High Latency with WASAPI vs. ASIO on Scarlett

[Ondrej Holba]

Hello, I need help setting up my SCS.

For one show I’m using a Focusrite Scarlett Solo (4th gen), a Korg NanoKontrol 2, and an AKAI LPD‑8 MKII.
I have six faders assigned to different sounds and music tracks.
Because the show is very rhythmic, I’m experiencing a noticeable latency: there is roughly a 0.45 s delay between triggering “GO” and hearing the sound through the PA system.
When I switch to ASIO in BASS, the latency drops dramatically, but all the faders start fading the sounds together.
Consequently, I’ve been using WASAPI instead.
I was tweaking some settings, so I’ll attach a few screenshots (Also for my ASIO settings in editor) in case I made an elementary mistake.

Is there a way to reduce the latency further, or can I configure ASIO drivers with the Scarlett while still keeping the faders independent?

Thank you for your answer, and sorry for my limited audio knowledge!

[Mike Daniell]

The issue with ASIO affecting all the faders would be due to having all your devices assigned to the same ASIO outputs (1-2).Will you have unique assignments (1-2, 3-4, etc) for the live production?

If not, please email me a log file from a run - preferably a run with WASAPI - so I can get a better understanding of what you are wanting to implement. Log files are created and saved in a folder named "SCS Logs" under "Documents", and the name of each file includes a time-stamp indicating when the log started. Email the file to support@showcuesystems.com.

[dee99]

ASIO is designed to be low latency and there are normally adjustments to reduce the latency at the cost of increasing the CPU usage.

WASPI buffering is determined by your system and besides being quite laggy you will find that the delay can vary depending on your system resources and power settings on your PC.

Where possible I would use ASIO, If you need more channels you will need an interface that has more outputs and has ASIO drivers.
You will also find that Bluetooth audio and wireless devices in general have a 40mS+ lag unless they have been specifically designed for very low latency.