[fix](trx-backend-soapysdr): prevent double agc on mono wfm

Co-authored-by: Codex <codex@openai.com> Signed-off-by: Stan Grams <sjg@haxx.space>
2026-02-28 20:30:12 +01:00
parent 244f91d97b
commit 3d8fd32488
1 changed files with 10 additions and 2 deletions
@@ -654,8 +654,16 @@ impl ChannelDsp {
        // AGC is applied to WFM output too so all modes share the same target level.
        let audio = if let Some(decoder) = self.wfm_decoder.as_mut() {
            let mut out = decoder.process_iq(&decimated);
-            for s in &mut out {
-                *s = self.audio_agc.process(*s);
+            if !self.wfm_stereo && self.output_channels >= 2 {
+                for pair in out.chunks_exact_mut(2) {
+                    let mono = self.audio_agc.process(pair[0]);
+                    pair[0] = mono;
+                    pair[1] = mono;
+                }
+            } else {
+                for s in &mut out {
+                    *s = self.audio_agc.process(*s);
+                }
            }
            out
        } else {