Categories
Creative Sound Projects Personal/ Relevant

Sound Manipulation & Vocal Experiments

Following on from my research into Musique Concrete, I had a lecture on creative sound that focused on capturing the voice in interesting ways. By combining these recordings with sound manipulation devices and layering on Ableton, this allowed me to practically experiment with many of the ideas that Schaeffer’s work encompassed, working with several techniques, some of which I had used before, yet with a renewed mindset on the expansiveness of sound. With only an SM57 at hand I was limited to its cardioid nature, yet testing this in different ways gave me a greater understanding of its polar pattern’s reaction to distance and material when recording my voice.

Whilst Musique Concrete typically labels music as a byproduct of experimentation with sound, I decided to instead incorporate elements of it into a musical context, keeping melody and rhythm as the focus. Composing only using sounds from my vocal chords as the raw material, these experimentations directed my composition style in a different way to which I would normally approach it, resulting in surprisingly interesting musical products.

In the first instance I created the harmonical backbone by layering these recordings in an instrument rack, mapping each sound to various sections of midi keys. Changing the pitch, reversing the samples and mapping the volume and frequencies of specific layers in the rack to macros I automated these qualities with the intention of creating some level of musical cohesiveness. The random nature of these recordings meant that the rhythms produced were unlike much of the musical work I usually end up creating.

https://soundcloud.com/user-232356095/vocal-experiments

In the second instance I placed more importance on sound manipulation by using automation on the Sampler’ LFOs to oscillate the pitch of certain recordings, whilst also using the loop length and rate as mod destinations in order to also automate these. I used delay for further rhythmic content and warping, cutting and rearranging, and crossfading the recordings also helped glue the material together in a way that stayed true to my aesthetic principles.

https://soundcloud.com/user-232356095/vocal-experiments-week18-csp-02/s-H0ivC95tIUK

This has been a very insightful practical experience into how experimentation with sound can leave the creator somewhat at the mercy of their material’s properties, unassumingly leading them to exciting discoveries and new ideas.

Categories
Creative Sound Projects

Musique Concrete

The french composer Pierre Schafer, a pioneer of experimental music, was one of the first to recognise the limits of traditionally recorded music and theory. His experiments with recording equipment, but most notably tape manipulation, are the main ways in which he explored these limitations, pushing past boundaries of what was widely accepted in music, ushering in a new age of musical experimentation

Using tape recorders in a creative way, Schafer set about changing the nature of recorded sound that society had grown familiar with. Conventional techniques of music production used on the machines at his disposal, such as the Shellac record recorder, mixing desk and microphones didn’t allow for enough alteration of the tonal characteristics of the sounds he was using to satiate his experimental aesthetic. As a result he started to study the characteristics of instruments on a micro level, in order to alter them in a more complex fashion. His careful analysis of these characteristics, such as attack, timbre, decay and speed, among others, and the way in which they were applied in mainstream music allowed him to come up with ways to change the attributes of sound entirely. Using principles of loop manipulation, Schaeffer composed a piece between 1949 to 1950 called Symphonie Pour Un Homme Seul that was made up of music using turntables and mixers that allowed him to create a symphony of noises, incorporating these techniques of sound manipulation, such as reversing a sound, sustained resonance and removing the attack of a sound.

A demonstration of Musique Concrete

The introduction of the tape recorder in 1951 facilitated manipulation of sound via speed variation and looping in a much more intuitive way. However it was the possibility of tape splicing, whereby bits of tape could be cut up and rearranged that fuelled a lot of Schaeffer’s future work, as well as the advancement of music production in general.

These works with tape manipulation and application of audio effects formed the basis of Musique Concrete, ‘a type of musical composition that utilises recorded sounds as raw material‘ resulting in montages mainly using, but not limited to, the human voice, natural environment, musical instruments and synthesizers without the restrictions of music theory pertaining to melody, harmony, rhythm, etc. This form of acousmatic music, where the sound is manipulated enough so that the audience has little clues as to it source became fundamental in the development of the musical genres that followed.

An example of techniques of Musique Concrete used in popular music

Whilst a lot of his early works strike me as a concoction of sounds arranged in a very chaotic way with, what I deem to be, a lack of musical intent, upon research I now feel as if the experimental intention behind these works are more important than the resulting non-music, as it forces the audience to see sound from a new perspective. If it wasn’t for Schaeffer, much of the presupposed meaningless of his musical arrangements may never have merged with traditional music to create the vast array of genres we have today. In a very direct sense, one such genre is that of Plunderphonics: ‘a highly controversial genre of electronic music that involves unashamedly sampling other people’s music or media to create new tracks.

I feel that Musique concrete’s inherent opposition to traditional forms of music also encourages creators to engage more inquisitively with the environment they find themselves in and the tools at their disposal, to discover alternate ways of producing sound and motivating us to understand our tools in a greater way. It teaches an important lesson in exercising more wariness with the associations to music that we have been conditioned to relate to.

References

Palombini, Carlos. (2002). Musique Concrète Revisited.

“Acousmatic Sound.” Wikipedia, 3 Dec. 2020, en.wikipedia.org/wiki/Acousmatic_sound. Accessed 15 Aug. 2021.

Henshall, Marc. “The History of Musique Concrète.” Sound Matters, 30 Oct. 2011, www.yoursoundmatters.com/musiqueconcrete1/.

“Musique Concrete | Music 101.” Courses.lumenlearning.com, courses.lumenlearning.com/suny-musicapp-medieval-modern/chapter/musique-concrete/.

“Symphonie Pour Un Homme Seul.” Wikipedia, 9 Feb. 2021, en.wikipedia.org/wiki/Symphonie_pour_un_homme_seul. Accessed 15 Aug. 2021.

Wikipedia Contributors. “Musique Concrète.” Wikipedia, Wikimedia Foundation, 15 Nov. 2019, en.wikipedia.org/wiki/Musique_concr%C3%A8te.

Categories
Creative Sound Projects

Listening as Activism: The “Sonic Meditations” of Pauline Oliveros

During a time of political tension between America and Russia, namely the Cold war, where America’s struggle against the spread of communism saw an indirect confrontation between the two superpowers, there was a widespread sentiment of worry regarding the potential threat this conflict could have on the future.

Pauline Oliveros, a pioneer of electronic music in San Francisco at the time, responded to these events by turning inwards via ‘Sonic Meditations’ with a goal of unifying people with a ‘humanitarian purpose of expanded consciousness’ through text based scores born from experimental private compositions focused on soothing and relaxing the mind and body.

In order to reconnect with herself amidst the global despair, Oliveros’ experiments with extended drones on her accordion led her to form sound and body exercises that she coined ‘recipes for listening’, through which she emphasised the importance of listening actively, as opposed to passively, as a form of self healing. Translating these into textual scores, one example reads “Take a walk at night. Walk so silently that the bottoms of your feet become ears.”

These instructions, eventually compiled into what we now know as ‘Sonic Meditations’, seems to me like a renewed way of self reflection that focuses on listening as an active pursuit, whilst incorporating traditional forms of meditation such as breath-work and Gong baths. However, although her work is widely known to revolve around the phenomenon of deeper listening, I feel that Oliveros’ work with kinetic awareness blurs the line between sound and movement. Whilst her intentions may have initially revolved around intent listening, does the involvement of movement not distract the individual from focusing all their attention on the sounds they are submerged in? Her idea, however, to incorporate movement came from her encounters with Tai Chi, a practice that primarily focuses on self healing, and with this knowledge it can be said that multiple sensory forms are intertwined if the main purpose is to remedy oneself of inner tension.

The term ‘body-centered politics’ strikes me as a very poetic description of her work as it leaves us with the notion that in times of political misfortune one can retain some form of composure within themselves, using listening and movement as a form of activism.

Moreover, the ensembles she formed in order to act out these meditations gathered in non-verbal meetings. On many occasions I have experienced an exchange of energy and emotions with others where no words were needed, and in many ways this made these encounters all the more powerful. As a result, I understand Oliveros’ necessity to exclude forms of verbal communication in order to create an atmosphere of heightened states of awareness and sensitivity to one another on a feeling level. She emphasised that music is a byproduct of the activity of experimenting on the self and that without the pressure of being involved in a performer/ audience axis a safe space is created for non verbal communication between its participants.

I feel that the dichotomy of existing in a divided state can be remedied by unifying with others. A collective oneness can be achieved, and perhaps help centre the mind and the body. An example of this comes to mind, where I engaged in a political protest at trafalgar square. The act of chanting and kneeling with thousands of other like-minded people not only emphasised the gravity of the situation at hand but the power people have when uniting in a common cause, and as a result fed me strength and confidence in my own abilities as a human being. This can also be seen in one of Oliveros’ meditations ‘Teach me how to fly’ where participants were asked to hum in unison via careful observation of their individual breath and a consequent exhalation of sound. The title is a quirky reference to the fact that this group exercise can sound like an airplane taking off. A mighty prospect when alone, yet an easy task when we join with one another. Going back to the notion of increased sensitivity to our fellow humans, these shared experiences can manifest our individual inner experiences, paving the way for acceptance from others and most importantly, self acceptance. In 1974, Oliveros wrote, “How many of you out there think you are in the minority? If everyone came out of the closet the world would change overnight.

A lack of control over seemingly despairing situations can lead us to respond by using the tools at our immediate disposal to create a safe haven for self healing. As a result it frees us to discover alternate ways of knowing ourselves in a deeper way, overcoming mainstream societal restrictions on how one should listen or move based on class, gender or nationality and connect with others in order to move towards a more accepting civilisation. Perhaps the most effective way of advancing as a species is by looking inwards rather than searching outwards.

References

Laima. “Deep Listening: Discovering Pauline Oliveros’ Sonic World with Laima.” The Vinyl Factory, 1 Apr. 2021, thevinylfactory.com/features/discovering-pauline-oliveros-sonic-world-with-laima/.

O’Brien, Kerry. “Listening as Activism: The ‘Sonic Meditations’ of Pauline Oliveros.” The New Yorker, 2017, www.newyorker.com/culture/culture-desk/listening-as-activism-the-sonic-meditations-of-pauline-oliveros.

Oliveros, Pauline. SONIC MEDITATIONS by Pauline Oliveros.

“The Vietnam War – the Cold War (1945–1989) – CVCE Website.” Cvce.eu, 2013, www.cvce.eu/en/education/unit-content/-/unit/55c09dcc-a9f2-45e9-b240-eaef64452cae/5ad21c97-4435-4fd0-89ff-b6bddf117bf4.

Categories
MIXOLOGY Personal/ Relevant

Envelop Plugins – 3 Dimensional Sound

While recording in Ambisonics has its benefits, using the open source audio production tools Envelop for Live allows one to create immersive sound in alternative ways.

Ambisonics audio, by nature, is a multichannel format. While Ableton, as of yet, is only equipped to use mono or stereo tracks, ambisonic files must be converted to an appropriate format before use, which can result in some loss of depth within the spatial image of the recording.

The Envelop for Live (E4L) devices allow us to extend the capabilities of Ableton, with the use of max for live, in order to create ambisonic audio within the DAW itself by working backwards. Instead of converting ambisonic files into usable stereo files for example, E4L’S devices allow us to convert these stereo files into ambisonic files.

Using the Source Panner Device, we are able to encode the audio source. It does this by positioning it in a 3 dimensional space, turning into an ambisonic signal, essentially working as a 3 dimensional panning device. Using a series of sends and returns we are then able to use the Master-buss device to decode the encoded audio, which is required for playback within Ableton.

Comparing this to the free Max for Live device, Surround Panner, that uses an XY control, similar to that of E4L’s Source Panner, to place audio anywhere in the surround field, I was confused as to what the difference was between the two, and what benefits the lengthier process required by E4L’s plugins to create a Surround Panner brought. Upon further research I have now realised that Ableton’s surround panner only allows one to create movement within a two-dimensional space as opposed to 3-dimensional that is enabled by the conversion to ambisonic with E4L’s plugins, giving way more depth the audio I have been working with.

Categories
Sound For Screen

Sound for Animation – Norman Mclaren

Norman Mclaren was a pioneering animator, director and producer in the 20th Century, utilising various forms of animation, visual music, pixilation and graphical sound.

His particular work with drawn-on-film animation I found to be very intriguing as he was able to give shapes a sonic identity. Unlike machines such as Oscilloscopes, that process and visually display the waveforms of a certain frequency, his method worked the other way round, whereby he used images to create sound. He realised that if a sound can make a pattern on film, patterns on film would make a sound. Hand-drawing various shapes directly onto film, he played them back on a Moviola, a device that allows a film editor to view a film while editing, to determine what each shape would sound like. He discovered that the size of these patterns and shapes controlled the loudness. The tone quality was controlled by the shape of the marks. And the distance between the shapes controlled pitch. He used these hand-drawn sounds to accompany his hand drawn motion pictures, giving them their own specially designed, tailored soundtracks. It is this method that allowed him to make works such as the visual animation ‘Dots.’

Categories
Personal/ Relevant Sound For Screen

You Were Never Really Here

Diegetic sound: ‘Any sound that originates from a source within the video or film’s world. It can be either on-screen or off-screen, depending on the source of the sound.’

Non-Diegetic sound: ‘Audio whose source is neither visible on the screen nor has been implied in the action. This can include narrators commentary, added sound effects or mood music in the background’

In the film ‘You Were Never Really Here’ directed by Lynne Ramsay and starring Joaquin Phoenix as its protagonist. Throughout the film soundscapes are used cleverly to enhance the narrative. What fascinated me the most was the real-time interaction between the characters and diegetic/ non-diegetic sounds and music. This combination produces an abstract, yet powerful effect in the film.

The first example that comes to mind is the scene near the very beginning of the film where Joaquin Phoenix’s character is sat in a taxi. As a song is playing on the radio, originally written by Johnny Greenwood for the film, the lyrics ‘you were never really here’ silenced, while the taxi driver mouths them. I find it akin to the narrative method of ‘breaching the fourth wall’ yet in a sonic sense, raising all sorts of questions such as whether the character(s) are a aware, in some shape or form, of their presence as a character in the movie.

Furthermore the melding of diegetic and non diegetic sound and musical scores are evident. The kinetic pace of the film is aided by percussive industrial noises from its urban landscapes, integrating with string sections and dissonant chords. Paul Davies sound design and Johnny Greenwood’s score fuse to create a coherent yet overwhelming, and at times cacophonous, soundtrack that envelops the viewer, putting us in a claustrophobic headspace, similar to that of the troubled main character.

Researching further into Paul Davies sonic techniques I found out that a visit to an exhibition at the Tate Modern , informed the way in he chose to display sounds in the film. An installation by the American artist Charles Atlas consisted of several video screens, placed not all in a line, but in layers with four speakers in front of them. A different sound of New York City sounded out of each speaker. Experimenting with this idea of different sounds from the same sonic family coming from different locations, he found that the resulting feeling was that of dislocation and rupture, which certainly fits the theme of the film, whereby the protagonist feels alienated from the rest of the world due to his trauma.

Furthermore, when recording the sound of a train to use in the film, Paul Davies and Lynne Ramsay noticed strang, eerie harmonic sounds at certain points within the recording. Isolation that sound, they used it elsewhere as a basis to create unease, ( It features right at beginning, over the logos) showcasing another example of how the industrial sounds of the city were smelted into the film to create said sonic landscapes.

A final example would be the scene where we can hear the dialogue of Joaquin Phoenix’s character’s and another figure over the phone, specifically a payphone. In reality this conversation would’ve been private, yet the decision to allow us to hear what is being said on the other end of the line creates a sense of voyeurism. An invasion of privacy that only lends further to the taboo nature of the film.

This reconsidering of the border between diegetic and non diegetic sounds blurs the distinction between score and sound design, and is a technique I aim to explore in future work.

Categories
Personal/ Relevant

Ambisonics

In a stereo mix, if sounds are simply moving, this alone can be enough to stimulate our brains to stay engaged. Ambisonics, first developed in the 1970s, has had a recent resurgence due to the possibilites it offers in immersive audio for Virtual Reality. Ambisonics allow us to create a 360 degree sound field that can be decoded into a number of different formats

Most of the time when recording, we typically use two mics, forming whats known as an X-Y configuration. When played back, one mic goes to the left channel, while the other goes to the right creating whats known as stereo playback.

Yet we can also record in stereo using other methods such as Mid-side recording. In this technique a cardioid microphone (top) is recording the middle sound while the other mic (Bi directional) records both sides in a figure of 8 pattern. Since one mic is recording the centre space and the other is recording the sides, it would not be aurally viable to just assign them to the left and right speaker as we would with stereo recordings. As a result, the signals need to be added together and decoded. This is also the case for Ambisonic recordings.

With the mid side technique, two microphones create one dimension of audio – left and right. For ambisonic recording all we need now in addition to left and right is another bi directional microphone for front and back and another for up and down, giving us a 3D recording.

Most ambisonic recorders, such as the H3-VR, don’t use bi directional microphones. Instead they have 4 cardioid microphones set up in a tetrahedral mic array. This creates 4 audio tracks that we combine together to create a 3d sonic image .

The raw recording from one of these tetrahedral microphones comes in the form of a file known as the A-Format. These files are 4 channel audio files that contain the input of each mic in the tetrahedral array.

With the ambisonic tetrahedral array, the mics are separated into mid, side, up/down and front/back. More specifically they are normally labelled W for the centre omni-directional channel, X for the bi-directional front and back, Y for the left/ right and Z for the up/down.

Moreover, another file format known as B-format ambisonics, are essentially A-format files that have gone through one stage of conversion. There are two types of B-format files, namely AmbiX and FuMa. They order the channels in differeing ways and have different relative amplitudes so it is important to inspect the software or programme you intend to use the ambisonic files with, and understand what format is appropriate. One can convert AmbiX, FuMa and various other file formats between each other using softwares such as the Zoom Ambisonics Player or the downloadable Ambeo Orbit conversion tool.

Recording with first the tetrahedral mic array is known as first order Ambisonics. When more than four mics and audio channels are used, the resulting recording is known as higher order ambisonics. The additional tracks help create a fuller 360 degree sphere of sound, filling in the diagonal dead spots between the microphones.

Furthermore, ambisonic files must be decoded for playback. The great thing about ambisonic files is that they’re not channel dependent. This means that an ambisonic file can be decoded into any number of speaker configurations ( stereo or quad for e.g.)

Ambisonics offers us an intuitive way to of recording and hearing the sounds around us in a very realistic fashion. It use in immersive and virtual environments may hold answers to some of the future and contemporary audio challenges.

After going on a sound-walk with the H3-VR, I was able to familiarise myself with many elements of ambisonic recordings, such as the mics test tones and the various formats in which I could record in. I also experimented by recording certain sounds using different mic positions, specifically front facing, upside and end fire, in order to get a feel of how the recordings respective stereo images would differ when played back.

Categories
Global Sonic Cultures

Idents (Sonic Branding)

Idents: A sonic identification or label of a specific brand, device, tv channel/ program, etc. They typically last for about 10 – 20 seconds and are a clever device for marketing products as these ‘audio logos’ are recognised globally, despite differences in language. Some of the most famous idents are that of Brian Eno’s idents for Microsoft.

The link above is a short clip of audio I composed in Ableton a while back. Struggling to describe it’s nature to others I kept on referring to it as ‘introductory cinema music,’ yet after having learnt about sonic branding, ‘Ident’ seems like a much more fitting name.

Categories
DEVICES Personal/ Relevant

Convolution Reverb

Convolution Reverb Pro is a sample based Max For Live device that allows one to digitally simulate the reverberations of a particular space from the real world, referred to as Impulse Responses (IR), to a sound, creating the illusion that the input was recorded in that space. It is essentially the process of filtering a source sound through a digitally stored room sample. The application of this can give a sense of roominess, but also tonal character and width.

The method used to capture the reverberations of a given space involves playing a loud sound, such as a gunshot, into an area, phasing it out and thereby leaving us with a sonic footprint of this space. This makes convolution reverb an invaluable tool compared to other, more standardised versions of digital reverb that typically use algorithms to simulate acoustic reverb.

I experimented with this by convolving a sample using a kick drum as an impulse response. I found I was able to accentuate the low frequencies of the kick within the sound of the sample, while also dampening the frequencies of the sample that aren’t in the kick IR File. This served as a useful tool, allowing me to achieve a clearer bass sound without having to use a low-pass filter which would have cut many of the samples harmonics.

Used creatively, this device allows one to explore various spaces of sound, including unconventional ones such as the kick I used, to introduce a whole new texture to a sound or body of work. Furthermore the same device facilitates the combination of two IRs, in early and late reflections respectively. This hybridisation of multiple space further adds to the versatility of the Convolution Reverb Pro.

Another interesting thing I found was that Ableton’s Hybrid Reverb actually combines both convolution and algorithmic reverbs.

Categories
DEVICES Personal/ Relevant

Shimmer Reverb

It is often found that artificial reverb effects use some combination of echoes with short delay times to recreate the acoustics of a particular space. By introducing enhanced harmonics of the input signal during the reverberation process we can create a shimmering effect. One such example of this would be to use real-time pitch shifting with feedback delay to acquire said harmonics.

Instead of using the shimmer reverb VSTs downloaded on my computer, I set about trying to recreate it myself, using Ableton’s stock plugins. Drawing up an Audio Effect Rack, I created an effects chain. It consisted of a Reverb, Grain Delay, Ping Pong Delay and another Reverb, in that order, as the distillation of ingredients in a shimmer effect is the combination of a sound diffusing (Reverb) whilst the resulting diffusion shifts in pitch (Grain Delay). I further spread this diffusion out with the following reverb and some slight delay.

Firstly, bypassing the first instance of Reverb, I went about setting the frequency of the Grain Delay to about 5Hz, taking the pitch all the way up to 12, and leaving its random pitch and feedback setting to 0. I altered the dry/wet mix to 75 percent and unchecked the sync box, allowing me to set the delay time all the way up to 128ms.

Turning the first Reverb back on, I increased it’s size and also the decay time to about 10 seconds. After applying some input processing by cutting out a little bit of the lows I brought the modulation speed up to just above 1Hz in early reflections. I then increased the volume of the diffuse slightly, all of which made the Grain Delay’s pitch shifting a little less prominent in the mix. The Ping Pong Delay, just after the Grain Delay also helped spread things out in the stereo field, so that nothing about the resulting shimmer effect was too centred, in order to achieve the appropriate ambience, allowing it to flourish in the background. Using another instance of Reverb at the end of the effects chain, with similar processing to the the one that preceded it, I continued to tweak settings, such as the feedback, in order to explore and apply more characteristics to the shimmer, aiming for a ethereal, cavernous feel.