science

Roland SP-404

Roland SP-404 is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Roland SP-404 rather than just read about it. In short: The Roland SP-404 Sampling Workstation is a sampler made by Roland Corporation. Released in 2005, it is part of the SP family of products and is the successor to Boss Corporation’s SP-505 sampler.

Key takeaways

Roland SP-404 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Roland SP-404 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Roland SP-404 from memory before moving on to harder problems.

Reference excerpt

The Roland SP-404 Sampling Workstation is a sampler made by Roland Corporation. Released in 2005, it is part of the SP family of products and is the successor to Boss Corporation’s SP-505 sampler. The sampler was succeeded by the SP-555 in 2008, but was later given its own upgrade as the Roland SP-404SX Linear Wave Sampler in 2009. Another upgrade, the Roland SP-404A Linear Wave Sampler, was released in 2017. A third upgrade, the SP-404MKII was released in 2021. The Roland SP-404 has played a huge role in influencing the sound of the popular hip hop sub-genre known as lofi hip-hop.

History The Roland SP-404 was developed as a succession to previous installments in the SP family, particularly the Boss SP-303. Its design, which features 12 pads, and its effects that were available on previous models, were introduced as selling points. The SP-404 was purportedly first used on an official release by Jneiro Jarel, on his LP Three Piece Puzzle. The growth of the SP-404 was propelled by the weekly club night Low End Theory, which was founded in 2006 and consistently featured artists such as Flying Lotus and Samiyam. Its usage became frequent in hip-hop produced during the mid 2000s, with producers such as Teebs repurposing the sampler as a field recorder. Roland, in recent years, has celebrated April 4th as "404 Day", which celebrates the creation of the sampler and its continued effects on modern hip-hop.

Features

OG / SX / A Having the traditional features of the Roland Grooveboxes, the 404 has the ability to record audio directly via line/mic, or import/export industry-standard WAV and AIF files via CompactFlash card. An onboard pattern sequencer allows up to 8,000 notes to be recorded in real time. Pattern data can be quantized and up to 24 patterns, each 1–99 measures long, can be stored in the internal memory. Using a 1GB CompactFlash card, sampling times can be as long as approximately 772 minutes in Lo-Fi mode, or up to 386 minutes long in Standard mode. However, the 404 (along with its own upgrades) lacks the D-Beam feature of the previous SP-808 and SP-606 installments. Although the first bank comes with preset samples that are protected, these samples can be removed by holding "cancel" as you turn it on. This allows you to delete the samples from the protected bank. The release of the 404SX in 2009 introduced the change from CompactFlash cards to SD cards, along with additional features, faster processing and changes to the in-built quantization system. The 404A introduced cross-compatibility with the Roland TR-8.

MKII Released in 2021, the 404MKII was a significant upgrade, while retaining the unit's original form factor. Among the new features were an extra four pads for a total of 16, an OLED display capable of showing sample waveforms, 16 GB of internal memory, USB-C and 32-note polyphony. The device was also given a new "Skip Back Sampling" feature with the addition of a "Mark" Button. This feature provides users the option to record the most recent 40 seconds of usage with the press of the button. In 2023 was released a Stone Throw Records Limited Edition.

In popular culture A number of musicians have used either the SP-303 and/or the SP-404 as part of their production and performance. These include Jel, Odd Nosdam, Alias, J Dilla, Madlib, JPEGMAFIA, Joji, MF Doom, Jneiro Jarel, Milo, Flying Lotus, James Blake, Samiyam, Ras G, Teebs, Grimes, Pictureplane, Four Tet, Beck Hansen, Antonio Planta, Bradford Cox of Deerhunter and Atlas Sound, Radiohead, Animal Collective, Spindrift, Toro y Moi, Broadcast, John Maus, Ellie Goulding, El Guincho, Illmind, Dibia$e, Jim James of My Morning Jacket, Oneohtrix Point Never (Daniel Lopatin), Matt Mondanile of Ducktails, Devo, Mad Professor, and many others.

References

Further reading "Roland SP-404SX". Future Music. No. 220. Future Publishing. ISSN 0967-0378. OCLC 1032779031.

External links Roland SP-404 Sampling Workstation, Roland SP-404SX/SP-404A Linear Wave Sampler

Illustrations

Worked examples

Example 1 — a first encounter with Roland SP-404

Start with the simplest possible case. Write down what Roland SP-404 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Roland SP-404 before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Roland SP-404 ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Roland SP-404

In research: Roland SP-404 appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Roland SP-404 in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Roland SP-404 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Grooveboxes, Hip-hop production, Japanese inventions, so understanding it makes those chapters shorter.
In everyday life: Look for Roland SP-404 outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Roland SP-404” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Roland SP-404 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Roland SP-404 means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Roland SP-404 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Roland SP-404 in simple terms?

The Roland SP-404 Sampling Workstation is a sampler made by Roland Corporation. Released in 2005, it is part of the SP family of products and is the successor to Boss Corporation’s SP-505 sampler.

Why does Roland SP-404 matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Roland SP-404?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Roland SP-404.