| Top |  |
 |
 |
 |
Object Hierarchy
GObject ╰── GInitiallyUnowned ╰── GstObject ╰── GstElement ╰── GstBaseTransform ╰── GstAudioFilter ╰── GstAudioEcho
Description
audioecho adds an echo or (simple) reverb effect to an audio stream. The echo delay, intensity and the percentage of feedback can be configured.
For getting an echo effect you have to set the delay to a larger value, for example 200ms and more. Everything below will result in a simple reverb effect, which results in a slightly metallic sound.
Use the max-delay property to set the maximum amount of delay that will be used. This can only be set before going to the PAUSED or PLAYING state and will be set to the current delay by default.
Example launch line
1 2 |
gst-launch-1.0 autoaudiosrc ! audioconvert ! audioecho delay=500000000 intensity=0.6 feedback=0.4 ! audioconvert ! autoaudiosink gst-launch-1.0 filesrc location="melo1.ogg" ! decodebin ! audioconvert ! audioecho delay=50000000 intensity=0.6 feedback=0.4 ! audioconvert ! autoaudiosink |
Synopsis
Element Information
plugin |
audiofx |
author |
Sebastian Dröge <sebastian.droege@collabora.co.uk> |
class |
Filter/Effect/Audio |
Element Pads
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 |
Property Details
The “delay” property
“delay” guint64
Delay of the echo in nanoseconds.
Flags: Read / Write
Allowed values: >= 1
Default value: 1
The “feedback” property
“feedback” gfloat
Amount of feedback.
Flags: Read / Write
Allowed values: [0,1]
Default value: 0
The “intensity” property
“intensity” gfloat
Intensity of the echo.
Flags: Read / Write
Allowed values: [0,1]
Default value: 0
The “max-delay” property
“max-delay” guint64
Maximum delay of the echo in nanoseconds (can't be changed in PLAYING or PAUSED state).
Flags: Read / Write
Allowed values: >= 1
Default value: 1