Add missing EQ.dsp.

audio/filters/EQ.dsp

@@ -0,0 +1,29 @@
+filters = 1
+filter0 = eq
+
+# Defaults
+
+# Beta factor for Kaiser window.
+# Lower values will allow better frequency resolution, but more ripple.
+# eq_window_beta = 4.0
+
+# The block size on which FFT is done.
+# Too high value requires more processing as well as longer latency but
+# allows finer-grained control over the spectrum.
+# eq_block_size_log2 = 8
+
+# An array of which frequencies to control.
+# You can create an arbitrary amount of these sampling points.
+# The EQ will try to create a frequency response which fits well to these points.
+# The filter response is linearly interpolated between sampling points here.
+#
+# It is implied that 0 Hz (DC) and Nyquist have predefined gains of 0 dB which are interpolated against.
+# If you want a "peak" in the spectrum or similar, you have to define close points to say, 0 dB.
+#
+# E.g.: A boost of 3 dB at 1 kHz can be expressed as.
+# eq_frequencies = "500 1000 2000"
+# eq_gains = "0 3 0"
+# Due to frequency domain smearing, you will not get exactly +3 dB at 1 kHz.
+
+# By default, this filter has a flat frequency response.
+