My prompt to Gemini:
I have a Fractal FM9 guitar amp/effects modeler. If I upload an unamplified sample direct from my guitar (the DI signal) and a sample of an amped guitar, with effects, that I would like to re-create through the FM9 would Gemini be able to provide settings for a FM9 preset to obtain the desired tone?
Gemini Response (Fast Thinking mode):
Gemini cannot create a precise preset for an FM9 guitar amp/effects modeler. It cannot perform a technical "Tone Match" to generate exact parameter settings.
Capabilities
If you upload the DI and amped samples, this AI on Google Search can provide a theoretical framework for building the preset:
- Signal Chain Suggestions: It can suggest which blocks you might need and their order.
- Model Matching: Based on the audio characteristics, it can recommend specific FM9 amp and cabinet models that might get you close to the target sound.
- Initial Parameters: It can provide estimated starting points for knobs, but these will be approximations.
Recommended Alternatives
For an accurate recreation of the amped tone from a DI signal, the FM9 itself and other specialized tools are more effective:
- Fractal Tone Match Block: The FM9 can utilize Tone Match data.
- Impulse Response (IR) Capture: You can capture the frequency response of your amped setup as an IR. Using the FM9’s Cab block with a custom IR is often considered more accurate than a general EQ match.
- Third-Party AI Tools: Specialized tools like NAM (Neural Amp Modeler) or ToneGPT are designed specifically for amp profiling and can sometimes be integrated into a Fractal signal chain via the effects loop.
Pro Tip: For the best results, upload the
FM9 Owner’s Manual or the
Blocks Guide as a source document. This allows the AI to reference the specific models and parameters available in your firmware version.
Gemini Response (Pro mode):
No, Gemini cannot analyze an audio file to generate a Fractal FM9 preset or precise numerical settings.
While Gemini can describe the audio (e.g., "high-gain distortion with scooped mids"), it cannot "listen" to a track and mathematically reverse-engineer the signal chain into a compatible .syx file or parameter list. Furthermore, the
FM9 lacks the onboard "Tone Match" creation feature found in the flagship Axe-Fx III, meaning it cannot natively "capture" a tone from a sample by itself.
To achieve this, you must use a specific "Offline Tone Match" workflow involving a computer.
The "Offline Tone Match" Workflow
Since the FM9 cannot generate a Tone Match internally, you must create one using a DAW (Digital Audio Workstation) and import it as an Impulse Response (IR).
1. Isolate Audio
Prepare Your Tracks: In your DAW (Logic, Pro Tools, Reaper), load your
Reference Track (the tone you want) and your
Source Track (your dry DI guitar recording).
2. EQ Match
Apply Matching Plugin: Use an EQ matching plugin (e.g.,
FabFilter Pro-Q 3,
Logic Match EQ, or
iZotope Ozone).
- Set the plugin to "listen" to the Reference Track as the Target.
- Set it to "listen" to your DI Track as the Source.
- Run the "Match" function to generate a complex EQ curve that makes your DI sound like the recording.
3. Export IR
Create the WAV: Export only the resulting EQ curve (usually by playing a white noise burst through the matching EQ) as a mono
.WAV file (48kHz, 24-bit). This WAV file is your "Tone Match."
4. Import to FM9
Load via FM9-Edit: Open
FM9-Edit and go to the
"Manage Cabs" tool. Drag your exported WAV file into a "User Cab" slot. The software will automatically convert it to the Fractal format.
5. Build Preset
Cab Block: In your FM9 preset, place a
Cab Block after your Amp Block. Select the User Cab slot you just loaded. This IR now applies the entire "tonal DNA" of the recording to your signal.
Why this is necessary
Hardware & Software Limitations
Tone Match Capability
The
Axe-Fx III has a dedicated block that performs this entire process automatically in real-time. The
FM9 and
FM3 chips are not powerful enough to run the calculation, but they
can play back the result. By doing the math on your computer (Step 2 above), you bypass the hardware limitation.
Gemini's Role
Gemini is a Large Language Model, not a Digital Signal Processor (DSP). It analyzes text and image data, not raw audio waveforms for frequency analysis. If you upload the audio to Gemini, it might say "This sounds like a Vox AC30," which can help you choose the starting
Amp Model, but it cannot provide the thousands of data points needed to replicate the speaker cabinet and mic placement.