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Decimate sample rate

The decimate hook reduces the sampling rate by periodically discarding samples.

Implementation

The source code of the hook is available here: https://github.com/VILLASframework/node/blob/master/lib/hooks/decimate.cpp

Configuration

ratio
required
integer

The decimation ratio. A value of 4 will skip every, but the 4th sample in a row.

enabled
boolean
Default: true

An optional field which can be used to disable a hook.

priority
integer
Default: 99

The priority of this hook which determines the order in which hooks are executed. Hooks with a lwoer priority are executed before ones with a higher priority.

If no priority is configured, hooks are executed in the order they are configured in the configuration file.

{
  • "ratio": 4,
  • "enabled": true,
  • "priority": 99
}

Example

node/etc/examples/hooks/decimate.conf
@include "hook-nodes.conf"

paths = (
{
in = "signal_node"
out = "file_node"

hooks = (
{
type = "decimate"

ratio = 10
}
)
}
)