Hi Tony,
The TimeLine device that I borrowed from Albert Porter is the older model. The new/current one has, I think, six strobe lights/flashes spread equidistant around its perimeter. I know it is different in some meaningful way.
It would also be interesting if the duration of the strobe itself would be quicker on and off. Then the strobe slash or line on the wall would be of shorter length. As it is now, because the device is rotating on the platter, the length of time that the light is on smears what would be a dot into what appears to be a line. This is consistent with my observation that the further away the wall is from the spindle, the longer is the strobe line/slash.
It is an incredibly interesting device and I think one could study what happens to the line with a slow speed camera and thus detect different behavior between belt drive and DD tables during the moment of flash, i.e. during very short durations, and perhaps detect visually deviations of speed consistency. Some listeners claim to hear this earlier in this thread.
If you look closely at Halcro's video, the strobe line looks different than it does on my video and the quality of my line changes slightly during the course of my video. So something else is going on.
As was mentioned earlier in this thread, there is also a distinction to be made between speed accuracy and speed consistency. I agree with those who think the latter is more easily heard.
The TimeLine device that I borrowed from Albert Porter is the older model. The new/current one has, I think, six strobe lights/flashes spread equidistant around its perimeter. I know it is different in some meaningful way.
It would also be interesting if the duration of the strobe itself would be quicker on and off. Then the strobe slash or line on the wall would be of shorter length. As it is now, because the device is rotating on the platter, the length of time that the light is on smears what would be a dot into what appears to be a line. This is consistent with my observation that the further away the wall is from the spindle, the longer is the strobe line/slash.
It is an incredibly interesting device and I think one could study what happens to the line with a slow speed camera and thus detect different behavior between belt drive and DD tables during the moment of flash, i.e. during very short durations, and perhaps detect visually deviations of speed consistency. Some listeners claim to hear this earlier in this thread.
If you look closely at Halcro's video, the strobe line looks different than it does on my video and the quality of my line changes slightly during the course of my video. So something else is going on.
As was mentioned earlier in this thread, there is also a distinction to be made between speed accuracy and speed consistency. I agree with those who think the latter is more easily heard.