Quickly turn off noise cancellation on Bose 700 headphones
Note: The test version in the repository also supports the Bose QC 35 (QC35) headphones and, in a much reduced way by only switching the mode, the Bose QC Earbuds and Bose QC 45 (it is not able to fully disable active noise cancellation on these devices).
This Android app allows you to quickly turn off noise cancellation on Bose 700 headphones.
Bose 700 headphones have a "noise control" button to cycle through noise cancellation presets, but these are on a scale (three presets between 0-10) from actively passing external sound through, to cancelling out external sound. In a very quiet room, any setting on this scale can result in an audible hiss, and you may not want any active pass-through/cancelling at all, but just the sound. The official Bose Music app does allow you to temporarily turn off noise cancelling, but this setting is buried in the app and takes some time to get to.
You can:
Noise cancelling will turn back on if you press the Noise Control button on the left ear cup, or when you next turn the headphones on.
The application sends a short message (repeated 3 times) over the device's Serial Port Profile (SPP) connection, in hex:
01 05 02 02 00 00
This product is provided 'AS IS', the developer makes no warranties, accepts no liability, and hereby disclaims any implied warranties, including any warranty of merchantability and warranty of fitness for a particular purpose. This software sends a specific message to the device you choose. This has only been tested on one pair of headphones of a single firmware version. You accept liability for whatever happens, including any damage, injury, or loss.