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audiotestsrc - GStreamer
https://gstreamer.freedesktop.org/documentation/audiotestsrc/index.html
audiotestsrc. AudioTestSrc can be used to generate basic audio signals. It support several different waveforms and allows to set the base frequency and volume. Some waveforms might use additional properties. Waveform specific notes: Gaussian white noise. This waveform produces white (zero mean) Gaussian noise.
audiotestsrc - freedesktop.org
https://www.freedesktop.org/software/gstreamer-sdk/data/docs/latest/gst-plugins-base-plugins-0.10/gst-plugins-base-plugins-audiotestsrc.html
enum GstAudioTestSrcWave. Different types of supported sound waves. white (zero mean) Gaussian noise; volume sets the standard deviation of the noise in units of the range of values of the sample type, e.g. volume=0.1 produces noise with a standard deviation of 0.1*32767=3277 with 16-bit integer samples, or 0.1*1.0=0.1 with floating-point samples.
GStreamer / [gst-devel] audiotestsrc ! ffenc_g726 ...
https://sourceforge.net/p/gstreamer/mailman/message/20785000/
New clock: GstSystemClock There is no data written to the test.726 output file. And the pipeline never exits untill I press Ctrl+C. Inorder to check whether any other adpcm encoder of ffmpeg gives the same problem I tried the following command gst-launch-0.10 -v audiotestsrc num-buffers=100 ! audio/x-raw-int,rate=8000,channels=1,depth=16,width ...
audiotestsrc - Massachusetts Institute of Technology
https://stuff.mit.edu/afs/athena/system/amd64_deb50/os/usr/share/gtk-doc/html/gst-plugins-base-plugins-0.10/gst-plugins-base-plugins-audiotestsrc.html
AudioTestSrc can be used to generate basic audio signals. It support several different waveforms and allows to set the base frequency and volume. Example launch line
gstreamer – Gateworks
http://trac.gateworks.com/wiki/gstreamer
GStreamer on Gateworks SBCs. The intended goal of this article is to provide the user with enough information so they can create their own GStreamer pipelines. ... audiotestsrc. The audiotestsrc is a very useful element for testing. It can output 16-64bit audio/x-raw: S16LE, S32LE, F32LE, F64LE
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