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Troubleshooting Audio Artifacts in SuperRack Performer

Jun 05, 2023

Learn how to troubleshoot audio artifact issues in SuperRack Performer.

Below are common causes for audio artifacts and drops in SuperRack Performer. Check this list to find out what to look for and what to avoid:

Reduce the Use of ‘Heavy’ Plugins

Some plugins are more CPU-intensive* than others. Consider replacing or disabling such plugins, most prominently heavy-duty reverbs. If you are unsure which plugins are straining the system, you can perform an elimination test: right click a plugin and select disable, then see how it affects the overall CPU load using the CPU meter. (Note that bypassing the plugin will not affect CPU usage).

*Plugins that could be considered ‘heavy’ on some systems include Abbey Road Chambers, Abbey Road Plates, IR-1, CLA Epic, H-Reverb, OVox, PRS SuperModels, Abbey Road TG Mastering Chain, CLA MixHub, Butch Vig Vocals, Scheps Parallel Particles, Manny Marroquin Tone Shaper, and X-FDBK.

Increase the Audio Interface’s Buffer Size

Increasing the buffer size for your audio interface will provide the computer with more processing headroom, at the expense of adding latency to the roundtrip.

In Windows, the buffer size is usually set in the audio interface control panel, while in macOS* it can be set directly in SuperRack Performer’s Setup tab.

Apple Silicon only – in Apple Silicon machines, lower buffer size may lead to better performance, as lower buffer values force the system to use its Performance Cores (and not the Efficiency Cores). If you are experiencing audio issues in SuperRack Performer with an Apple Silicon machine, experiment with lower buffers.

Adjust the Sample Rate

Consider using a lower sample rate (if applicable). A given session will use less CPU resources in 44.1 kHz than in 96 kHz for example and allow for more processing headroom, lower buffer size settings, and usage of more plugins.

Check Cables, Adaptors and Hubs

Cables or adaptors connecting your interface to the computer can easily cause crackles and dropouts if they have become damaged or are improperly inserted. Check the connections and replace the cables/adaptors if necessary. For optimal performance, you should connect your audio interface directly to the computer and not via a hub whenever possible.

Check your computer's USB port and make sure it is free of dust and debris.

If your audio interface connects to your computer using USB, it is recommended to use a USB cable with a ferrite bead.

Audio Interface Software and Firmware

For optimal performance and stability, verify that your audio interface drivers and firmware are up to date. Check the manufacturers website for any updates.

Need further assistance? Contact Technical Support.