}
 		# Pin 1 — echo reference S16
 		{
 			input_pin_index		1
@@ -126,13 +123,6 @@ Class.Widget."webrtc-aec" {
 			in_valid_bit_depth	16
 			ibs "$[(($in_channels * ($[($in_rate + 999)] / 1000)) * ($in_bit_depth / 8)) * $WEBRTC_AEC_PERIOD_MS]"
 		}
-		# Pin 1 — echo reference S32
-		{
-			input_pin_index		1
-			in_bit_depth		32
-			in_valid_bit_depth	32
-			ibs "$[(($in_channels * ($[($in_rate + 999)] / 1000)) * ($in_bit_depth / 8)) * $WEBRTC_AEC_PERIOD_MS]"
-		}
 	]
 
 	Object.Base.output_audio_format [
@@ -142,12 +132,6 @@ Class.Widget."webrtc-aec" {
 			out_valid_bit_depth	16
 			obs "$[(($out_channels * ($[($out_rate + 999)] / 1000)) * ($out_bit_depth / 8)) * $WEBRTC_AEC_PERIOD_MS]"
 		}
-		# S32 output
-		{
-			out_bit_depth		32
-			out_valid_bit_depth	32
-			obs "$[(($out_channels * ($[($out_rate + 999)] / 1000)) * ($out_bit_depth / 8)) * $WEBRTC_AEC_PERIOD_MS]"
-		}
 	]
 
 	# UUID: e5da7b5b-133a-ba46-b517651d6300bb83