I Put NAM A2-Lite Inside an iRig HD X
The iRig HD X already had a 500 MHz Cortex-M7 inside. I replaced its firmware, squeezed the NAM A2-Lite engine into 128 KiB of FlexRAM, and measured the physical device against upstream NAMCore at −115.6 dB. The interface now runs a 5150 capture with an OD808 in front entirely on its own, with no host computer in the signal path.
I plugged a guitar and headphones into the iRig and heard the model with no host computer in the signal path. The USB interface had become the entire pedal.
- webprofusion
For the uninitiated this is using Neural Amp Modelling (NAM) captures of guitar amps (yes guitar amps all sounds different and people like to use different ones for different things).
NAM (an open source project) is about 8x more expensive to run that a standard C++ amp simulator (which emulate tone characteristics of a guitar amp using standard DSP algorithms).
However, I'm not seeing a link to the code here. Without that it's just an article and could be entirely fictional.
- theflyinghorse
Oh excellent! Once I get a bit of time I will try hooking NAM A2-l to a controller and then putting THAT inside of one of my old drive pedals for style.
- hoistway
Always great to see folks modding their audio interfaces. How's the power draw with NAM running on that hardware?