How to make contact microphones



Here's a short overview of how to make your own contact microphone using piezo crystals.

This technique was taught to me by Alan Lamb when we worked together as part of the 2006 Unsound Festival. He'd developed this approach for recording 'the wires,' a large-scale aeolian harp modeled on telegraph poles he recorded in Western Australia.



I'm using a couple of piezo sensors (RS part number 285-784), an RCA lead, a soldering iron, scissors or wire strippers, some tape and half a dozen cable ties.



Start by cutting the RCA lead in half and stripping the wires.



Then get ready to solder the two connections on either side of the piezo onto the wires of one of the RCA leads.



The tricky part is soldering and it's worth double-checking you've got the connection firmly soldered before proceeding.



Once the piezo are attached, you need to insulate the wires again.



I use electrical tape and carefully wrap it around one wire and then around both.



Once insulated, I attach the wires and piezos to matchsticks with cable ties.

You can use glue for this but I couldn't find anything suitable today. Alan used a sealant to weather-proof the piezo after gluing them to 'the wires' and this can extend their life considerably.



These piezo contact microphones are great for a wide variety of applications.

Today I tried using them to record a biscuit tin being used as a hand drum. I've used blu-tack to apply them but you can also sticky tape them onto a surface for temporary application, or longer depending on the tape used.



One common problem is a humming sound, which can be eased or removed by earthing the object being recorded. The biscuit tin was earthed when I held it but the Zoom H4 recorder also needed earthing by sitting it on my lap.

You can hear a short demonstration of the biscuit tin hand drum recorded in stereo with two piezo contact microphones below.

Biscuit tin drumming by bassling

Enticknap Park



This week I visited Enticknap Park for my remix project. It has a smallish playground with swings, see-saw and the same type of slide as Wandoo Playground, Waipukurau Park and also Ramponi Park.

It was a bit of a challenge to make this track. I think I'm beginning to get a bit bored with the similarity in the sounds I've collected and it'd be nice to find something inspiring to manipulate but I've held off on visiting some of the bigger parks until I get a new microphone that's on order.

Finding the sweet spot

While working with Alan Lamb in 2006 as part of the Unsound Festival, I mentioned that I'd been thinking about recording the water distribution tank that shared the hilltop with 'the wires' he and Scott Baker had built outside Wagga Wagga in 2004.

Alan encouraged me to put a bead on the end of a wooden skewer to tap around the structure and locate harmonics. It was the first time I'd considered that physical objects other than guitar strings and 'the wires' had harmonics.

This thought returned to me while recording Wandoo Playground and I've been spending more time finding the harmonic sweet spots to place the piezo pick-ups and to tap for creating sounds.

These harmonics form and integral part of creating tracks from the playground equipment and contribute to the melody and chordal progression.

Playground recording kit



This is the gear I've been using to record sounds at playgrounds recently.



These are Daphon brand piezo pick-ups. I bought them from Swamp Audio.




A first generation Zoom H4 and a Fishman transducer, which works like a microphone pre-amplifier and equaliser to increase gain and shape the sound.

Usually I beef up the bass since I'm recording with another pick-up also but I've long thought that piezo sound a bit weak -- which is what led me to experiment with guitar pick-ups on the large-scale aeolian harp built by Alan Lamb and Scott Baker.



A pair of closed headphones are essential, of course.



The small pouch from my friend Janine Middlemost holds spare batteries and SD cards, while the bag holds everything together while I'm riding around town.

Just noticed that both the pouch and the bag feature mushrooms, which is an interesting coincidence and makes me wish I had a magic mushroom story to give it relevance.

For the videos I'm using a Nikon D5100, usually with an old Nikkor 35-70mm f2.8 lens and a tripod.

P.S. Just read this interesting post on contact mic recording and it's worth having a look if, like me, you wonder why piezo sometimes sound a bit weird.

Mountford Park



Here's the result of my visit to the park that's at the heart of Leeton and the setting for many town events, like the upcoming Light Up Leeton concert for Christmas. I've stuck to the playground here though.

Wandoo Playground

On Saturday I braved the hot sun to visit Wandoo Playground to record another park to remix. I think this spot also goes by the name Griffin Park because it was created by Walter Burley Griffin when he was consulted on the design of Leeton.



You can see from the video that I only used sounds from the slide and a wooden bench. The sign for the Playground has a good pitch but my pick-ups wouldn't fit onto the frame.

The day was hot so I left with only a few recordings but I must be getting better at hearing what's likely to be used because I'm pretty happy with the result.

Wiradjuri Park

After Waipukurau Park I opted for a playground with more equipment to find new sounds and inspiration for this, the second track I've created as part of my Leeton park remix project.



While the sounds were all recorded on location, they have been re-pitched, looped and stretched to create the track. Sadly my camera battery ran out before I could show how thumping the plastic slippery slide provided the sound used for a kick drum.

Waipukurau Park



With Leeton planning celebrations for it's centenary in 2012, I've been developing an idea to record a series of songs based on sounds recorded at parks in the town.



On Sunday I tried the playground at the end of my street in Waipukurau Park. Armed with my Zoom H4 recorder, a Fishman pre-amplifier and a peizo pick-up, I sought recordings to be manipulated into percussive or musical tones.



One of the fittings holding up the swings is loose enough to squeak.



The seat gives a nice thunk.



The stairs really tinkle.



And this fence resonates wonderfully. You can hear my first draft of the song by clicking below.

Waipukurau Park by bassling

Playing a part

This week I worked on another interesting project that originated on the Ninja Tune Forum.

It's a remix of a remix and the idea is that each participant remixes the previous participants work and passes it along. At the end, the original track and the successive remixes are collected together for release.

It picks up on some of the methodologies of other Ninja Tune Forum projects.

When I first started visiting the site about a decade ago there were regular remix competitions, where the winner would provide the track and parts for the next round.

Another inspiration would be the relay mixes, where each participant is given the previous section of a mix to follow on from and only hears the complete mix once it is stitched together at the end by the person overseeing the project.

These Forum projects are organised by people on the Forum and not the Ninja Tune label but some of the label's artists have taken an interest in the results and there have also been opportunities to work Ninja Tune tracks.

There's a large output of mixes and original music on the Forum and I think it's testament to the creativity and collegiality of the people on there. It's a great community.

My recent remix was an interesting challenge because the parts lacked a melodic component to link it back to the original tune.

Another challenge was my position as third. It's not usually the point in the sequence of an album where you find a big track, more likely something that lets the pace ease up a bit so you can ramp it up again before the end of the first side or slow it down further for a ballad.

I know it doesn't have to be a dud spot but I can see a lot of logic in that sort of progression and it's a view shared in the film High Fidelity:

You gotta kick off with a killer, to grab attention. Then you got to take it up a notch, but you don't wanna blow your wad, so then you got to cool it off a notch. There are a lot of rules.


This reminds me of an interview I did with Canberra DJ Ben Henderson a while ago. He was organising music nights at Montezuma's Restaurant at the time and explained his philosophy in picking tunes by saying that one needs to be conscious of their part in the line-up.

"To me the ideal night involves getting a group of people together who share common tastes and building them up for a climax," says Ben. "You point every track you play towards that pinnacle. There's no logic in getting five DJs together and having each of them trying to get to the finish line. It used to be that DJs would spend six hours gradually building up to that one moment when everyone would go off. It's like a competition these days in which everybody gets up and does a 100-metre sprint as each DJ pulls out their five best tracks to impress the crowd."


So I set about remixing the track to be a build-up while giving a treatment that fits with my ideas of a bassling sound, particularly in emphasising the lower register.

I'm looking forward to hearing the final release to see if I've managed to play my part.

BAD DAD on the six-string electric bass



This six-string bass guitar has intimidated me every since I bought it on Ebay. The neck is so wide that I find I get lost while playing on it.

It's been good for creating a drone though and the other day I thought it would be interesting to tune it to BADDAD but mostly just because I think it's funny to say 'bad dad'.

As it turns out it's better tuned to BEADAD, which also sounds funny. 'Be a dad' -- it's like an encouragement to fertility, a variation on 'go forth and multiply'.

In practice the six-string bass guitar tuned BEADAD is a lot of fun. It reminds me of noodling on a mandolin, the right notes seem to appear under your fingers although it runs the risk of all sounding a bit same-ish.

Disco bassling



Here's a funky house bassling tune with a disco bassline that I recorded earlier in the year while on holiday at the beach.

Humankind is noodle kind. by bassling

Backyard bubbles



A short video featuring a recent trackthat I made while trying out my new Nikon D5100.

Cut, now PLAY!



This is the result of the innovative Cut & Run project I wrote about earlier. Fascinating to hear how different producers have mutated the previous bars.

Cut & Run

I've been visiting the Ninja Tune Forum for about a decade now. Aside from being populated with some great people, it's populated with greatly talented people who share a love of music.

There have been many excellent outcomes from hanging out there, from remixing other people's tunes to being introduced to new artists through to these increasingly creative collaborative projects. I've been part of relay mixes and different types of challenges but I think the Cut & Run project I did this week is one of the most innovative.



Update: hear the result here!

DIY pedal



Good looking pedal, dunno much more than the band were Petuey. This was an early gig photograph, one of the 'fests in Canberra of the early '90s.

Nano Muff



A Nano Muff pedal arrived in the post today and I'm surprised they resisted the urge to print puns all over the packaging.

How does it sound? Nice warm distortion. It's not as creamy and thick with sustain as my Giant Cooter but hopefully it'll get along with the other pedals on my daisy chain better.

bassling mobile sound system



Here's the start of a sound system for a bicycle. It's a crappy little plug-in stereo that runs on AAA batteries that I've adapted with a pair of bigger speakers.

Next step will be attaching these to a bike.

Last Christmas

Last Christmas by bassling

Here's a cover of the Wham classic I recorded in '93 and have been sharing every festive season since. Enjoy!

Yamaha RM1x





This baby really is full of techno. As well as gabba, breaks, trance and house.

Yamaha manufactured the RM1x during the mid to late 1990s and IMO this was the golden age of electronic dance music.

From big beat to trip-hop, the dub-influenced Leftfield through to the unique aesthetic of Boards of Canada. Basically from 1993 to 1998, some of my favourite albums were released.

The RM1x reflects a lot of this period but, more importantly, the period reflects a bit of the RM1x. As you go through the presets you find many sequences which sound very familiar from tracks as well as advertising.

Trippy

trip-hop by bassling

This has been a surprisingly popular song. Maybe my best since Postal.

In the corpse's embrace



This is kind of tenuous but it spins me out a bit that a song I wrote inspired by a project planned for an event in 2003 ended up sounding a bit like an album I heard in 2009 that was recorded by a guy who appeared at the event six years earlier.

Let me explain.

In my previous post I mentioned Oren Ambarchi, I'm a big fan of his album In The Pendulum's Embrace -- although sometimes the compression on the bass upsets my tummy.

Oren's album reminds me of a tune I wrote in 2003 called Stripped Corpse, a fairly experimental sorta track compared to the dance music direction of the rest of the SHAKES album.

In 2003 I first heard about Oren from people in the Wagga Space Program and saw his talk at their Unsound Festival on the DVD thanks to Scott :)

Stripped Corpse had been inspired by a Space Program project based on the Exquisite Corpse parlour game invented by André Breton and the Surrealists in the 1920s.

When I recorded the track in Ableton Live I was literally thinking 'If I'd contributed a track to this Unsound CD, what sort of track would it be?' The tempo change through the piece came about later though because I wanted to use it to link Mumblesings and Slumber on the album.

Workshop with Stephen O'Malley and Oren Ambarchi



There was a concert and workshop in Cootamundra last weekend featuring a couple of my favourite artists, Alan Lamb and Oren Ambarchi. I've gained a lot of experience from Alan over the last five years but this was the first time I'd seen Oren other than his talk on an Unsound DVD and this live video.

With over 100mm of rain falling in the days leading up to the event, it had been scaled back due to the potential for danger on the unsealed road out to the site. So, rather than starting with a demonstration of Alan Lamb's wires on the Saturday, it began with the concert on Saturday night.

The evening began with an introduction to the work of Dr Lamb and a 25-minute collection of his recordings and those of Dave Noyze. I'd only recently heard a few of Alan's albums because they're out of print and I've avoided listening to Dave's work because I've been working on my own recordings of the wires that Alan and Scott Baker set up outside of Wagga Wagga. Since finishing a three-hour compilation of my recordings in February I'd been meaning to hear what's been happening in Cootamundra and this set showed a lot of variety.

It opened with a recording of Alan bowing against a backdrop of the wires building in intensity. Then moved on to a soundscape like a laser battle that was the 1km-long wires during rain. This was followed with either a recording of the wires humming against a dawn chorus of birdsong, or a series of chimes playing along the wires, then some more humming. The chimes sounded great, beautiful tones reverberating up and down the long stretch of the wires.

The intermission featured some wines from Charles Sturt University, their cabernet sauvignon was as light as I remembered but there was more of a character that makes me think of granite.

Then we were ushered back into the dim theatre as Stephen O'Malley and Oren Ambarchi improvised 40 minutes of guitar feedback. That might sound like an endurance test but it was awesome to have so much guitar tone wash over me and to get a sense of their interaction and how the subtle modulation was achieved.

The next day began with a workshop led by Stephen and Oren in which they detailed their set-ups and discussed their approaches. It was great for me because I've had a shortage of people to geek out with about guitar pedals and amplifiers.

Stephen discussed the challenge of created tension and release with guitar feedback because you open with the volume at eleven. He also explained how he uses an Fm tuning with a low A and what his effects do.



In the photo above you can see two Rat distortion pedals on the left, a box which splits the signal off to two (or maybe three) amps, a smaller box which splits the signal off to either a Roland Space Echo 201's delay or reverb (not pictured) or the Holy Grail reverb next to it, which is connected to a (Keeley?) compressor. He was using to Fender Twin amps and also a Ernie Ball volume pedal which isn't pictured.



Also connected were these sampling pedals, which apparently could record up to three minutes. I asked how much of the sound in the concert was layered feedback and Stephen said there was very little layering.



In comparison Oren Ambarchi said he tuned to an open A chord, also with a low A. The drone of that bottom string no doubt assisted the feedback, which Stephen directed by moving his guitar in front of the speaker a bit.

Oren had a Holier Grail reverb, an 8-second delay Alessis unit, a 16-second Electro Harmonix pedal and, on the ground, another delay, a ZVEX distortion (these last two Oren said he picked for their size), a volume pedal and a DOD King Buzz distortion. I think that's a tuner on top of the rack unit and on the far right is a Soundcraft Spirit mixer which he adjusted throughout the performance.



The delay above seems to be used a lot in his playing as well as the video I mentioned earlier and he'd slide the sliders to shape the sounds. The Ampeg amp was used for the direct sound, while the delayed sounds went through the Fender.

He mentioned that he'd had to leave two ring modulators at home due to flight baggage restrictions and that he used a Digitech Whammy pedal to get those bass tones you hear on his recent recordings. I'd wondered how he got those tones because on the album In The Pendulum's Embrace they sound so clean, like sine tones. Turns out they're harmonics dropped two octaves.

It was great watching Stephen O'Malley and Oren Ambarchi creating their sounds and improvising together. The rich and varied droning feedback made my body hum in a way similar to listening to the wires when they're amplified and I really dug being able to watch, learn and ask questions.

Delay effects



Delays are used to create a lot of different effects aside from the obvious one. This table from an old Ibanez unit gives an overview of how the delay works to create various modulations.

Slumber



One of my first film clips for the track Slumber from my first LP, SHAKES.

Click on the link above to download the album for free.

Orange pedals



Orange pedals look best.

Wandered

Here is a draft of a tune I've written called Wandered.

It's a bit glitchy and reminds me a little of Boards of Canada -- although it doesn't have their awesome drum sounds. (I was listening to their earlier albums today and noticed the distortion and sometimes delay on the drums.)

Wandered by bassling

The opening drone reminds me of the wires a bit. It could use some birdsong to reflect the theme of the lyrics in the original.

Lyrics? Yeah, it's got them. Here's an earlier draft of this track:

Wandered by ShowcaseJase

I like this



Cool to see other people responding creatively to the potential of aeolian harps.

Water cooler recordings









It's good to hear how things sound through different microphones and I'd been meaning to try and capture the sound of the water cooler glugging. This was the last bottle of water that we're getting so I didn't give myself much opportunity to set the levels before hitting record.

The glug sounds good though.

Water cooler by bassling

Strung out

Aeolus Salute by bassling

Here's a track that will be part of my next album, STRING. I'm planning this to be a collection of manipulated recordings of 'the wires' and tracks influenced by the droning sounds of this unique instrument.