Threshold: Difference between revisions

From GNU Radio
Jump to navigation Jump to search
(→‎Example Flowgraphs: : Adding reference to the Audio Source page's Sound Detector example)
 
Line 33: Line 33:


[[File:Tags_to_pdu_fg.png|800px]]
[[File:Tags_to_pdu_fg.png|800px]]
=== Audio Example ===
The [[Audio_Source#Sound_detector_and_notifier|Sound detector and notifier]] example on the [[Audio Source]] page contains a simple threshold volume detector.


== Source Files ==
== Source Files ==

Latest revision as of 00:49, 7 January 2022

Output a 1 or zero based on a threshold value.

Test the incoming signal against a threshold. If the signal excedes the High value, it will change its output to 1, and if the signal falls below the Low value, it will change its output to 0.

Parameters

(R): Run-time adjustable

Low (R)
Low threshold. Outputs 0 if input goes below it
High (R)
High threshold. Outputs 1 if input goes above it
Initial value
Value to output before the input reach one of the thresholds. Can be any value, not just 0 or 1.

Example Flowgraphs

Simple Example

This flowgraph can be found at Media:threshold_example.grc

Threshold Example.png

Threshold Result.png

Advanced Example

This flowgraph can be found at [1]

Tags to pdu fg.png

Audio Example

The Sound detector and notifier example on the Audio Source page contains a simple threshold volume detector.

Source Files

C++ files
Here
Header files
Here
Public header files
Here
Block definition
Yaml