diff --git a/internal/ffmpeg/device/device_linux.go b/internal/ffmpeg/device/device_linux.go
index 46d869c1..962b5f47 100644
--- a/internal/ffmpeg/device/device_linux.go
+++ b/internal/ffmpeg/device/device_linux.go
@@ -88,7 +88,7 @@ func initDevices() {
 	if err == nil {
 		stream := api.Stream{
 			Name: "ALSA default",
-			URL:  "ffmpeg:device?audio=default#audio=opus",
+			URL:  "ffmpeg:device?audio=default&channels=1&sample_rate=16000&#audio=opus",
 		}
 
 		audios = append(audios, "default")