Samples and Loops

Role in the Mix

Samples and loops (vinyl samples in boom bap and lo-fi, melodic loops from Splice and Loopcloud in trap, drum loops and breaks in jungle, DnB, and house, vocal chops in future bass and house, percussion loops in afro house) are already-made mixes: they arrive with their own EQ, compression, and reverb, and often with bass, drums, and harmony together. The mixing job is therefore to integrate the sample: tune it and put it in time, remove whatever clashes with the new instruments (especially lows and low-mids), add or remove character, and place it in the same space as everything else. Sound On Sound has several guides on how to build tracks around melodic samples and on time-stretching drum loops.

Preparation (Before the Mix)

• Tempo: in FL Studio use the clip's/Sampler's stretching mode (Channel settings → Time stretching: the "Resample" mode also changes the pitch like a turntable, the "e3"/"Auto" modes keep the pitch) or Newtime; for drum loops, it is better to slice (Slicex, Fruity Slicer, or slicing in the playlist) and reposition the slices rather than stretch: no artifacts on the transients.
• Key: find the root of the sample (analyzer, ear, Newtone) and transpose in semitones; with "Resample" the key change also changes the tempo (like classic sampling on the MPC and SP-1200), which is often desirable in boom bap.
• Chops: divide the sample into slices (Edison, Slicex, Fruity Slicer) and replay it with the MIDI pad to create new phrases; add micro-fades (2–10 ms) at the start and end of each slice to avoid clicks.
• Phase and polarity when you layer a drum loop with your own drums: align the transients and try polarity inversion.

Gain Staging

Many loops are mastered and arrive at −1/0 dBFS: lower them right away (Fruity Balance or channel volume) to peaks of −12/−8 dBFS, otherwise you saturate every plugin that follows.

Corrective EQ

• HP on the melodic sample at 100–250 Hz when there is a new bass or 808 (the sample's old bass clashes).
• Sample bass: if you want to keep it, remove your own bass or filter in a complementary way; never two fundamentals in slightly different keys.
• Mud 200–500 Hz: −2/−4 dB (the sum of several instruments in the sample).
• Sample drums that get in the way: dynamic EQ on the original snare/kick band, or a filter (the sample is often "filtered" with LP/HP to keep only the melodic part, the 1990s boom bap technique).
• Noise and hiss above 10–12 kHz: LP, or leave it as character.
• Mid/side balance: if the sample is wide, cut the lows only in the side (Pro-Q M/S; in FL with Patcher + Fruity Stereo Shaper to separate).

Creative EQ

• Lo-fi/boom bap: band-pass 150 Hz–5 kHz, presence 1–2 kHz, "vinyl sound."
• Modern brightness for dark loops: shelf +2/+3 dB at 8–10 kHz.
• Automated filters (Fruity Filter, Fruity Love Philter): the sample filtered in the verse and opened in the chorus is one of the fundamental moves of filtered house (French house) and hip hop.

Compression

• Sidechain from the kick (2–6 dB): the sample "breathes" with the new drums (filtered house, lo-fi).
• Compression to glue sample and drums on the bus (2:1–4:1, 2–3 dB).
• Heavy compression as character (the crushed samples of 1990s house).

Transient Shaper

• Attack + to restore punch to compressed or stretched drum loops.
• Release − to shorten the built-in reverb tail and make the loop fit in a drier mix.

Saturation and Degradation

• Tape/tube to glue the sample and new instruments.
• Vintage sampler emulation: bitcrush and sample-rate reduction (Fruity Squeeze, Fruity Delay 3 in Off mode with Bits and Samp Rate, Decimort, SP950-style): the SP-1200 worked at 26.04 kHz and 12 bits, the MPC60 at 40 kHz and 16 bits (with a converter of recognizable character).
• Wow & flutter, crackle, noise (RC-20, Vinyl, Fruity Delay 3 with slow time modulation) for lo-fi: apply them sparingly, and to the new instruments too, for consistency.

Delay

• Tempo-synced delay on vocal chops and melodic phrases.
• Throw on the last slices before a new section.

Reverb

• The sample often already has its own ambience: don't add a different reverb; rather, put the new instruments in the same type of space (similar room or plate).
• If the sample is dry: a reverb shared with the new instruments.

Modulation

Slow phaser/flanger on loops (house, lo-fi); chorus to widen mono samples.

Stereo and Panning

• Stereo samples: check the correlation (vinyl samples and "widened" loops can be out of phase) and make the lows mono.
• Mono samples: keep them centered or slightly off-center; widen them with delay/chorus if needed.
• Vocal chops: center (hook) or sides (responses).

Sidechain

• From the kick (groove).
• From the vocal (dynamic EQ 1–4 kHz) when the sample contains voices or melodies in the rapper's/singer's zone.

Automation

• LP/HP filter per section; mute the sample in the bars before the drop; volume to follow the vocal.

Differences by Genre

Common Mistakes

• Loops at 0 dBFS: saturated plugins and a mix with no headroom.
• Two basses (the sample's and your own) clashing.
• Time-stretching with artifacts on the transients instead of slicing.
• Different reverbs between sample and new instruments: incoherent mix.
• Stereo samples with negative correlation in the lows.

Legal Note

Samples from commercial records require clearance of the master and the composition for release; loops from royalty-free libraries have specific license terms: check them before distributing the track.