Picture you have a quite complex sample containing a seamless loop. It sounds great BUT there is some annoying resonating frequency in the sample you want to get rid of. Or the sample contains some noise artifact you don’t like.
You have some great software in your modern computer that is capable of repairing that sample BUT there is no way to get the sample in the computer and back to the old ASR without sacrificing the loop points.
Now here’s the solution, quick and simple:
Don’t worry about D/A/A/D conversion if you have a decent audio interface. Just be sure that the ASR is connected to the computer with same levels for input and output. Don’t monitor the input signal on the ASR while sampling in this application, it would cause a feedback loop.
OK, let’s go!
First, it’s important to override the ASR effect section, and any filtering, for this application because we need a dry, open signal. You can apply your effects and filters back later on.
Second, stay with the original pitch of the sample you want to engage with.
This way your original loop points will still work after the whole process we are discussing here, and that is our main goal!
Third, it’s vital to override velocity so that the sample that goes out is the same level as the one going in after processing.
Now, in the software you want to use, start the recording process.
Play the original note on the ASR to playback the sample.
Your recorded sample must be long enough to contain the precious loop completely, with some „flesh“ around.
Now edit your recording, filter or cut the annoying resonance out, or EQ it … .
When you are satisfied with the sound, it’s time to sample it back into the ASR.
And that’s the whole trick: just sample it „over“ the original sample, on the same note on the original layer. Only this way your loop will be maintained.
To do that, after pressing the SAMPLE button on the ASR, select the external input in mono or stereo, then PICK the INSTRUMENT your sample originates from, and when the next window pops up, just play the very note of your original sample. Start sampling, and playback the Audio from the computer. Stop sampling after it is in the ASR completely. Then play the note again. There is a big chance that the new sample will be looped correctly.
If there is a click in the loop, just fine-tune it using the LOOPPOS window. That’s the reason for having left some „flesh“ around the loop points.
By the way, the software I have used in this example is SpectraLayers Pro which is great for this kind of repairs!