Daniel Martinez

Audio & Tech Wizard

Recording Ultrasonic Frequencies with MixerFace

Learn about recording ultrasonic frequencies with MixerFace!

In this tech note we will go over how to record ultrasonic frequencies with MixerFace. 

MixerFace is a powerful and versatile little box and we are always coming across new use cases for it, which we love! Recently, we received an inquiry about recording ultrasonic frequencies with MixerFace. Thus, we decided to put this tech note together in case anyone else is interested in doing so.

Ultrasonic frequencies are any frequencies over 20,000 hz – anything over the frequencies “of audible sound”.  Although the MixerFace R4R’s built in SD card recorder is fixed at 24-bit/48khz for recording audio, when connected via USB to the device/recording app of your choice, it is possible to record at higher sample rates.  These higher sample rates allow for capturing the ultrasonic frequencies.  Usually a sample rate of 96khz is preferred by those who are recording these high frequencies. MixerFace will support recording at a sample rate up to 192khz when connected via USB to the recording program of your choice.

One very important thing to remember is that not all microphones can capture ultrasonic frequencies.  Thus, it is necessary to be sure you have the proper mic before attempting to record such frequencies.  Some popular examples of microphones capable of handling ultrasonic frequencies include the Sennheiser MKH8000/8040/8050, and the  Sanken mo-64.  As long as you have a microphone which can capture the frequencies accurately, then MixerFace is ready to help you record!

Contact us. As always, if you have any questions, don’t hesitate to drop us a line. You can reach us via the email box at the bottom of this page or via the contact us form. We are serious about customer support and will help you get going quickly. 

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