remove Session::get_nth_stripable.cc

[ardour.git] / libs / ardour / ardour / dsp_filter.h

diff --git a/libs/ardour/ardour/dsp_filter.h b/libs/ardour/ardour/dsp_filter.h
index 1ffccd331982e73c2f929060967ddb934c7dd723..994d8725ea418576c6c3edacfacd779f49f8dcb1 100644 (file)
--- a/libs/ardour/ardour/dsp_filter.h
+++ b/libs/ardour/ardour/dsp_filter.h
@@ -193,7 +193,7 @@ namespace ARDOUR { namespace DSP {
        };
 
        /** Biquad Filter */
-       class LIBARDOUR_API BiQuad {
+       class LIBARDOUR_API Biquad {
                public:
                        enum Type {
                                LowPass,
@@ -211,8 +211,8 @@ namespace ARDOUR { namespace DSP {
                         *
                         * @param samplerate Samplerate
                         */
-                       BiQuad (double samplerate);
-                       BiQuad (const BiQuad &other);
+                       Biquad (double samplerate);
+                       Biquad (const Biquad &other);
 
                        /** process audio data
                         *
@@ -229,9 +229,9 @@ namespace ARDOUR { namespace DSP {
                         */
                        void compute (Type t, double freq, double Q, double gain);
 
-                       /** filter transfer function (for spectrum visualization)
+                       /** filter transfer function (filter response for spectrum visualization)
                         * @param freq frequency
-                        * @return gain at given frequency in dB
+                        * @return gain at given frequency in dB (clamped to -120..+120)
                         */
                        float dB_at_freq (float freq) const;