ACP Workbench not saving custom PEQ settings to Up2Stream Pro???

DIY Products&Projects
1

I’ve painstakingly created a custom PEQ file in ACP Workbench.
When I go through the motions of downloading it to the firmware everything seems to go correctly.
I get the message that the download was successful.
But, when I cycle the power my custom settings are gone?
It always boots up in some strange EQ settings that I definitely do not want.
Where are the custom EQ’s stored on my computer?

Help, this is really aggravating.

Thanks,
Mads

2

A successful Download doesn’t necessarily mean the PEQ has been saved permanently.

A few things to check:

  • Is ACP Workbench only downloading the coefficients into the DSP’s RAM? Many DSP development tools do exactly that. After a power cycle, the DSP reloads its default coefficients from flash, which would explain why your changes disappear.
  • Look for a separate command such as Save to Flash, Store Parameters, Burn, Write EEPROM/Flash, or similar. On many DSP platforms, “Download” and “Save” are two separate operations.
  • After writing the PEQ, read the settings back (if ACP Workbench supports it) to verify they were actually stored.
  • Make sure you’re connected to the device in its normal operating mode when writing. If the board is only partially connected or in a recovery state, the software may successfully write to the live DSP without updating the persistent storage.

Regarding your question about where the PEQ files are stored on your PC:

Those are usually just project files created by ACP Workbench. Unless you’ve explicitly chosen a save location, check:

  • Your Documents folder
  • The ACP Workbench project/workspace folder
  • The last folder shown in the Save/Open dialog

The important point is that the file on your PC is not what the board boots from. On power-up, the board loads its DSP configuration from its onboard flash memory. If that flash image wasn’t updated, it will always restore the factory/default EQ regardless of what’s on your computer.

A couple of questions that would help narrow it down:

  1. Which Arylic board are you using (Mini V4, Pro V4, Amp, etc.)?
  2. Which version of ACP Workbench?
  3. After the download completes, do you see any option to Save, Burn, or Write to Flash, or only Download?