Gstreamer Audio Volume | Audio-Digital.net

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volume - GStreamer

https://gstreamer.freedesktop.org/documentation/volume/index.html

GStreamer Plugins Application manual Tutorials volume The volume element changes the volume of the audio data. Example launch line gst-launch-1.0 -v -m audiotestsrc ! volume volume=0.5 ! level ! fakesink silent=TRUE This pipeline shows that the level of audiotestsrc has been halved (peak values are around -6 dB and RMS around -9 dB) compared to

GstStreamVolume - GStreamer: open source multimedia …

https://gstreamer.freedesktop.org/documentation/audio/gststreamvolume.html

For this the "volume" GObject property can be used or the helper functions gst_stream_volume_set_volume and gst_stream_volume_get_volume. This volume is always a linear factor, i.e. 0.0 is muted 1.0 is 100%. For showing the volume in a GUI it might make sense to convert it to a different format by using gst_stream_volume_convert_volume.

rgvolume - GStreamer

https://gstreamer.freedesktop.org/documentation/replaygain/rgvolume.html

GStreamer Plugins Application manual Tutorials rgvolume This element applies volume changes to streams as lined out in the proposed ReplayGain standard. It interprets the ReplayGain meta data tags and carries out the adjustment (by using a volume element internally). The relevant tags are: GST_TAG_TRACK_GAIN GST_TAG_TRACK_PEAK GST_TAG_ALBUM_GAIN

gstreamer : audiosink to output stream of integers ...

https://stackoverflow.com/questions/19454832/gstreamer-audiosink-to-output-stream-of-integers-representing-volume-levels

I need a gstreamer audio sink that outputs integers that represent volume level of an audio stream. The sampling rate need not be the same as the incoming audio stream, it can be much lower, ex.: one value per second would be sufficient.

audiomixer - GStreamer

https://gstreamer.freedesktop.org/documentation/audiomixer/audiomixer.html

The input pads are from a GstPad subclass and have additional properties to mute each pad individually and set the volume: "mute": Whether to mute the pad or not (#gboolean) "volume": The volume of the pad, between 0.0 and 10.0 (#gdouble) Example launch line

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