# Can someone explain "Latch Emulation" for me? **URL:** \ **Category:** Quad Cortex\ **Created:** [November 14, 2022, 3:47am UTC](https://unity.neuraldsp.com/t/can-someone-explain-latch-emulation-for-me/8802 "2022-11-14T03:47:18Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![tjbassoon](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/tjbassoon/32/3363_2.png) [@tjbassoon](https://unity.neuraldsp.com/u/tjbassoon)\ **Post date:** [November 14, 2022, 3:47am UTC](https://unity.neuraldsp.com/t/can-someone-explain-latch-emulation-for-me/8802/1 "2022-11-14T03:47:18Z")
It’s an option for expression pedals, and has something to do with momentary switches. Is this for some unicorn expression pedal that has a built in momentary switch? Or is it designed for a second pedal that’s momentary somehow? As I’m typing, it’s making me think of the foot controller I have for my Voicelive3 (the Switch 6) which has 6 switches, but they send essentially expression pedal settings to the unit and allow for extra buttons. Is that it? If so, does the Switch 6 or Switch 3 or other similar pedals work with the QC using this feature? Or am I off base with this line of thinking. ---
**Author:** ![Bando](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/bando/32/2844_2.png) [@Bando](https://unity.neuraldsp.com/u/Bando)\ **Post date:** [November 15, 2022, 5:19pm UTC](https://unity.neuraldsp.com/t/can-someone-explain-latch-emulation-for-me/8802/2 "2022-11-15T17:19:06Z")
It’s an option for expression pedals that have built-in momentary toe switches (like the Mission Engineering SP-25M-PRO) that allows the momentary switch to act as a latching switch. ---
**Author:** ![Bando](https://sea2.discourse-cdn.com/flex020/user_avatar/unity.neuraldsp.com/bando/32/2844_2.png) [@Bando](https://unity.neuraldsp.com/u/Bando)\ **Post date:** [November 15, 2022, 5:20pm UTC](https://unity.neuraldsp.com/t/can-someone-explain-latch-emulation-for-me/8802/3 "2022-11-15T17:20:09Z")