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diff --git a/src/lib/audio_content.h b/src/lib/audio_content.h
index 67183d0a45b517887ea0f4625894f2adaa1dfc33..963f759e82fd68e260ab5a7f7f4d16566573cf82 100644 (file)
--- a/src/lib/audio_content.h
+++ b/src/lib/audio_content.h
@@ -61,7 +61,10 @@ public:
        int resampled_frame_rate (std::shared_ptr<const Film> film) const;
        std::vector<NamedChannel> channel_names () const;
 
-       void set_gain (double);
+       /** Set gain in dB.
+        *  @param double g New gain in dB.
+        */
+       void set_gain (double g);
        void set_delay (int);
 
        double gain () const {