atomicbob's Recent Activity

  1. atomicbob liked Kattefjaes's post in the thread Inferred Jitter visual guide.

    But they are audible - not as tones in and of themselves, but in a softening of instrument separation and a loss of crispness of high...

    Jul 18, 2025 at 2:16 PM
  2. atomicbob liked purr1n's post in the thread Inferred Jitter visual guide.

    Front paged this thread because it's stuff like this that starts to truly delve into measurements considering how the science of...

    Jul 18, 2025 at 2:16 PM
  3. atomicbob liked purr1n's post in the thread Wiim Pro and Ultra Technical Measurements comparison.

    Yes listening. However, when I see obvious symmetry sidebands like that so far away from the signal, I worry. There is some correlation...

    Jul 18, 2025 at 2:16 PM
  4. atomicbob liked Kattefjaes's post in the thread Wiim Pro and Ultra Technical Measurements comparison.

    Yeah, generally I find lots of jitter-related sidebands lead to a loss of instrument separation and some veil, a "listening through a...

    Jul 18, 2025 at 2:15 PM
  5. atomicbob replied to the thread Wiim Pro and Ultra Technical Measurements comparison.

    Hopefully this post will provide some insight.

    Jul 17, 2025 at 7:22 PM
  6. atomicbob posted a new thread.

    Inferred Jitter visual guide

    Inferred Jitter visual guide Terminology for this discussion Fs: sample rate frequency f: sinusoid signal frequency (stimulus) inferred...

    01 20250716 inferred jitter 44K Wiim Ultra spdif-opt in to dac1221 USB input SE output annotated.png 02 20250716 inferred jitter 44K Vaunix Lab Brick  to dac1221 USB ASIO input SE output.png 03 20250717 inferred jitter dac1221 spdif coax input SE output t3 zoom annotated.png 04 20250716 inferred jitter 44K Wiim Ultra spdif-opt in to dac1221 USB input SE output annotated.png 05 20250716 inferred jitter 44K Vaunix Lab Brick  to dac1221 USB ASIO input SE output annotated.png 06 20250717 inferred jitter dac1221 spdif coax input SE output 120 Hz sidebands.png 07 20250717 inferred jitter dac1221 spdif coax input SE output 240 Hz sidebands.png 08 20250717 inferred jitter dac1221 spdif coax input SE output 360 Hz sidebands.png

    Forum: Measurement Setups, Systems, and Standards

    Jul 17, 2025 at 7:16 PM
  7. atomicbob replied to the thread Wiim Pro and Ultra Technical Measurements comparison.

    Listening; the final arbiter. Not all that matters can be measured. Not all that can be measured matters. - Jonathan Novick, Audio...

    Jul 17, 2025 at 6:25 PM
  8. atomicbob liked purr1n's post in the thread Wiim Pro and Ultra Technical Measurements comparison.

    [IMG] I was going to do the mark up tge sidebands yesterday but got distracted. You already beat me to it. Looks disturbing. The Ultra...

    Jul 17, 2025 at 6:24 PM
  9. atomicbob liked earnmyturns's post in the thread Wiim Pro and Ultra Technical Measurements comparison.

    Yeah, unfortunately only available in the US (and India, I believe) at the moment. Here's the requested copy (formatting mangled a bit,...

    Jul 16, 2025 at 2:35 PM
  10. atomicbob attached a file to the thread Wiim Pro and Ultra Technical Measurements comparison.

    @earnmyturns has provided a nice explanation. I'll give a more visual description specifically oriented to dScope measurements....

    20250716 inferred jitter 44K Wiim Ultra spdif-opt in to dac1221 USB input SE output annotated.png 20250716 inferred jitter 44K Vaunix Lab Brick  to dac1221 USB ASIO input SE output.png 20250716 inferred jitter 44K Dante RDL SF-ND2  to dac1221 spdif coax input SE output.png Jul 16, 2025 at 2:33 PM
  11. atomicbob liked Cspirou's post in the thread Mental Synergy.

    Anyone that has struggled with productivity has probably tried the pomodoro technique at some point. If you aren’t familiar the pomodoro...

    Jul 15, 2025 at 8:01 PM
  12. atomicbob liked Priidik's post in the thread Mental Synergy.

    This observation is common. Anxiety. Constant monkey brain. Doubts. Lethargy. This is for regular people who do not use their muscles....

    Jul 15, 2025 at 8:00 PM
  13. atomicbob liked Cspirou's post in the thread Mental Synergy.

    Exercise is definitely one of the best things you can do for your mind. I always recommend the book Spark by John Ratey MD whenever I...

    Jul 15, 2025 at 8:00 PM
  14. atomicbob liked Priidik's post in the thread Mental Synergy.

    The following could have been just as well posted in some physical activity thread: I started taking after breakfast (my biggest meal...

    Jul 15, 2025 at 8:00 PM
  15. atomicbob attached a file to the thread Wiim Pro and Ultra Technical Measurements comparison.

    [ATTACH] Inferred Jitter from a Söekris dac2541 with the following digital data paths at 44KHz sample rates: 1) dScope spdif-opt to...

    IMG_3291_small.jpg 01 20250715 inferred jitter 44K Wiim Ultra spdif-opt in to dac2541 USB input Bal output.png 02 20250715 inferred jitter 44K Vaunix Lab Brick to dac2541 USB ASIO input Bal output.png 03 20250715 inferred jitter 44K Dante RDL SF-ND2 to dac2541 spdif BNC coax input  Bal output.png 04 20250715 inferred jitter 88K Dante RDL SF-ND2 to dac2541 spdif BNC coax input  Bal output t2.png Jul 15, 2025 at 7:56 PM