As with all binaurals like this, moving your head is a problem and produces some cable movement noise. Roland have provided a slip knot type ring on the headphone cable which holds things a bit more securely but not a solution to the problem. The microphones come with silicon earbud fittings. I’ve swapped these for foam based fittings and I’m unsure whether this is an improvement or not. These recordings are using the standard silicon earbuds.

All recordings using Olympus LS-5 using a variety of settings. Getting the setting was a problem although combined with the limiter on the LS-2, the microphones handled sudden noises quite well. Handling wind noise was a real failure.

Recording 1

Street recording, busy traffic and people. LS-2 set with low gain and mid recording volume.

Roland CS-10 test recording 1

Recording 2

Wind noise a problem with low cut turned off. Olympus set in high gain with mid recording volume.

Roland CS-10 test recording 2

Recording 3

A quieter recording inside the London Underground station at King’s Cross, London. Low cut is on, gain setting high and mid recording volume.

Roland CS-10 test recording 3

The announcement can be made for a number of reasons, and is used to alert transport staff to an incident without causing panic in what are usually, crowded and congested areas – the last place you need a stampede.

Wikipedia has an interesting article on the subject here.

Aircraft Sounds on Mobile website

The site is available from Aircraft Recordings on Mobile

“Optimised” for iPhone OS but should work on everything else too.

Let me know what you think!

More information available from my field-recording Supermarine Seafire page.

It was a screen based brick game, short playing time, repetitive and above all very, very additive.

Some rules I set: must be about a minute long, must compress into 1mb mp3 without losing definition, must be loopable

So here are the first 5, 1 minute long, tracks I came up with. The game has 12 screens, so I’m going to be a bit busy (as well as trying to remain original) to do the rest.

Track 1: This is used as the first screen track, also for the menu

Track 2:

Track 3: Some ‘dramatic’ orchestral samples

Track 4:

Track 5:

The EU notes that safe use depends on exposure time and volume levels, “At 80 dB(A), exposure should be limited to 40 hours/week. At 89 dB(A) exposure should not exceed 5 hours/week”.

The picture below was taken during the display.

Bristol Fighter, August 2009

I spend a lot of time any money making sure I get equipment that records at the highest rates and greatest depth – much of this definition is then thrown away when distilling down into mp3.

Reading about what other recordists think and do, recording at inaudible frequencies is to enable a record to be made that can be used in the future using future tools and devices – considering this and the fact that compressed audio is ‘stickier’ (easily stored, easily interpreted), what is the point of high quality?

And a spectrogram of the recording.

P-51 Mustang Janie Spectrogram

And a spectrogram of the recording.

P51 Mustang Marinelle Spectrogram