two archive releases featuring tracks recorded with JrF c-series contact mics:

'In the Field'

an essential book on the art of field recording, featuring conversations with key artists:
Andrea Polli
Annea Lockwood
Antye Greie
Budhaditya Chattopadhyay
Christina Kubisch
Davide Tidoni
Felicity Ford
Francisco López
Hildegard Westerkamp
Hiroki Sasajima
Ian Rawes
Jana Winderen
Jez Riley French
Lasse-Marc Riek
Manuela Barile
Peter Cusack
Steven Feld
Viv Corringham

£12 + postage

to order - see ordering page
recently the artists Sebastiane Hegarty and Dr. Simon Park attempted to dissolve one of my hydrophones in sulphuric acid - an experiment that not only resulted in some interesting sounds but also in the surprising fact that the hydrophone survived !

here's the post from his website, where you can also listen to a sound sample:

I recently visited the chemical abode of Dr. Simon Park with the nefarious intention of immersing a hydrophone in Sulphuric acid and listening as it recorded the sound of its own dissolve into silence. I provided the hydrophone and Simon provided the acid (also known as oil of vitriol), along with the appropriate protection of gloves and goggles. We decided to conduct the experiment outside on a garden table, its surface protected from harm with a copy of the Sunday Times supplement, featuring Princess and sprout.
Unfortunately, this vitriolic and potentially expensive experiment failed, the Jez Riley Frenchhydrophone quietly surviving all attempts at chemical destruction. However, we were able to conduct other experiments into the sonification of chemistry. Simon has recently been encasing deceasedbumblebees in the blue sarcophagi of copper sulphate crystals. Knowing the anhydrous properties of the compound, Simon suggested we listen to the compound (also known as blue vitriol) quenching its thirst for water. As he dropped the white powder into a plastic container of water, we could hear the exothermic reaction, as energy was released in a short, but deep blue fug of sound. Using a pipette we dripped precisely measured droplets of water onto a hydrophone covered in the compound, producing sonic eruptions of blue like tiny burns in the surface of audition.


also now available to read online:

article on Chris Watson in the December 2012 issue of Music Tech magazine, in which he mentions & shows uses for JrF contact mics & hydrophones (thanks Chris !)
I'm now able to supply those great DPA mics to UK customers including the worlds best omni-directional mics:

SMK4060 kit with mounts, xlr adaptors etc.

SMK4060 Stereo Mic Kit w. 4060

The SMK4060 Stereo Microphone Kit is a cost-effective and flexible stereo recording solution aimed at project studios and for discreet mic setup on stage. 

The SMK4060 combines two DPA 4060s omnidirectional miniature microphones, Hi-Sens, with a variety of mounting accessories. These include the BLM6000 Boundary Layer Mount, which can be used in conjunction with a 4060 (or any of DPA’s miniature mics) to place the mic on a reflective boundary such as a floor, wall, ceiling, piano lid etc, enabling them to capture the ambient sound of the area. The sound captured from this “pressure zone” has higher sensitivity, clarity and intelligibility compared to the sound captured from the "free air" and serves as a kind of acoustical zoom. 

Also included in the kit is among others the DMM0007 soft rubber holder. This allows all kinds of instruments, from acoustic guitar through grand piano to drums, to be mounted in the best-sounding position, using special non-marking adhesive discs 

Also available as SMK4061 with a DPA4061 Miniature Omnidirectional Microphone, Lo-Sens.

What is in the boxThe DPA SMK4060 Stereo Microphone Kit contains:

2 x 4060 Omnidirectional Mic, Hi-Sens, Black, 3 meter cable, high boost and soft boost grids
2 x BLM6000-B Boundary Layer Mount, Black
2 x DAD6001-BC MicroDot to 3-pin XLR (P48) w. Belt Clip
1 x DMM0007 Universal Surface Mount, 5 pcs.
2 x DMM0011-B Magnet Mount, Black
1 x DUA0560 Windscreen, Black, 5 pcs.

PRICE: please email me for a quote
(the price will be very competitive)

to view the entire DPA range visit the DPA website here.


valued customers (past, present & future !),

here in the UK, the good old british post office have decided in their wisdom that with all the pressures on individuals & small businesses that the time is right for a triple whammy of price rises.

1) on April 2nd they put basic prices of parcels up along with the cost of recorded delivery etc.

2) they also changed the size & weight limits, pushing anything but very slim parcels into a higher price bracket.

3) they also reduced the compensation level of all items sent without using higher cost, recorded services (my rant on this is that if claims for compensation from lost or damaged parcels are costing them too much then they should improve the service not pass the cost on to the senders, who have been let down by the service on offer).

They put prices up every year & for the last 2 years JrF has decided to either not pass on the price rise or to subsidise the added cost by taking some of the hit.

However, these latest 3 price changes mean that I will have to take a look at prices & look at ways to at least cover the actual costs of postage as they now stand. A quick example is that a parcel that used to cost £1.80 & have included insurance (in case of loss or damage) of up to £50, would not cost over £5 at least, depending on the size.

I'm going to take the rest of April to monitor the impact of the post office price rises & then make a decision.

I want you to know that I don't want to put my prices up ! I want to carry on supplying good products & service to enthusiastic people with an interest in sound exploration. I hope that any price rise forced on me by the post office won't impact on customers ability to order. 

It does seem odd to me that at a time when the post office should be improving their service & making every effort to support economical growth they have chosen instead to make the decisions they have. 


a selection of recordings made by various recordists using JrF contact microphones, hydrophones and coils:

Sigur Ros are currently on their world tour & using JrF c-series contact mics - here's a video their percussionist has just sent me showing / hearing them in use ! 


new series on Channel 4 - sound by Chris Watson using JrF c-series contact mics to listen in on the internal sounds of various animal & insect eggs:



firstly, some of my c-series contact mics are currently on use on the tour by Icelandic group, Sigur Ros.

also, here's a video of a performance by David Ikard, using some of my d-series hydrophones & c-series contact mics.


a test of my hydrophones carried out by Gregory Ovenden (thanks !)

Testing two different hydrophones constructed by Jez Riley French.
Left channel is the new D Series, and Right channel is it's predecesor.
The sound of water flowing downstream.
Recorded to Fostex FR2 LE