audioecho

audioecho — Adds an echo or reverb effect to an audio stream

Synopsis

                    GstAudioEcho;

Object Hierarchy

  GObject
   +----GstObject
         +----GstElement
               +----GstBaseTransform
                     +----GstAudioFilter
                           +----GstAudioEcho

Properties

  "delay"                    guint64               : Read / Write
  "feedback"                 gfloat                : Read / Write
  "intensity"                gfloat                : Read / Write
  "max-delay"                guint64               : Read / Write

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

gst-launch filesrc location="melo1.ogg" ! audioconvert ! audioecho delay=500000000 intensity=0.6 feedback=0.4 ! audioconvert ! autoaudiosink
gst-launch filesrc location="melo1.ogg" ! decodebin ! audioconvert ! audioecho delay=50000000 intensity=0.6 feedback=0.4 ! audioconvert ! autoaudiosink

Details

GstAudioEcho

typedef struct _GstAudioEcho GstAudioEcho;

Property Details

The `"delay"` property

  "delay"                    guint64               : Read / Write

Delay of the echo in nanoseconds.

Allowed values: >= 1

Default value: 1

The `"feedback"` property

  "feedback"                 gfloat                : Read / Write

Amount of feedback.

Allowed values: [0,1]

Default value: 0

The `"intensity"` property

  "intensity"                gfloat                : Read / Write

Intensity of the echo.