Linear Acoustic Ships LQ-1 Loudness Meter
LQ-1 follows standards, fulfills ‘must-haves’
March 26, 2013
LANCASTER, PA.—Linear Acoustic has begun shipping its LQ-1 Loudness Meter.
The LQ-1 supports ITU-R BS.1770 loudness metering standards and includes selectable Dolby Dialogue Intelligence automatic gating. The resulting metered value complies with standards and recommended practices such as ATSC A/85 and EBU R128 and reflects listener perception.
Input and output signal levels are clearly displayed alongside measured loudness and dialnorm metadata, giving instant verification of loudness compliance.
Audio can be extracted from applied HD/SD-SDI signal or from the AES, Toslink optical or balanced analog inputs. The unit also supports DVB-ASI and can extract a selected PID from an applied MPEG transport stream for decoding and measurement.
A selectable LtRt or LoRo downmixed output is available from AES and analog balanced outputs and via the front panel headphone connector following decoding and metering. Metadata emulation and Associated Dialogue (AD or Visual Descriptive) mixing can also be auditioned on the downmixed output.
“The list of ‘must haves’ for this meter was long," says Linear Acoustic Vice President and Executive Director Christina Carroll. “It had to be easy to use, flexible and accurate. It had to be small enough for tight edit bays, and tough enough to use in an OB truck. Plus it had to be affordable.”
Dolby Digital, Dolby Digital Plus, and Dolby E decoding are standard along with GPI/O support for alarms and control. Options include an external redundant power supply and SNMP for system monitoring or logging via Ethernet.