Commit 5f32a4ba authored by Sebastian Dröge's avatar Sebastian Dröge 🍵
Browse files

gst/audiofx/: Add small comparision with the windowed sinc filters in the docs.

Original commit message from CVS:
* gst/audiofx/audiochebyshevfreqband.c:
* gst/audiofx/audiochebyshevfreqlimit.c:
Add small comparision with the windowed sinc filters in the docs.
parent aba981fd
2007-08-19 Sebastian Dröge <slomo@circular-chaos.org>
* gst/audiofx/audiochebyshevfreqband.c:
* gst/audiofx/audiochebyshevfreqlimit.c:
Add small comparision with the windowed sinc filters in the docs.
2007-08-19 Sebastian Dröge <slomo@circular-chaos.org> 2007-08-19 Sebastian Dröge <slomo@circular-chaos.org>
* tests/check/elements/audiochebyshevfreqband.c: (GST_START_TEST), * tests/check/elements/audiochebyshevfreqband.c: (GST_START_TEST),
......
...@@ -42,6 +42,11 @@ ...@@ -42,6 +42,11 @@
* band. The number of poles and the ripple parameter control the rolloff. * band. The number of poles and the ripple parameter control the rolloff.
* </para> * </para>
* <para> * <para>
* This element has the advantage over the windowed sinc bandpass and bandreject filter that it is
* much faster and produces almost as good results. It's only disadvantages are the highly
* non-linear phase and the slower rolloff compared to a windowed sinc filter with a large kernel.
* </para>
* <para>
* For type 1 the ripple parameter specifies how much ripple in dB is allowed in the passband, i.e. * For type 1 the ripple parameter specifies how much ripple in dB is allowed in the passband, i.e.
* some frequencies in the passband will be amplified by that value. A higher ripple value will allow * some frequencies in the passband will be amplified by that value. A higher ripple value will allow
* a faster rolloff. * a faster rolloff.
......
...@@ -38,6 +38,11 @@ ...@@ -38,6 +38,11 @@
* cutoff frequency (high-pass). The number of poles and the ripple parameter control the rolloff. * cutoff frequency (high-pass). The number of poles and the ripple parameter control the rolloff.
* </para> * </para>
* <para> * <para>
* This element has the advantage over the windowed sinc lowpass and highpass filter that it is
* much faster and produces almost as good results. It's only disadvantages are the highly
* non-linear phase and the slower rolloff compared to a windowed sinc filter with a large kernel.
* </para>
* <para>
* For type 1 the ripple parameter specifies how much ripple in dB is allowed in the passband, i.e. * For type 1 the ripple parameter specifies how much ripple in dB is allowed in the passband, i.e.
* some frequencies in the passband will be amplified by that value. A higher ripple value will allow * some frequencies in the passband will be amplified by that value. A higher ripple value will allow
* a faster rolloff. * a faster rolloff.
......
...@@ -42,6 +42,11 @@ ...@@ -42,6 +42,11 @@
* band. The number of poles and the ripple parameter control the rolloff. * band. The number of poles and the ripple parameter control the rolloff.
* </para> * </para>
* <para> * <para>
* This element has the advantage over the windowed sinc bandpass and bandreject filter that it is
* much faster and produces almost as good results. It's only disadvantages are the highly
* non-linear phase and the slower rolloff compared to a windowed sinc filter with a large kernel.
* </para>
* <para>
* For type 1 the ripple parameter specifies how much ripple in dB is allowed in the passband, i.e. * For type 1 the ripple parameter specifies how much ripple in dB is allowed in the passband, i.e.
* some frequencies in the passband will be amplified by that value. A higher ripple value will allow * some frequencies in the passband will be amplified by that value. A higher ripple value will allow
* a faster rolloff. * a faster rolloff.
......
...@@ -38,6 +38,11 @@ ...@@ -38,6 +38,11 @@
* cutoff frequency (high-pass). The number of poles and the ripple parameter control the rolloff. * cutoff frequency (high-pass). The number of poles and the ripple parameter control the rolloff.
* </para> * </para>
* <para> * <para>
* This element has the advantage over the windowed sinc lowpass and highpass filter that it is
* much faster and produces almost as good results. It's only disadvantages are the highly
* non-linear phase and the slower rolloff compared to a windowed sinc filter with a large kernel.
* </para>
* <para>
* For type 1 the ripple parameter specifies how much ripple in dB is allowed in the passband, i.e. * For type 1 the ripple parameter specifies how much ripple in dB is allowed in the passband, i.e.
* some frequencies in the passband will be amplified by that value. A higher ripple value will allow * some frequencies in the passband will be amplified by that value. A higher ripple value will allow
* a faster rolloff. * a faster rolloff.
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment