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4. The /audio/loop Robot

The /audio/loop Robot

Transloadit offers a variety of features to reduce audio size while maintaining quality, as well as add effects like loops or watermarks.

Wether you're producing beats, white-noise, or just empty segments as fillers between audio tracks that you're to stringing together with our [/audio/concat]({{site.data.robot_links["/audio/concat"]}}) Robot, [/audio/loop]({{site.data.robot_links["/audio/loop"]}}) has got you're back.

The /audio/loop Robot's Parameters

Name	Type	Default	Description
preset	String	"mp3"	Performs conversion using pre-configured settings. If you specify your own FFmpeg parameters using the Robot's ffmpeg parameter and you have not specified a preset, then the default mp3 preset is not applied. This is to prevent you from having to override each of the mp3 preset's values manually. For a list of audio presets, see audio presets.
bitrate	Integer	Auto	Bit rate of the resulting audio file, in bits per second. If not specified will default to the bit rate of the input audio file
sample_rate	Integer	Auto	Sample rate of the resulting audio file, in Hertz. If not specified will default to the sample rate of the input audio file
duration	Float	60.0	Target duration for the whole process in seconds. The Robot will loop the input audio file for as long as this target duration is not reached yet.

Example use cases featuring the /audio/loop robot

See the robot in action with some live demos and code samples right here on our website:

Audio Looping

Here you can see a quick example of the Assembly Instructions required to create this encoding pipeline. More information is available in the Live demo

{
 "steps": {
    "mp3": {
      "use": ":original",
      "robot": "/audio/loop",
      "result": true,
      "duration": 300,
      "preset": "mp3"
    }
  }
}

Blog posts about the /audio/loop robot

• Adding Four New Robots to Our Family! September 24, 2015