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The feature "mini2sf to midi verified" refers to a capability within music conversion tools—most notably VGMTrans—that allows users to extract sequenced music from Nintendo DS audio rips and convert it into high-fidelity MIDI files. Key Functions and Context

• Event Timing: Mini2SF often uses a frame-based tick system (e.g., 50Hz or 60Hz device clock) rather than MIDI's PPQN (Pulses Per Quarter Note). Without a verified tick-to-millisecond mapping, tempo drifts.
• Instrument Mapping: The embedded SoundFont patch numbers are not General MIDI (GM) compliant. A "Piano" in Mini2SF might be patch 42, not 1.
• Loop Semantics: MIDI does not natively support seamless loops except via LoopStart / LoopEnd meta-events (rarely supported). Mini2SF loops are often hardwired; conversion must decide whether to flatten loops or insert MIDI markers.
• Proprietary CCs: Modulation, expression, and effect sends use custom controller numbers.

: This is less efficient than VGMTrans and often results in "dirty" MIDI files that require significant cleanup. SDAT Extraction

• Extraction/Import: The initial step involves extracting or importing the musical data from the "mini2sf" format.
• Translation: The musical data (notes, velocities, control changes, etc.) is then translated into MIDI's language. This involves mapping the data from the source format into MIDI's structure, which can include note on/off messages, pitch bend, and control changes.
• Verification: After conversion, a verification process ensures that the converted MIDI file accurately represents the original musical intent. This may involve checking for correct note pitches, durations, and other musical parameters.

Pitch Accuracy: By default, some converters turn frequency effects into Pitch Bend events to keep the recreation accurate.

Converting mini2sf files—a specialized Portable Sound Format (PSF) for Nintendo DS music—to MIDI is a multi-step process because these files contain sequenced data rather than raw audio.

A mini2sf file is essentially a compressed snippet of a Nintendo DS ROM. To work with it, you often need to convert it back into a readable ROM format.

• Track Count: Open the MIDI in Sekaiju. Does the number of tracks match the original song's sound channels (e.g., 8 channels for early PSP, 16 for later)?
• Instrument Assignment: Look at the Program Change events. Are drums on Channel 10? If your bassoon sound is playing a drum roll, you must manually reassign the bank select (usually MSB/LSB 0/0 or 0/127).
• Loop Points: Mini2SF often contains seamless loops. MIDI does not natively loop easily. A verified conversion will explicitly set DAW markers for loop start and end.
• Velocity Sensitivity: PSP games used aggressive velocity scaling. In an unverified MIDI, all notes are stuck at velocity 100. A verified conversion preserves the velocity variance (e.g., 24 for soft, 112 for hard).

SynthFont is used to "verify" the conversion by pairing your exported MIDI with the correct soundfont (SF2/DLS).

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