| Top |  |  |  |  | 
| gfloat | lower-frequency | Read / Write | 
| gfloat | upper-frequency | Read / Write | 
| GstAudioWSincBandMode | mode | Read / Write | 
| GstAudioWSincBandWindow | window | Read / Write | 
| gint | length | Read / Write | 
    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstBaseTransform
                    ╰── GstAudioFilter
                        ╰── GstAudioFXBaseFIRFilter
                            ╰── GstAudioWSincBand
Attenuates all frequencies outside (bandpass) or inside (bandreject) of a frequency band. The length parameter controls the rolloff, the window parameter controls rolloff and stopband attenuation. The Hamming window provides a faster rolloff but a bit worse stopband attenuation, the other way around for the Blackman window.
This element has the advantage over the Chebyshev bandpass and bandreject filter that it has a much better rolloff when using a larger kernel size and almost linear phase. The only disadvantage is the much slower execution time with larger kernels.
| 1 2 3 | gst-launch-1.0 audiotestsrc freq=1500 ! audioconvert ! audiowsincband mode=band-pass lower-frequency=3000 upper-frequency=10000 length=501 window=blackman ! audioconvert ! alsasink gst-launch-1.0 filesrc location="melo1.ogg" ! oggdemux ! vorbisdec ! audioconvert ! audiowsincband mode=band-reject lower-frequency=59 upper-frequency=61 length=10001 window=hamming ! audioconvert ! alsasink gst-launch-1.0 audiotestsrc wave=white-noise ! audioconvert ! audiowsincband mode=band-pass lower-frequency=1000 upper-frequency=2000 length=31 ! audioconvert ! alsasink | 
| plugin | audiofx | 
| author | Thomas Vander Stichele <thomas at apestaart dot org>, Steven W. Smith, Dreamlab Technologies Ltd. <mathis.hofer@dreamlab.net>, Sebastian Dröge <sebastian.droege@collabora.co.uk> | 
| class | Filter/Effect/Audio | 
| name | sink | 
| direction | sink | 
| presence | always | 
| details | audio/x-raw, format=(string){ F32LE, F64LE }, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], layout=(string)interleaved | 
| name | src | 
| direction | source | 
| presence | always | 
| details | audio/x-raw, format=(string){ F32LE, F64LE }, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], layout=(string)interleaved | 
“lower-frequency” property  “lower-frequency”          gfloat
Cut-off lower frequency (Hz).
Flags: Read / Write
Allowed values: [0,100000]
Default value: 0
“upper-frequency” property  “upper-frequency”          gfloat
Cut-off upper frequency (Hz).
Flags: Read / Write
Allowed values: [0,100000]
Default value: 0
“mode” property  “mode”                     GstAudioWSincBandMode
Band pass or band reject mode.
Flags: Read / Write
Default value: Band pass (default)
“window” property  “window”                   GstAudioWSincBandWindow
Window function to use.
Flags: Read / Write
Default value: Hamming window (default)