This app detects and returns timespans in the audio track of a (potentially multimedia) file, which correspond to monotonic audio (i.e., the "tones" in SMPTE bars-and-tones). Created for use in CLAMS Project.
General user instructions for CLAMS apps is available at CLAMS Apps documentation.
The aubio Python library which this app uses is built on top of the ffmpeg multimedia processing framework. A default ffmpeg installation should contain everything you need to run the app as a standalone service (e.g., lib-dev codecs).
Although all CLAMS apps are supposed to run as stateless HTTP servers, some apps can configured at request time using URL query strings. For runtime parameter supported by this app, please visit CLAMS App Directory and look for the app name and version.
Specifically for this app, common use cases for altering the runtime parameters include:
stopAt: Limiting the duration of processed audio, in order to prevent superfluous processing. For example, if the tones are known to be in the first 30 seconds of the video.tolerance: Altering the length threshold of tones, in order to capture shorter lengths of monotonic audio.