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Axe-Fx III Firmware 19.00 Beta 1

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FractalAudio

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Fractal Audio Systems
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https://www.fractalaudio.com/downlo...xe-fx-3/19p0/axefxiii_dsp_rel_19p00_beta1.zip

Axe-Fx III Firmware Release Notes​



19.00

Version 19.00 firmware represents the first use of the Chase Nonlinear Feedback (CNFB) technique for the solution of nonlinear ODEs. The power amp algorithm has been completely rewritten using the CNFB method. This provides improved accuracy, especially in the clipping and power supply sag behavior vs. frequency.

Added y-axis labels to RTA.

Added Time Shape parameter to Megatap Delay. The EXP/LOG setting is the default and behaves as before allowing time shapes between exponential and logarithmic (including linear). The SIGMOID setting is a four-quadrant shape that allows time shapes between sigmoid and inverse sigmoid. The COSINE and SINE settings select sine wave shapes with the Time Alpha parameter controlling the number of periods from 1 to 8.

FC: Amp Level Save now has an option for 0 dB to allow saving a preset via a footswitch.

Fixed signal level into power amp a bit too high in 6160 models.
 
Last edited:

gb714us

Member
19.00 Version

19.00 firmware represents the first use of the Chase Nonlinear Feedback (CNFB) technique for the solution of nonlinear ODEs. The power amp algorithm has been completely rewritten using the CNFB method. This provides improved accuracy, especially in the clipping and power supply sag behavior vs. frequency.

Added y-axis labels to RTA.

Added Time Shape parameter to Megatap Delay. The EXP/LOG setting is the default and behaves as before allowing time shapes between exponential and logarithmic (including linear). The SIGMOID setting is a four-quadrant shape that allows time shapes between sigmoid and inverse sigmoid. The COSINE and SINE settings select sine wave shapes with the Time Alpha parameter controlling the number of periods from 1 to 8.

FC: Amp Level Save now has an option for 0 dB to allow saving a preset via a footswitch.

Fixed signal level into power amp a bit too high in 6160 models.
 

Stratoblaster

Fractal Fanatic
Wow that was fast...only a few days from announcing CNFB, then porting it to AMP block, finding it required optimization, and releasing a beta is very cool...respect! It's exciting to see this kind of development.

That it also improves accuracy of the power amp is music to my ears (and will be literally when CNFB eventually makes it's way to the FM3/FM9).

I'm curious, has the CPU gained the expected savings seen when CNFB was first announced?
 

Dave Merrill

Fractal Fanatic
https://www.fractalaudio.com/downlo...xe-fx-3/19p0/axefxiii_dsp_rel_19p00_beta1.zip

Axe-Fx III Firmware Release Notes​



19.00

Version 19.00 firmware represents the first use of the Chase Nonlinear Feedback (CNFB) technique for the solution of nonlinear ODEs. The power amp algorithm has been completely rewritten using the CNFB method. This provides improved accuracy, especially in the clipping and power supply sag behavior vs. frequency.

Added y-axis labels to RTA.

Added Time Shape parameter to Megatap Delay. The EXP/LOG setting is the default and behaves as before allowing time shapes between exponential and logarithmic (including linear). The SIGMOID setting is a four-quadrant shape that allows time shapes between sigmoid and inverse sigmoid. The COSINE and SINE settings select sine wave shapes with the Time Alpha parameter controlling the number of periods from 1 to 8.

FC: Amp Level Save now has an option for 0 dB to allow saving a preset via a footswitch.

Fixed signal level into power amp a bit too high in 6160 models.
Thank you!

What does that bold bit mean?
How can we save presets with a footswitch?
 
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