Twenty Log
Well-known member
Howdy,
Playing with a concept for a stepped relay ladder of resistors, that has native "priority encoding" in the topology for ladder/resistor values built into the relay ladder encoding. (e.g., the relay to the right in the ladder will defeat the relay/resistor value adjacent to the left)
Typically, only one relay at a time is actuating as a rotary switch is rotated (some 74HC logic in a remote location encodes/decodes coil voltage sequences for the ladder as the ladder is "wrapped" to take advantage of DPDT unused contacts)
There may be a point whence one relay is in mid-throw (not connected on any of the contacts), which defeats the priority functionality, to where two of the stepped ladder resistors may be in series...
Thusly, when switching from 5dB to 6dB there may be a short period where the total ladder resistance effects a 3dB output (could be worse I suspect).
The question is, a 3dB change in output level for about, say, 4~8 ms throw noticeable? Will there be a noticeable "thud" or "click"?
... Area under the curve and human hearing...
This is for a mastering gain/attenuator (active) before hitting converters, so not a lot of gain after this proposed device.. Set it and forget it whilst bouncing... it's just the initial setup during playback that may be the concern/annoyance... I would a*sume no time varying dynamics processors post this device but one never knows...
Thoughts? Cheers!
Playing with a concept for a stepped relay ladder of resistors, that has native "priority encoding" in the topology for ladder/resistor values built into the relay ladder encoding. (e.g., the relay to the right in the ladder will defeat the relay/resistor value adjacent to the left)
Typically, only one relay at a time is actuating as a rotary switch is rotated (some 74HC logic in a remote location encodes/decodes coil voltage sequences for the ladder as the ladder is "wrapped" to take advantage of DPDT unused contacts)
There may be a point whence one relay is in mid-throw (not connected on any of the contacts), which defeats the priority functionality, to where two of the stepped ladder resistors may be in series...
Thusly, when switching from 5dB to 6dB there may be a short period where the total ladder resistance effects a 3dB output (could be worse I suspect).
The question is, a 3dB change in output level for about, say, 4~8 ms throw noticeable? Will there be a noticeable "thud" or "click"?
... Area under the curve and human hearing...
This is for a mastering gain/attenuator (active) before hitting converters, so not a lot of gain after this proposed device.. Set it and forget it whilst bouncing... it's just the initial setup during playback that may be the concern/annoyance... I would a*sume no time varying dynamics processors post this device but one never knows...
Thoughts? Cheers!