Hall Research announces AD-340 Audio Delay Box
Published: PRODUCTS
Hall Research has released an audio delay processor named the AD-340. Described as a ‘compact’ device, it can add delay to stereo as well as multi-channel bitstream audio signals.
The manufacturer reports that the increasing demand for high definition video has created a new niche due to the time required to process HD video causing lip-sync issues. This is why the AD-340 provides both analogue (L/R) and digital (SPDIF) inputs and outputs, enabling conversion between analogue stereo to LPCM or vice versa.
Output delay can be dialled as milliseconds, video frames, or distance depending on the application. Meanwhile, analogue inputs provide +/- 24db of gain for direct connection of low level mic, as well as handling 2vrms line-level signals.
The AD-340's digital I/O supports two-channel linear PCM, 5.1 Channel Dolby Digital, and DTS Surround encoded bitstreams at any sampling rate from 32KHz to 96KHz. Meanwhile, inputs are ground-loop isolated to prevent buzz and hum noise when connecting to PCs or other unbalanced sources.
The AD-340 connects to a PC via USB port. No special drivers are needed, and free software includes a selection of sample rate for analogue inputs, temperature compensation of delay calculation for a given distance, and gain level control of analogue inputs and outputs.
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Web: www.hallresearch.com