Tag Archive: mp3


Roland CS-10EM binaural microphone tests

I’ve recently bought a set of Roland CS-10EM binaural microphones. Here are a few test recordings. Monitoring is a strange experience; a strange hollow sounding output which is completely unlike the played back recording. As headphones, these units are OK for a quick review but detail is quite poor.

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

Roland CS-10 test recording 1



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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

Roland CS-10 test recording 2



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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

Roland CS-10 test recording 3



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Inspector Sands Sound Recording

The enigmatic Inspector Sands is sometimes heard on the public transport system in the UK, but often not for long enough to record. This morning there was a good opportunity to fire up my recorder and capture over a minute of this announcement.

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.

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Wikipedia has an interesting article on the subject here.

Classic Aircraft Sound Recordings for iPad

I’ve created an iPad and iPhone friendly site for listening to the most requested sound recordings at field-recording.org.uk.

Aircraft Sounds on Mobile website

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!

Supermarine Seafire, June 2010

I’ve uploaded a new recording of the Kennet Aviation Supermarine Seafire on my field-recording website.

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

Composing for games

Not my usual line of things but a friend of mine who develops online games asked me to develop a few sound files for some game screens for something he was working on.

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

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Track 2:

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Track 3: Some ‘dramatic’ orchestral samples

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Track 4:

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Track 5:

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European Union MP3 Player Sound Level Legislation

Via the BBC, the European Union is proposing changes to MP3 players to prescribe default safe listeing levels for MP3 players. Current legislation mandates that “a statement be put in the instruction manual to warn of the adverse effects of exposure to excessive sound level”. The new proposals would see that the default sound setting for any device “shall be the ‘default’ settings on products”. January will see the start of a two-month consultation of all EU standardisation bodies with a final agreement expected in the spring of 2010.

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 Bristol f.2b Fighter makes one of my favourite aircraft sounds. Each time I record it I discover another facet of the complex soundscape it generates. The sounds the Rolls-Royce Falcon III on this machine makes sounds like the whine of a supercharger when you get downwind of it flying but I think this is the sound of the epicyclic gearing, which I think in itself is a unique feature in an engine this early.

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The picture below was taken during the display.

Bristol Fighter

Bristol Fighter, August 2009

48Kbps AAC+ and 160Kbps OGG Vorbis Testing

Using a small sample group, CNET have concluded that that people cannot tell the difference between Sky’s streaming audio at 48Kbps AAC+ and Spotify’s use of 160Kbps OGG Vorbis.

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A sound recording of P-51 Mustang “Janie” recorded in August 2009.

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And a spectrogram of the recording.

P-51 Mustang Janie Spectrogram

P-51 Mustang Janie Spectrogram

Sound recording of a recently rebuilt P-51 Mustang “Marinell” at the 2009 Little Gransden Airshow.

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And a spectrogram of the recording.

P51 Mustang Marinelle Spectrogram

P51 Mustang Marinelle Spectrogram

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