X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;f=m4%2Fgengetopt%2Famp_filter.m4;fp=m4%2Fgengetopt%2Famp_filter.m4;h=865df3ac4048b330daf9055ffb47c2b1a2999eb3;hb=2829202e393e4b0095d62739910ae56f04e83326;hp=0000000000000000000000000000000000000000;hpb=66b0f375732897cb76cfbefbb03ed951c4ed24ba;p=paraslash.git

diff --git a/m4/gengetopt/amp_filter.m4 b/m4/gengetopt/amp_filter.m4
new file mode 100644
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+++ b/m4/gengetopt/amp_filter.m4
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+option "amp" a
+#~~~~~~~~~~~~~
+"amplification value"
+int typestr="number"
+default="32"
+optional
+details="
+	The amplification value determines the scaling factor by
+	which the amplitude of the audio stream is multiplied. The
+	formula for the scaling factor is
+
+		factor = 1 + amp / 64.
+
+	For example, an amplifiction value of zero results in a
+	scaling factor of one while an amplification value of 64
+	means to double the volume.
+"