Non-Referenced Mode
In Non-Referenced Mode, the system is typically processing audio of completely unknown program content (e.g. arbitrary music or speech content). Since the system does not have any prior knowledge of the audio being analyzed, the types of audio analysis that can be performed is limited.
The following events are reported whenever the system is operating in Non-Reference mode. These are the meaningful audio analysis that the system can perform without reporting too many false positive results.
- Volume Level (Low Volume or High Volume): Reported if the average volume level is not in a range conducive to performing meaningful audio analysis.
- Clipping: Amplitude distortion due to a signal amplitude exceeding the maximum value that can be represented by the digital system
- Dropout: Abrupt and very short duration intervals of silence
- Glitch: Extremely large sample-to-sample audio amplitude transitions that have little probability of occurring within natural speech or music
