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audiolatency - GStreamer
https://gstreamer.freedesktop.org/documentation/audiolatency/index.html
audiolatency Measures the audio latency between the source pad and the sink pad by outputting period ticks on the source pad and measuring how long they take to arrive on the sink pad. The ticks have a period of 1 second, so this element can only measure latencies smaller than that. Example pipeline
audiolatency: GStreamer Bad Plugins 1.0 Plugins …
https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-bad/html/gst-plugins-bad-plugins-audiolatency.html
Description Measures the audio latency between the source pad and the sink pad by outputting period ticks on the source pad and measuring how long they take to arrive on the sink pad. The ticks have a period of 1 second, so this element can only measure latencies smaller than that. Example pipeline 1
autoaudiosink - GStreamer
https://gstreamer.freedesktop.org/documentation/autodetect/autoaudiosink.html
autoaudiosink. autoaudiosink is an audio sink that automatically detects an appropriate audio sink to use. It does so by scanning the registry for all elements that have "Sink" and "Audio" in the class field of their element information, and also have a non-zero autoplugging rank.
udp - Low latency audio streaming with gstreamer, …
https://stackoverflow.com/questions/51269974/low-latency-audio-streaming-with-gstreamer-dropped-samples-when-lowering-the-bu
I don't think gst-launch-0.10 is made to work in real-time (RT). Please consider writing your own program (even using GStreamer) to perform the streaming from an RT thread.NAOqi OS has the RT patches included and support this. But with network involved in your pipeline, you may not be able to guarantee it is going to be processed in time.
Tracing - GStreamer
https://gstreamer.freedesktop.org/documentation/additional/design/tracing.html
ordering: e.g. in the latency tracer we'd like to order by 'sink' and then by 'src' unique instance ids. the stats tracer logs new-element and new-pad messages; they add a unique ix to each instance as the memory ptr or the object name can be reused for new instances, the data is attached to the objects as qdata
San Jose Tek: Raspberry Pi: Webcam Microphone Streaming Test
https://sanjosetech.blogspot.com/2013/03/gstreamer-webcam-microphone-test.html
gst-launch tcpclientsrc host=x.x.x.x port=5001 ! sppxdec ! volume volume=10 ! autoaudiosink The latency was not good enough, around 1 sec. (Note: TX host IP should be receiver/Pandaboard IP address, and RX host IP address should be transmitter/Rpi IP address.) Best Raspberry PI Kit (Recommended!) Microphone streaming over UDP TX (RPi)
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