Tag Archive | sampling

The Blue Notes of Sampling

Sound and TechThis is article 2.0  in Sounding Out!‘s April  Forum on “Sound and Technology.” Every Monday this month, you’ll be hearing new insights on this age-old pairing from the likes of Sounding Out! veterano Aaron Trammell along with new voices Andrew Salvati and Owen Marshall.  These fast-forward folks will share their thinking about everything from Auto-tune to techie manifestos. So, turn on your quantizing for Sounding Out! and enjoy today’s supersonic in-depth look at sampling from from SO! Regular Writer Primus Luta.  –JS, Editor-in-Chief

My favorite sample-based composition? No question about it: “Stroke of Death” by Ghostface and produced by The RZA.

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Supposedly the story goes, RZA was playing records in the studio when he put on the Harlem Underground Band’s album. It is a go-to album in a sample-based composer collection, because of the open drum breaks. One such break appears in the cover of Bill Wither’s “Ain’t No Sunshine”, notably used by A Tribe Called Quest on “Everything is Fair.”

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RZA, a known break beat head, listened as the song approached the open drums, when the unthinkable happened: a scratch in his copy of the record. Suddenly, right before the open drums dropped, the vinyl created its own loop, one that caught RZA’s ear. He recorded it right there and started crafting the beat.

This sample is the only source material for the track. RZA throws a slight turntable backspin in for emphasis, adding to the jarring feel that drives the beat. That backspin provides a pitch shift for the horn that dominates the sample, changing it from a single sound into a three-note melody. RZA also captures some of the open drums so that the track can breathe a bit before coming back to the jarring loop. As accidental as the discovery may have been, it is a very precisely arranged track, tailor-made for the attacking vocals of Ghostface, Solomon Childs, and the RZA himself.

"How to: fix a scratched record" by Flickr user Fred Scharmen, CC BY-NC-SA 2.0

“How to: fix a scratched record” by Flickr user Fred Scharmen, CC BY-NC-SA 2.0

“Stroke of Death” exemplifies how transformative sample-based composition can be. Other than by knowing the source material, the sample is hard to identify. You cannot figure out that the original composition is Wither’s “Ain’t No Sunshine” from the one note RZA sampled, especially considering the note has been manipulated into a three-note melody that appears nowhere in either rendition of the composition. It is sample based, yes, but also completely original.

Classifying a composition like this as a ‘happy accident’ downplays just how important the ear is in sample-based composition, particularly on the transformative end of the spectrum. J Dilla once said finding the mistakes in a record excited him and that it was often those mistakes he would try to capture in his production style. Working with vinyl as a source went a long way in that regard, as each piece of vinyl had the potential to have its own physical characteristics that affected what one heard. It’s hard to imagine “Stroke of Death” being inspired from a digital source. While digital files can have their own glitches, one that would create an internal loop on playback would be rare.

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"Unpacking of the Proteus 2000" by Flickr user Anders Dahnielson, CC BY-NC-SA 2.0

“Unpacking of the Proteus 2000” by Flickr user Anders Dahnielson, CC BY-NC-SA 2.0

There has been a change in the sound of sampling over the past few decades. It is subtle but still perceptible; one can hear it even if a person does not know what it is they are hearing. It is akin to the difference between hearing a blues man play and hearing a music student play the blues. They technically are both still the blues, but the music student misses all of the blue notes.

The ‘blue notes’ of the blues were those aspects of the music that could not be transcribed yet were directly related to how the song conveyed emotion. It might be the fact that the instrument was not fully in tune, or the way certain notes were bent but others were not, it could even be the way a finger hit the body of a guitar right after the string was strummed. It goes back farther than the blues and ultimately is not exclusive to the African American tradition from which the phrase derives; most folk music traditions around the world have parallels. “The Rite of Spring” can be understood as Stravinsky ‘sampling’ the blue notes of Transylvanian folk music. In many regards sample-based composing is a modern folk tradition, so it should come as no surprise that it has its own blue notes.

The sample-based composition work of today is still sampling, but much of it lacks the blue notes that helped define the golden era of the art. I attribute this discrepancy to the evolution of technology over the last two decades. Many of the things that could be understood as the blue notes of sampling were merely ways around the limits of the technology. In the same way, the blue notes of most folk music happened when the emotion went beyond the standards of the instrument (or alternately the limits imposed upon it by the literal analysis of western theory). By looking at how the technology has evolved we can see how blue notes of sampling are being lost as key limitations are being overcome by “advances.”

e-muFirst, let’s consider the E-Mu SP-1200, which is still thought to be the most definitive sounding sampler for hip-hop styled sample-based compositions, particularly related to drums. The primary reason for this is its low-resolution sampling and conversion rates. For the SP-1200 the Analog to Digital (A/D) and Digital to Analog (D/A) converters were 12-bit at a sample rate of 26.04 kHz (CD quality is 16-bit 44.1 kHz). No matter what quality the source material, there would be a loss in quality once it was sampled into and played out of the SP-1200. This loss proved desirable for drum sounds particularly when combined with the analog filtering available in the unit, giving them a grit that reflected the environments from which the music was emerging.

Sp1200_Back_PanelOn top of this, individual samples could only be 2.5 seconds long, with a total available sample time of only 10 seconds. While the sample and conversion rates directly affected the sound of the samples, the time limits drove the way that composers sampled. Instead of finding loops, beatmakers focused on individual sounds or phrases, using the sequencer to arrange those elements into loops. There were workarounds for the sample time constraints; for example, playing a 33-rpm record at 45 rpm to sample, then pitching it back down post sampling was a quick way to increase the sample time. Doing this would further reduce the sample rate, but again, that could be sonically appealing.

An under appreciated limitation of the SP-1200 however, was the visual feedback for editing samples. The display of the SP-1200 was completely alpha numeric; there were no visual representations of the sample other than numbers that were controlled by the faders on the interface. The composer had to find the start and end points of the sample solely by ear. Two producers might edit the exact same kick drum with start times 100 samples (a fraction of a millisecond) apart. Were one of the composers to have recorded the kick at 45 rpm and pitched it down, the actual resolution for the start and end times would be different. When played in a sequence, these 100 samples affect the groove, contributing directly to the feel of the composition. The timing of when the sample starts playback is combined with the quantization setting and the swing percentage of the sequencer. That difference of 100 samples in the edit further offsets the trigger times, which even with quantization turned off fit into the 24 parts per quarter grid limitations of the machine.

akaiAkai’s MPC-60 was the next evolution in sampling technology. It raised the sample and conversion rates to 16-bit and 40 kHz. Sample time increased to a total of 13.1 seconds (upgradable to 26.2). Sequencing resolution increased to 96 parts per quarter. Gone was the crunch of the SP-1200, but the precision went up both in sampling and in sequencing. The main trademark of the MPC series was the swing and groove that came to Akai from Roger Linn’s Linn Drum. For years shrouded in mystery and considered a myth by many, in truth there was a timing difference that Linn says was achieved by delaying certain notes by samples. Combined with the greater PPQ resolution in unquantized mode, even with more precision than the SP-1200, the MPC lent itself to capturing user variation.

Despite these technological advances, sample time and editing limitations, combined with the fact that the higher resolution sampling lacked the character of the SP-1200, kept the MPC from being the complete package sample composers desired. For this reason it was often paired with Akai’s S-950 rack sampler. The S-950 was a 12-bit sampler but had a variable sample rate between 7.5 kHz and 40 kHz. The stock memory could hold 750 KB of samples which at the lowest sample rate could garner upwards of 60 seconds of sampling and at the higher sample rates around 10 seconds. This was expandable to up to 2.5 MB of sample memory.

s950.

The editing capabilities made the S-950 such a powerful sampler. Being able to create internal sample loops, key map samples to a keyboard, modify envelopes for playback, and take advantage of early time stretching (which would come of age with the S-1000)—not to mention the filter on the unit—helped take sampling deeper into the sound design territory. This again increased the variable possibilities from composer to composer even when working from the same source material. Often combined with the MPC for sequencing, composers had the ultimate sample-based composition workstation.

Today, there are literally no limitations for sampling. Perhaps the subtlest advances have developed the precision with which samples can be edited. With these advances, the biggest shift has been the reduction of the reliance on ears. Recycle was an early software program that started to replace the ears in the editing process. With Recycle an audio file could be loaded, and the software would chop the sample into component parts by searching for the transients. Utilizing Recycle on the same source, it was more likely two different composers could arrive at a kick sample that was truncated identically.

waveformAnother factor has been the waveform visualization of samples for editing. Some earlier hardware samplers featured the waveform display for truncating samples, but the graphic resolution within the computer made this even more precise. By looking at the waveform you are able to edit samples at the point where a waveform crosses the middle point between the negative and positive side of the signal, known as the zero-crossing. The advantage of zero-crossing sampling is that it prevents errors that happen when playback goes from either side of the zero point to another point in one sample, which can make the edit point audible because of the break in the waveform. The end result of zero-crossing edited samples is a seamlessness that makes samples sound like they naturally fit into a sequence without audible errors. In many audio applications snap-to settings mean that edits automatically snap to zero-crossing—no ears needed to get a “perfect” sounding sample.

It is interesting to note that with digital files it’s not about recording the sample, but editing it out of the original file. It is much different from having to put the turntable on 45 rpm to fit a sample into 2.5 seconds. Another differentiation between digital sample sources is the quality of the files, whether original digital files (CD quality or higher), lossless compression (FLAC), lossy compressed (MP3, AAC) or the least desirable though most accessible, transcoded (lossy compression recompressed such as YouTube rips). These all result in a different degradation of quality than the SP-1200. Where the SP-1200’s downsampling often led to fatter sounds, these forms of compression trend toward thinner-sounding samples.

converter.

Some producers have created their own sound using thinned out samples with the same level of sonic intent as The RZA’s on “Stroke of Death.” The lo-fi aesthetic is often an attempt to capture a sound to parallel the golden era of hardware-based sampling. Some software-based samplers by example will have an SP-1200 emulation button that reduces bit rates to 12-bit. Most of software sequencers have groove templates that allow for the sequencers to emulate grooves like the MPC timing.

Perhaps the most important part of the sample-based composition process however, cannot be emulated: the ear. The ear in this case is not so much about the identification of the hot sample. Decades of history should tell us that the hot sample is truly a dime a dozen. It takes a keen composer’s ear to hear how to manipulate those sounds into something uniquely theirs. Being able to listen for that and then create that unique sound—utilizing whatever tools— that is the blue note of sampling. And there is simply no way to automate that process.

Featured image: “Blue note inverted” by Flickr user Tim, CC BY-ND 2.0

Primus Luta is a husband and father of three. He is a writer and an artist exploring the intersection of technology and art, and their philosophical implications.  He maintains his own AvantUrb site. Luta was a regular presenter for Rhythm Incursions. As an artist, he is a founding member of the collective Concrète Sound System, which spun off into a record label for the exploratory realms of sound in 2012. Recently Concréte released the second part of their Ultimate Break Beats series for Shocklee.

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“Remixing Girl Talk: The Poetics and Aesthetics of Mashups”-Aram Sinnreich

“Sound as Art as Anti-environment”-Steven Hammer

What We Talk About When We Talk Girl Talk

Girl Talk by Justin Davis, 12 September 2008

Gregg Gillis, the mash-up artist who records and performs as Girl Talk, is always being talked about by someone. My co-author, Kembrew McLeod, and I risked adding to the overexposure by featuring Girl Talk as the star in the introductory section of our new book, Creative License: The Law and Culture of Digital Sampling (Duke: 2011). And yet, I still have more to say about Girl Talk. His latest release, All Day (2010), came out too late for us to cover in our manuscript, but it reflects some aesthetic and legal developments that are worth understanding. But first, I should explain sampling, mash-ups, and what makes Girl Talk so musically and legally interesting to talk about.

Sampling means using existing sound recordings as part of new sound recordings. I leave musical quotation, allusion, and other forms of musical borrowing (or appropriation, if you prefer) out of this definition. In other words, sampling means using sound waves recorded at an earlier time—perhaps (1) editing or manipulating them, (2) combining snippets of multiple existing recordings, and/or (3) adding sounds generated by the sampling artist herself—but using the literal sound waves as basic material nonetheless.

Mash-ups, in my parlance anyway, are a sub-category of sample-based music. A mash-up artist usually does not distort the samples too much; mash-up artists tend to combine just two or three samples at any one point in time—the samples remain recognizable to the listener. And mash-up artists tend to add very few (if any) sounds generated originally by themselves.

Many mash-ups juxtapose only two or three existing recordings for the duration of a typical pop song. Some versions of this approach involve a comical or unexpected juxtaposition, like Britney Spears versus Metallica. Other versions of this approach sound like the sort of thing you’d hear at a club; in other words, it describes something live DJs have done for a long time. Mash-up artists The Hood Internet, for instance, recently released a mash-up of rap artist Nicki Minaj and indie-dance group Hercules and Love Affair by DJ STV SLV (pronounced “deejay steve sleeve,” which I’m pointing out because I think it’s fun to say).

What is unique about Girl Talk is that each of his tracks involves a string of overlapping samples. In an average song like “Like This” from Feed the Animals (2008), he moves from group to group of sampled sources, from Beyonce versus LL Cool J versus Soul II Soul, to the Jackson 5 versus the Beastie Boys, to Pras (featuring Mya and Ol’ Dirty Bastard) versus Yo La Tengo, and so on. Girl Talk’s live performances feature Gillis with his laptop in the middle of an insanely sweaty dance floor. A friend who recently caught a Girl Talk set noted that sweat was condensing on the ceiling of the venue and then dripping back onto the crowd. In short, Girl Talk is high-energy club music.

After the release of Feed the Animals, Village Voice reviewer Tom Breihan famously labeled Girl Talk as “music for people with such severe ADD that they get bored listening to thirty-second song-samples on iTunes.” Breihan also denied that Girl Talk’s music had any “internal dynamics,” which I take to mean that Breihan thinks the music has no narrative arc of, say, loud versus soft or intense versus calm. In both these statements, Breihan’s position is that the samples that make up Girl Talk’s music are disconnected from each other. The samples provide amphetamine doses of nostalgia or energy, but they have no intertextuality or deeper meaning. Girl Talk’s samples are just rapid-fire collections of pop-culture references. Call this line of argument as the name-that-tune critique.

My view, however, is that there are patterns and meaning in Girl Talk’s selection and arrangement of samples. He consistently pairs rap vocals with retro music of the 60s, 70s, 80s and 90s, along with the occasional indie-rock and/or iTunes-commercial hit. Why are his groupings of samples interesting?

One answer is that the backing tracks in hip-hop songs have become stale. In the commercial music industry, sample licensing is required but prohibitively expensive. So Girl Talk is creating a collage in the background with the samples that rappers’ labels wouldn’t pay for or, even more likely, couldn’t have licensed from the copyright owner. This effect of copyright law on creativity is something that Kembrew and I detail in our book, especially Chapters 5 and 6.

Another answer is that Girl Talk finds the lyrical content of hip-hop far more interesting (or at least more provocative) than what’s being said in the classic-rock song. A similar point would apply to The Hood Internet, too, whose twist is that their pairing is almost always very contemporary hip-hop vocals mashed up with very contemporary indie rock. I can’t help thinking that one thing The Hood Internet is suggesting with their compilations is that some hip-hop backing tracks are too boring and some indie-rock vocalists have poor voices or nothing to say—so let’s mash-up the best parts of both.

So what to make of Girl Talk’s hallmark freneticism, the jumping from one group of samples to another group roughly every 20 or 30 seconds? No matter what, the point is that meaning—an argument over interpretation—emerges from the groupings of juxtaposed samples. First of all, meaning emerges when the transitions happen more slowly. The new album, All Day, begins with a two-minute-long pairing of Black Sabbath’s “War Pigs” against Ludacris’s “Move Bitch” (featuring Mystikal and I-20) and a few short snippets of various Jay-Z raps. The extra time to digest what’s happening tells the listener that the new album is more relaxed, at least at the start. Rather than a sprint, the new album has a longer narrative arc. Gillis may be responding to the name-that-tune critique, adding another dimension to the mathematical complexity of his recordings by varying the speed of his transitions.

More than a response to critics like Breihan, my observations about selection and arrangement as the source of Girl Talk’s musicality relate to his legal stance with respect to using unlicensed samples. Girl Talk and his label, Illegal Art, assert that using samples, transforming them, and placing them in a new context is “fair use.” Briefly, fair use is a doctrine in copyright law that allows certain uses without permission. For instance, a book reviewer can quote from a book without infringing copyright, at least up to a certain amount. Educators can use at least some portion of copyrighted works in the classroom. Transformative use is yet another category of fair uses. We know this category includes parody, thanks to a 1994 Supreme Court decision involving 2 Live Crew’s parody of Roy Orbison’s “Pretty Woman.” But the courts haven’t told us what else the “transformative” category includes. This is why Girl Talk and Illegal Art garner so much attention from the copyright law community.

The website for the new album has the following legal language at the bottom of the page:

All Day by Girl Talk is licensed under a Creative Commons Attribution-Noncommercial license. The CC license does not interfere with the rights you have under the fair use doctrine, which gives you permission to make certain uses of the work even for commercial purposes. Also, the CC license does not grant rights to non-transformative use of the source material Girl Talk used to make the album.

Creative Commons licenses are ready-made online licensing contracts. A Creative Commons license is a deal creators choose to make with the public, in which the creator gives the public certain freedoms but also requires certain responsibilities. It represents a less generous choice than simply leaving something in the public domain, no strings attached. But it is much more generous choice than asserting one’s copyrights in full.

So what can other people do with Girl Talk’s music under the particular flavor of a Creative Commons license? The short answer is that they can share and remix whatever he owns without getting advance permission. But wait a second. If Gillis’s music is comprised almost entirely of samples of other people’s music (which themselves can be sample-based)—in copyright-speak, if it is a “derivative work”—what exactly is he licensing to the public?

Derivative works created without permission, without being fair use, or without avoiding infringement through some other copyright exception, give their creator no copyright in the parts of the derivative work that include illegally used material. Section 103 of U.S. copyright law punishes people who make unlawful derivative works by denying them any rights. By asserting a compilation copyright, Girl Talk and his label are expressing confidence in their fair use argument. They are at least acting as though they would not be subject to the punishment of Section 103 because they claim copyright for All Day via compilation: Girl Talk’s particular selection and arrangement of samples. Compilations are a special type of derivative work. In other words, compilation copyrights inhere in the “thin slice” layer of creativity that represents the ordering, grouping, and timing of the music.

Meanwhile, Girl Talk is sampling hugely high-profile artists, and listing them on the website: the Beatles, Prince, U2, all of whom are known for asserting their copyrights. Take this together with Girl Talk’s confidence that he won’t lose his “thin slice” copyright under Section 103. We can see that Girl Talk is aggressively claiming fair use. He’s daring people to sue him. And this strategy seems to have made copyright owners less likely to sue.

Interestingly, the “thin slice” the law is concerned with is the same thin slice music critics worry over. My closing point is that the copyright analysis of Girl Talk’s work depends heavily on interpretation of his selection and arrangement of samples. Humanists, including those in sound studies, have a great deal to offer to this discussion. Does Girl Talk’s selection and arrangement rise to the level of “transformative” work? Do we need to settle the debate of the aesthetic value of Girl Talk’s “thin slice” before we can answer the legal question of fair use?

Consider the meta-observation that there are plenty of arguments to be made back and forth about whether Girl Talk’s selection and arrangements are good or bad, original or unoriginal, and so on. Does that observation in and of itself mean that something transformative has occurred? Or is that too cute—setting up a test that no mash-up could ever fail, since it takes only two listeners to have an argument over the quality of a piece of music?

It is a truism that copyright law fails to mesh well with creative practices. But copyright isn’t going away anytime soon. I hope this brief discussion has illustrated how crucial it is to have a continuing conversation among legal scholars and humanists.

Peter DiCola will be reading at RiverRead Books in Binghamton, NY (5 Court Street in Downtown) on Thursday, 4/21 at 6:30 p.m. in support of Creative License. Following DiCola’s reading there will be a roundtable conversation featuring several Sounding Out! writers: Jennifer Stoever-Ackerman (Editor in Chief), Andreas Pape and Osvaldo Oyola along with Daniel Henderson.

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