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Dolby Systems & Digital Delays
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The Digirator generates besides a comprehensive set of audio test signals also surround sound test sequences for verification and adjustment of professional Dolby Digital, Dolby E and DTS installations. Measurement of channel transparency, channel propagation delay and sample frequency is supported.
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Dolby Digital, Dolby E and DTS
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The Dolby and DTS test signals have been externally encoded and are implemented as WAV files. A set of 5.1 test sequences for the verification and optimization of surround sound equipment and installations is stored on the unit’s flash disc. The following formats are supported:
- Dolby D
- Dolby E16
- Dolby E20
- Dolby ProLogic II
- DTS 755k
- DTS 1509k
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The DR2 tests whether a transmission channel is transparent for non linear PCM signals and indicates if Dolby E, Dolby Digital and/or DTS bit streams can pass. This test is also suitable for any digital audio recording device.
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Digital Delay Measurement
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The propagation delay between any DR2 digital audio output and the XLR sync input (which accepts AES3 signals) may be measured and displayed in seconds or video frames.
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