Just a few days ago I had the pleasure of recording episode 2 of “The Yaminade” – my new podcast about Yammer and Enterprise Social I am working on. The guest is a good friend of mine and we organised to meet at the café we normally catch up at. It has a good blend of inside dining, information pills population health and alfresco outdoor long black sipping options. I thought we might find a quiet spot in the café to do the recording.

Unfortunately because it was Friday morning at 10:30am, here a lot of people had ventured out from their offices for morning tea and some extra caffeine to finish off the week. Which meant our quick and hopefully quiet catch up to record a podcast episode was starting to turn into what would be my worst nightmare…. BACKGROUND NOISE! But not just any café background noise… we were seated right beside 4 lanes of city street (which you can see in the background of the photo below!)

Now… If I was recording on an iPhone, on the built in microphone, USB headsets or even an entry level digital voice recorder, this may have been a disaster. But to be honest the ZoomH4n absolutely showed how valuable a tool it is. Especially at one stage there was so much noise from the road as a large B-Double Truck/Lorry as it hit the brakes as it went past that we couldn’t even hear each other talking!!! When you listen back to the recording you will wonder why on earth we paused and had a good laugh as the truck is only just audible in the background

Here is the process I went through to make sure we got a usable recording.

  1. Turn on the ZoomH4n, and plug in your external microphones via the two connections on the bottom of the device. I was using my Behringer XM8500 and Audio-Technica XLR/USB Dynamic Microphone. Note that without the external microphones in this case we could not have captured the conversation without all the noise. Whilst the built in stereo microphone (which is awesome by the way) would have done well… the background noise would have still been significant as we were simply conversing across a tall café table
  2. Plug in some headphones into your ZoomH4n
  3. Hit record once so you can start to check the levels. I tried a few settings using the recording levels button on the side of the ZoomH4n – at 80 it was definitely too noisy. At 30 the vocal’s from myself and my guest were just too weak, down on the left hand side of the level monitor. I settled at Rec Level 50 – a good balance of audible voice, and little background noise.
  4. Then I crossed my fingers and hoped for the best as I hit record to start the interview!

The result was pretty surprising. I though the background noise would have totally detracted from the interview and we would have had to re-record the episode. But as it turns out the background noise was nearly non-existent. Apart from the soothing very low level clatter of cups and teaspoons and saucers every now and then – which just added a bit of atmosphere to the recording… you can’t hear much at all. It is chalk and cheese compared to the noise we heard whilst recording. In hindsight, the biggest challenge was being able to hear each other to have a good conversation… the ZoomH4n coupled with external microphones did all the heavy lifting!

You can listen to the finished product where we talked about how a government agency is using Yammer to accelerate cultural transformation. Note that the only post processing on this was the application of the Compressor effect in Audacity – no background noise removal was done at all!