iPhone Sound Meter

Have you been looking for a simple sound measurement tool for your iPhone? Well, I have been using this little gem for quite a while and find it to be quite effective. Faber Acoustical has released their handheld sound level meter (SLM), SoundMeter for the iPhone.

This application is not accurate enough to replace a dedicated SLM, but it can provide basic measurements effectively in a variety of environments. It uses either the iphone's built-in mic or an attached headset mic and can measure peak sound levels up to 105 db. The application even rotates when using the built-in mic, while holding the phone upside down. It employes a number of features available on professional SLM devices such as  time-weighted measurements, peak and maximum display levels, fast-slow-impulse response, and calibration. Landscape mode is activated when the phone is turned on it's side. High resolution display images can also be saved to the camera roll, including date, time, and location tagging.

Although this application does not meet ANSI or IEC standards for precision sound level meters, it does do a pretty good job in providing basic relative measurements. 

Faber Acoustical - SoundMeter $19.99 @ iTunes App Store