you can actually tweak your samples in Furnace's sample editor, which can be accessed by clicking on `window` (at the top of the screen) then clicking on `sample editor`.
the changes you make will be applied as soon as you've committed them to your sample, but they can be undone and redone, just like text.
- **Loop**: enable or disable sample loop. only on supported chips.
- **Mode**: direction of loop. backward and ping pong loops are only natively available on some chips; on others, loop will be automatically unrolled as needed.
- **Edit mode: Select**: cursor selects portion of sample.
- **Edit mode: Draw**: cursor draws over wave.
- **Resize**: stretches sample. pops up a dialog to type new length.
- **Resample**: stretches sample. pops up a dialog box:
- **Rate**: new sample rate.
- **0.5x**: halves sample rate.
- **==**: returns to original sample rate.
- **2.0x**: doubles sample rate.
- **Factor**: multiplier of original sample rate.
- **Filter**: selects interpolation filter for resampling.
- **Undo**: undoes previous edit.
- **Redo**: redoes undone edit.
- **Amplify**: changes amplitude of selection. pops up a dialog to type amount.
- **Normalize**: adjusts amplitude of selection to maximum without clipping.
- **Fade in**: ramp amplitude of selection from 0 to original.
- **Fade in**: ramp amplitude of selection from original to 0.
- **Insert silence**: inserts silence. pops up a dialog to type length.
- **Apply silence**: reduces amplitude of selection to 0.
- **Delete**: removes selection.
- **Trim**: removes all but selection.
- **Reverse**: reverses direction of selection.
- **Invert**: flips selection "vertically".
- **Signed/unsigned exchange**: reinterprets selection data as being of the opposite sign. if a sample sounds fine elsewhere but is distorted on import, it may have been interpreted as signed when it should be unsigned, or vice versa; this will correct that.
- **Apply filter**: filters the selection. pops up a dialog box:
- **From**: filter cutoff frequency at start of selection.
- **To**: filter cutoff frequency at end of selection.
- **Resonance**: emphasizes frequencies around filter cutoff.
- **Power**: number of times resonance is applied.
- **Low-pass**: amount to attenuate everything above cutoff.
- **Band-pass**: amount to attenuate everything outside cutoff.
- **High-pass**: amount to attenuate everything below cutoff.
- **Preview sample**: plays sample at base frequency.
- **Stop sample preview**: stops preview.
- **Create instrument from sample**: creates a new instrument with its initial sample set to the current sample.
- **Zoom**: shows and sets sample view zoom level.
- **Zoom mode**: switches between "Auto" (entire sample fits in window) and "100%" (each horizontal pixel represents one sample point).
