# Please explain sigma-delta modulator in my signal path **URL:** \ **Category:** Roon Software Discussion\ **Created:** [September 28, 2019, 5:20pm UTC](https://community.roonlabs.com/t/please-explain-sigma-delta-modulator-in-my-signal-path/79277 "2019-09-28T17:20:27Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![ged\_hickman1](https://community.roonlabs.com/user_avatar/community.roonlabs.com/ged_hickman1/32/259791_2.png) [@ged\_hickman1](https://community.roonlabs.com/u/ged_hickman1)\ **Post date:** [September 28, 2019, 5:53pm UTC](https://community.roonlabs.com/t/please-explain-sigma-delta-modulator-in-my-signal-path/79277/2 "2019-09-28T17:53:00Z")
What’s under the sigma box? Any DSP? Or volume control on the devialet? If so this may apply > [@Native DSD processing](https://community.roonlabs.com/t/native-dsd-processing/24286/2): > > Unlike with PCM, processing 1-bit DSD signals in their original form is not practical because 1-bit signals do not have enough dynamic range to perform common operations like volume adjustment, eq, mixing, or convolution directly on the 1-bit representation. So when DSD IS processed, the input to the processing chain is a 1-bit DSD signal, but the output must have more dynamic range. In Roon’s case, we perform processing with 64-bits of precision, so whenever you process DSD, you end up with so… --- _[View the full topic](https://community.roonlabs.com/t/please-explain-sigma-delta-modulator-in-my-signal-path/79277)._