A specific configuration of operators produces a different sound in ESFMu compared to real hardware.
In such configuration, OP1 is set to the lowest TL and all other operators are set to zero pitch, maximum TL and modulation input levels in order to amplify the tiny signal coming out of OP1.
Lowering the modulation input level of OP2 in ESFMu by any amount (except for setting it to zero) produces similar output to real hardware, indicating a difference in output precision.
Test configuration
Furnace Tracker development branch, with ESFM support
For dead truth testing: djtuBIG-MaliceX's patch for hardware ESFM playback on Furnace Tracker (Windows only)
Description
A specific configuration of operators produces a different sound in ESFMu compared to real hardware.
In such configuration, OP1 is set to the lowest TL and all other operators are set to zero pitch, maximum TL and modulation input levels in order to amplify the tiny signal coming out of OP1.
Lowering the modulation input level of OP2 in ESFMu by any amount (except for setting it to zero) produces similar output to real hardware, indicating a difference in output precision.
Test configuration
Test scenarios
Module
esfm-pulselesspulse.fur.zip
Real hardware capture (dead truth)
Captured by @djtuBIG-MaliceX (thanks!).
https://github.com/Kagamiin/ESFMu/assets/102362203/1efac088-1bbf-4e7d-bbbd-caf52d88f1d7
Emulator capture (evidence)
https://github.com/Kagamiin/ESFMu/assets/102362203/e9f7b709-e83c-45a5-8ef8-6f070d58dd95