VocalDocscontracts 1.65.0

TraceEnvelope

The loudness of one speaker per 100 ms bin, for the diagnostics waveform. A measurement, not content: a loudness series shows when and how loudly someone spoke, not what was said, so the trace returns it without an include class (workspace ADR 0068).

An object with 4 fields.

Fields

FieldTypeRequiredDescription
laneTraceEnvelopeLaneyes
start_msintegeryesThe trace time of the first bin, in milliseconds from the trace epoch.
step_ms100yesThe width of one bin.
valuesarray of integeryesOne integer per bin, 0 to 100: the bin's RMS level in dBFS mapped linearly from -60 (0) to 0 (100), with anything quieter than -60 as 0. At most 36,000 bins, one hour at 100 ms.