Hi.
Using REW, I created a set of parametric EQ filters to deal with some acoustic issues in my room. I recreated them in the FusionDSP plugin in Volumio for my Raspberry Pi 4.
I have noticed that when using Spotify, the sound is different when playing through a DAC connected to my PC (filters set up in Equalizer APO) versus playing from the PC to Volumio when the Raspberry Pi 4 is connected to the same DAC.
The combination of Raspberry Pi 4 and Volumio definitely has more treble to the sound. It’s clearly noticeable on sounds with higher frequencies e.g. cymbals which are more forward with Volumio.
I have double checked the EQ settings between Equalizer APO and FusionDSP. They seem identical based on my reading of the GUI e.g. the type of filer, frequency, gain and Q.
The question to the forum is simple. Is it possible that Equalizer APO and FusionDSP can produce a different sound profile with the same parametric EQ settings?
I’m happy to provide more details e.g. versions of Volumio and FusionDSP etc but I really wanted to test the water first if what I’ve noted is plausible or if the problem may lie elsewhere with my setup.
Thanks,
CP.