+void MainWindow::gain_staging_knob_changed(int value)
+{
+ ui->gainstaging_auto_checkbox->setCheckState(Qt::Unchecked);
+
+ float gain_db = value * 0.1f;
+ global_mixer->set_gain_staging_db(gain_db);
+
+ // The label will be updated by the audio level callback.
+}
+