Approximate DMP7/SPX90 "Symphonic" effect

[probonopd]

Now that there is

• Fx updated by @jnonis #793

maybe someone could come up with a performance that approximates the DMP7/SPX90 "Symphonic" effect. I think it'd be an awesome preset to have.

This is what inspired the idea:

• Yamaha TX816 Massive Stack El.Piano Power Ep.1 (bright)
• Yamaha TX816 Massive Stack El.Piano Power Ep.2 (James Bond)

What follows is what perplexity.ai thinks (be aware that it might be totally wrong - but at least the citations might serve as a starting point for own research):

To approximate the Yamaha SPX90 "Symphonic" effect using open-source effects, you can create a preset that combines chorus and flanger-like elements. Here's a suggested setup using common open-source plugins:

1. Start with a chorus effect:

   • Use a stereo chorus plugin with a slow modulation rate (around 0.2-0.5 Hz)
   • Set a moderate depth (30-50%)
   • Use multiple voices (3-4) to create a rich, ensemble-like effect[1][3]

2. Add a subtle flanger:

   • Set a slightly faster modulation rate than the chorus (0.5-0.7 Hz)
   • Use a low feedback setting (10-20%)
   • Set a moderate delay time (5-10 ms)[5]

3. Apply a high-pass filter:

   • Cut frequencies below 100-150 Hz to maintain clarity

4. Fine-tune the mix:

   • Blend the dry and wet signals, favoring the wet signal (60-70% wet)
   • Adjust the overall output level to match the input signal

This combination should create a lush, sweeping effect similar to the SPX90's Symphonic program, which is described as an "ultra chorus" with a strong effect[3]. The flanger component adds the characteristic sweep without introducing too much pitch modulation[5]. Remember to experiment with the settings to achieve the desired sound, as the original effect has a unique modulation scheme that's challenging to replicate exactly[1].

Citations:
[1] https://neyrinck.com/symphonic/
[2] https://www.worldradiohistory.com/Archive-All-Audio/Archive-Recording-Engineer/80s/Recording-1988-04.pdf
[3] https://www.muzines.co.uk/articles/hands-on-yamaha-spx90/7549
[4] https://www.academia.edu/38087738/Electronic_music_and_Computer_music_Peter_Manning_Oxford_University_Press_2013
[5] https://www.eventideaudio.com/forums/topic/spx-90-symphonic/
[6] http://www.muzines.co.uk/articles/yamaha-dmp7-digital-mixer/2471
[7] https://www.thegearpage.net/board/index.php