Signal delay device

The most likely reason you can't find a device in the microsecond range is that most audio delay devices are digital. There is a finite delay in processing analog into digital and I would suggest that the processing delay is the limiting factor for how short of a delay you can achieve. That's not to say it's not possible to go faster with the fastest converters or even new designs with emerging or future technologies but without a substantial market demand, there would be no incentive to produce such a device.

There is/was an analog delay line that I recall being used in old CRT NTSC type color TVs, but IIRC, it was fixed time delay(I don't know/remember how long) for aligning video signals not audio so I think it was not necessarily for audio... but who knows. en.wikipedia.org/wiki/Analog_delay_line www.arrow.com/en/categories/clock-and-timing/delay-lines www.electronicdesign.com/technologies/analog/article/21801240/an-accurate-analog-delay-circuit

If you want to design and build electronics, you can educate yourself and design your analog microsecond delay line.

Don't take my response as the final word. Keep searching!

Yeah, I realise that this could be more effectively carried out in my DAW, however I'd like to align the signals prior to recording in order to treat two mics on a guitar amp as one signal, which has various advantages for me.



I recently made a documentary about Steve Albini's drum recording technique, and in it he mentions an Eventide delay device that he uses to add a few ms of delay to room mics. Here's a screenshot:




On investigation it appears that Eventide made this device specially for Steve and have no intention of rolling it out commercially. I've just discovered that it was made from a couple of DDL500s, so it's a digital device. You can see that it fits the bill perfectly. My question is -- how is it possible to get my hands on something like this? My only hope seems to be to have someone clever build me something...