Hey everyone,
At the moment I‘m creating samples from old key-Instruments like Piano, e-Pianos, Mellotron etc. When I sample in synth I find the sampled key quickly comes out too squeezed in the high keys or with too much artefacts in the lows compared to the original. Therefore I find sampling every third key inbetween two octaves within the 12s limit appears most natural. Later cut and pitch them on every single key on OP1 or the drum utility.
What’s your approaches in this situation☺️?
Fab
Every 3 semitones is my favourite, allowing 2.5s per sample on OP-1 field (20s limit). For acoustic pianos, 6 semitones is a very max to keep a natural sounding, and minimal lenght of 2s required… it becomes a little tricky with the 12s limit of OG-1. Also, nothing good is possible without ADSR, which has been added in OP-1 field but doesn’t exist in OG-1 I guess unless you configure to play the whole sample wherever the key is released or not. I have tried this latest suggestion prior the ADSR update with 2.5s Steinway samples and it was not so bad. However, a normal 6s synth sample at a middle E tone was finally more natural…
Yeah, 3 semi tones seems to be best 
Nice exploration with the E key, I will try that out.
Actually the OG1 has ADSR, too. But 6s limit makes it hard to capture tails and sustain. And release wouldn’t get it modulated enough.
Btw, is there a way in the synth-sampler to have the sample not repeat itself as long as a key is pressed, but stopping at the end after pressed once? Like in drum sampler?
Concerning ADSR, I was talking about ADSR in drum mode which was added in recent firmware update 
AFAIK, the best solution to avoid the sample to repeat in synth mode is to move loop start & end both at the end of the sample (however, in drum mode you can set the sound to play the whole length after key up, which is not possible I think in synth mode). Maybe there’s another better solution, but I’m not aware of it yet. 6s is fine for piano, remember that in 90s the best piano samples available were only 2s long… And another point: 6s at middle E will be 12s at lower F which is fine as higher notes need a short release time and low notes a longer one (at least for a piano sound).
Hey, ah I see. Sure more convinient on the field. In and out to the end of the sample is a nice trick☺️
Right now, I cut the samples either in drum utility or directly in OP1, then save it as a snapshot and rename the aif on the computer. But no matter which root, I always end up with some pops on the beginning or the end of a sample in drum mode, even though if I cut it right without in the first place. They just reappear…
Also, using the fine-tune in-out points with shift, it barely does anything to the point as if it simply doesn’t alter the position of the point. Is it likely in your case, too?
BTW, is there lots of failure in my writing? Sorry for my bad English…
I recommand drum utility - teenage engineering and don’t have any problem with it, be sure to choose OP-1 or OG-1 on top of the menu. I only have 2 minor issues: 1) this utility dislikes (stereo) AIF so be sure to send WAV files (it’s strange as OP-1 internal format is AIF!) 2) samples are technicaly randomly placed in the output file. I don’t know if it’s a behaviour decided by the devs (better memory access or any other technical reason). Anyway, it works great. Just be sure to edit key by key to fix the proper pitch directly on your OP-1. Also, just put the samples you have 1 time per sample, and then use copy/paste on your OP-1: it will use a logical copy and not a real one, even if you change the pitch later (memory saving).
I’ll try those out☺️ If the patches come out good I could imagine to share them here on the forum or in OP1 fun. But I don’t know if it’s a legal thing to do as I sampled actual brand‘s synths.
Aside from acoustic Instruments like Akkordeon, Piano and Violine, which shouldn‘t be a Problem in terms of sharing, I also sampled Logic‘s Mellotron plugin, the Dexed DX7 plugin, Commodore Sounds from Cynthcart and Electrosound 64 and a Roland HP 70. Don’t know if these could cause copyright issues. So Far I understand, just using them for my own wound be a matter of prosessing the sounds, only, and should be fine, though.
BTW, if you‘re into working with real C64 sound processing, Electrosound 64 is by far the most powerful and well thought out music software from back in the day. It’s nearly like a sequencer based little DAW.