Leo did the unthinkable. He bought a used TS-10 from a pawn shop on Santa Monica Blvd using his rent money. He spent 72 hours straight re-sampling. He survived on cold pizza and Jolt Cola. On the final hour, he triggered a low C on the "ResoReese" bass patch. The sound was a perfect, snarling, detuned monster. He saved the final SF2 file. Total size: 148MB. He named it .
To the uninitiated, the TS-10 was just a 61-key workstation synth, its grey chassis unremarkable beside a bank of Moogs and Prophets. But Leo knew better. Inside that unassuming shell lived a 24-bit polyphonic aftertouch keyboard, a proprietary synthesis engine called "TS" (Transwave Synthesis), and a 16-track sequencer that had powered half the R&B hits of the late 90s. Its sound was its secret weapon—a gritty, warm, almost tactile quality. The piano had a wooden knock; the strings breathed with a noisy, imperfect vibrato; the pads bloomed like flowers in slow motion.
Leo’s mission, assigned by a boutique sample library startup called Sonic Foundry , was impossible: translate the soul of the TS-10 into the cold, sterile language of the SoundFont 2.0 (.SF2) format. Ensoniq TS-10 SoundFont -SF2-
The SF2 format was a miracle of 90s programming. Unlike a simple sample dump, an SF2 file contained a complete virtual instrument: the raw audio samples, a voice-stealing algorithm, low-pass filters, LFO routings, and a multi-stage envelope generator. But the TS-10’s magic wasn’t in the raw waves—it was in the behavior : the way a flute sound would morph into a choir if you held the key down, the way aftertouch added not just vibrato but a subtle distortion, the way the “Funk” wave in the Transwave section would cycle through eight different attack transients depending on velocity.
The SF2 format allowed for up to 27 different modulators. The TS-10 had 16 real-time controllers. Leo spent two weeks just mapping the aftertouch to filter cutoff response. On the TS-10, it was exponential—a light touch added warmth, a hard squeeze added bite. In SF2, he had to build a piecewise linear curve. He failed. Then he failed again. Finally, he wrote a custom script in an ancient version of Python that brute-force calculated 128 breakpoints. At 4 AM on a Tuesday, he played the converted patch. He pressed down on his MIDI keyboard’s aftertouch. The sound screamed . He cried. Just a little. Leo did the unthinkable
Today, the Ensoniq TS-10 SoundFont lives in the dark corners of thousands of hard drives. You can hear it if you know where to listen. It’s the warm, unstable pad on that lo-fi hip-hop track with 2 million YouTube views. It’s the brittle piano on that indie game soundtrack that made you nostalgic for a childhood you never had. It’s the bass in that techno track that shakes the subwoofer at 3 AM in a warehouse in Detroit.
But the internet is a digital graveyard that refuses to stay dead. In 2002, a bedroom producer in Ukraine uploaded “TS10_Legacy.sf2” to a forgotten FTP server. In 2005, a tracker forum in Sweden embedded it into a keygen. In 2011, a sample library curator on Reddit named VintageSamples_Archive found a pristine copy on a Zip disk at a flea market in Berlin. He survived on cold pizza and Jolt Cola
And for a moment, 1998 and 2026 are the same year.
In the winter of 1998, the air in the Los Angeles recording studio The Vault smelled of ozone, stale coffee, and ambition. Leo Focht, a 47-year-old sound designer with a hearing range that engineers swore defied physics, stared at the instrument that had consumed his last six months: an Ensoniq TS-10.
Leo Focht is 73 now. He builds model ships and has perfect hearing for his age. He does not own a computer. But once a year, his grandson brings a laptop over. The grandson, a music producer named Leo III, loads up a DAW and pulls up a file. It’s always the same file. He plays a middle C. The "DreamPad" swells, its noisy, imperfect loop cycling forever, the ghost of the TS-10 breathing through a 26-year-old SoundFont.
The TS-10’s samples were not perfect. To save memory (the TS-10 had only 6MB of factory ROM), Ensoniq’s engineers used clever, short loops. But translating a hardware loop to an SF2 loop was a form of torture. Leo would load a sample into Sound Forge 4.0 . He’d zoom into the waveform, looking for the "zero-crossing"—the exact point where the wave’s voltage returned to nil. He’d find a 200-sample cycle that sounded seamless on the TS-10. But in the SF2, it would click. Pop. Buzz. One night, working on the "Electric Grand" loop, Leo heard it—not a click, but a ghost. A faint, repeating artifact of the original recording session Ensoniq had used back in ’96: a distant car horn, looped into eternity. He isolated it. He named the file “TS10_EGrand_GHOST.wav” and kept it as a reminder that hardware has secrets software never can.