How does the “0” reference on a digital recorder correspond to the meters on a twinQ?
As far as the JOEMEEK digital output module is concerned, Full Scale Digital = +18dBu. We settled on that, partly because many other manufacturers do so and partly because of the variety of metering and Peak LEDs used in the JOEMEEK products. The twinQ and oneQ have a combination of analogue VU meter plus Peak LED. The meter is set so that 0VU = +4dBu, with a maximum reading of +4VU (ie: +8dBu). The Peak LED is set at +11VU (ie: +15dBu). This combination seems to work well: with punchy tracks the slow-reading VU meter shows an average level just into the red, while the Peak LED just flashes now and again. The Peak LED lights at about 6dB below clipping in analogue terms, so if the digital output clips at +18dBu, our “PEAK FSD” LED tells you you’re 3dB below digital clip. This seems like a reasonable compromise because digital people want to drive their digital recorders practically to the top whereas analogue people do not. The sixQ is different because it has a peak-reading bargraph,
