Companion App for A10-TX, A10-RX, and A20-Mini



SD-Utility is a companion application for the A10-TX, A10-RX, and A20-Mini. This application can be used to process files recorded by the A20-Mini and A10-TX. SD-Utility replaces Sound Devices’ former file conversion utility, Mic2Wav. Version 2.00 for SD-Utility adds a Combine to Poly option when exporting by Timecode Range or Conform to CSV, the ability to add up to 10 seconds of pre- or post-roll to exported WAVs when using Conform to CSV, and more.

A20-Mini 32-bit float, 48 kHz, monophonic WAV and RF64 WAV files can be renamed, snipped by timecode values, converted to 24 bit, conformed to a CSV Sound Report, and more.

SD-Utility supports MIC files recorded in the A10-TX transmitter, batch conversion or individual file conversion, creation of User Groups, and firmware updates for the A10-RX.




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Latest Firmware: SD-Utility v2.00
Released: December 09, 2021

SD-Utility Installer for Windows


SD-Utility Installer for Mac

To communicate with the A10-RX on MacOS, download and install the CP210x USB to UART Bridge VCP Drivers from the Silicon Labs website.



  • New Combine to Poly option when exporting by Timecode Range or Conform to CSV.
  • Up to 10 seconds of pre- and post-roll can now be added to exported WAV files when using Conform to CSV. 
  • Exported WAV files now contain iXML metadata. 
  • The Source Window can now be ordered by dragging and dropping the MIC or WAV files. The order of the files in the Source Window determines the interleave order of exported polyphonic WAV files. 


  • Minor layout changes to accommodate the new features.
  • Reworded various popup error messages to provide more clarification. 


  • Improved overall stability of A10-RX firmware updating with Mac and Windows computers. 
  • SD-Utility exported RF64 WAV files no longer have the incorrect file length when imported into some Digital Audio Workstations. 
  • Minor improvements to WAV processing speed.