Audio table consists of Events and Thresholds associated with the Program Audio.
| ID | Name | Event Error | Description |
61 | No Audio | No Audio | This event is triggered if one of the following occurs:
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62 | Audio Silence | Audio Silence | Audio Silence is detected for a longer time than the configured thresholds. The message specifies the relevant PID. |
63 | Audio Phase | Audio Phase Error | The audio phase error detected between Stereo or 5.1 content for a longer time than the configured threshold. The message specifies the relevant PID. |
73 | True-Peak Audio Level above X dBTP | Audio Peak | The audio peak detected is higher than configured. The default threshold defines the distance from max sample value in dBTP units according to ITU-1770-2, EBU-R-128 (3341, 3342, 3343, 3344) standards. The message specifies the relevant PID. |
74 | Short Term (3 seconds) Audio Level above X LUFS | 3s Audio Level | The audio detected short-term loudness above the configured value (calculated on a 3-second interval). The message specifies the relevant PID. Loudness value is measured in LUFS units. |
86 | Audio Bitrate, Max Threshold | Audio BR above Max | The audio bitrate detected is greater than the configured maximum threshold. |
87 | Audio Bitrate, Min Threshold | Audio BR below Min | The audio bitrate detected is smaller than the configured minimum threshold. |
107 | Detect Mono Audio (on streams with 2 or more channels) | Audio Mono | Mono audio detecting operates on Stereo or above programs. Audio level measurement of the differences between the left and the right channels is done. For the stereo channel, there should be some difference in amplitude. |
125 | Detect Audio Codec Mismatch | Audio Codec Mismatch | The event will trigger when the detected audio encoding does not match the configured/expected CODEC type (MPEG, AAC, HE-AAC...). |
126 | Audio Silence on Left Channel | Left Audio Silence | Silence detected only on the left channel. |
127 | Audio Silence on Right Channel | Right Audio Silence | Silence detected only on the right channel. |
128 | Detect Audio Channels Mismatch | Audio Channels Mismatch | This event is triggered when there is a mismatch in the audio program between the actual and expected value for Stereo, Mono, 5.1. |
141 | Audio Silence on all Channels (Mono, Stereo, or 5.1) | Audio Silence (L+R) | Audio Silence is detected on all Audio program channels. It can be on Mono, Stereo, or 5.1 channels. |
143 | Audio Silence on Surround Channels | Surround Silence | Silence detected on audio surround channels. |
211 | Audio Level below X LUFS for 60 Seconds (or channel defined time) | Low Audio | The audio level is below the configured minimum level for 60 seconds or more. |
255 | Audio language descriptor mismatch | Audio Lang Mismatch | If the current and expected Audio Descriptors PID's values are different, this event is triggered. |
258 | Monitor dialnorm vs expected static configured value | Dialnorm Mismatch | Dialnorm is only relevant for Dolby content. The value ranges between -1 to -31 and provides an indication of the level of the dialogue from the Audio content feed. It's basically the number displayed on the audio bars in yellow. |
| 334 | Audio Levels information (Silence/Low/Clipping) | Audio Levels | Triggered when the audio is either in clipping, silent or low state. When triggered, the extra info holds a string, with the PID/index of the audio and the current state (one letter per audio channel). SS = stereo silence, HH = stereo high, HHSSSS = suround, where left and right are high and all the rest are silent. |
340 | Audio level above X LUFS for 60 seconds (or channel defined time) | Loud Audio | It is triggered if the Audio level is above X LUFS for more than 60 seconds or as defined in the channel. |
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