Just showed up in my feed. I know preference is Helix but these have been pretty good to me. Also this is the 3rd update I believe in the last year. Pretty cool that they keep refining
From the webpage
audison.com
Audison is pleased to announce the launch of the 2.1 update for our renowned bit Drive software, now available for free download. This upgrade marks a significant advancement for enthusiasts and professionals in the car audio field, offering advanced tools for impeccable and personalized sound tuning. With bit Drive 2.1, every user has the opportunity to elevate their vehicle’s audio experience at no additional cost, leveraging our innovative integrated features.
New Features of bit Drive 2.1
Improved mixer: mix of analog and digital inputs
Now, in the Mixer of each source, you can add input channels from other sources.
For example, in the Mixer of the Master source, you can integrate signals from the optical input.
This feature allows you to create a customized Mixer for every source, which is ideal for:
Combining the vehicle’s service signals with audio streaming from B-CON.
Managing voice communication with the OEM system without compromising music playback quality.
manage and mix the channels of each Analog and Digital Source available
manage and mix the channels of each Analog and Digital Source available
updated electrical RTA
updated electrical RTA
Enhanced electrical RTA with new features
The electrical spectrum analyzer (RTA) introduces two new functionalities:
Input phase inversion: Fixes cable connection errors without manual adjustments.
Input EQ graphical display: Simplifies the correction of OEM signals with detailed analysis for each channel.
New acoustic RTA features
“Capture RTA” button to save up to 10 microphone measurements and compare them in a single interface.
Bar or line display modes for more intuitive analysis.
Export and import acoustic measurements to and from your PC for convenient adjustments.
updated acoustic RTA window
dynamic band distribution of output EQ
Dynamic band distribution in the output EQ
With a single click, you can automatically reorganize the EQ bands within the channel’s frequency range. Result: faster and more precise tuning for every channel.
Improvements to Auto Chimes and Auto Input Switch options
“Memory unchanged”: Keeps the current memory unchanged when these features are activated.
“Volume unchanged”: Retains the Master volume level during transitions.
improved auto chimes
enable/disable shortcuts
Enable/Disable Shortcuts
An option to make the system even more customizable according to your preferences.
Mix of Analog and Digital Inputs
In the Mixer of each Source, it is now possible to include Input channels from other Sources. For instance, in the Mixer of the Master Source, you can now add the contributions from the Optical input.
This allows you to create a “specialized” Mixer for every Source in the product.
This feature is particularly useful for integrating vehicle service signals with streaming from B-CON, as an alternative to using the Auto Chimes function already available in bitDrive.
The introduction of this function is also geared towards the increasingly advanced infotainment systems in vehicles, where drivers continuously exchange voice commands with the OEM system but still want to enjoy high-quality music playback from B-CON or other digital players.
Electrical RTA with Two New Functions
Dynamic Band Distribution in Output EQ
New Options for Programming Auto Chimes and Auto Input Switch
New Features for Acoustic RTA
Option to Enable/Disable Shortcuts
From the webpage

Audison bit Drive 2.1 software update
bit Drive 2.1 sw upgrade marks a significant advancement for enthusiasts and professionals in the car audio field, offering advanced tools for superior system tuning.

Audison is pleased to announce the launch of the 2.1 update for our renowned bit Drive software, now available for free download. This upgrade marks a significant advancement for enthusiasts and professionals in the car audio field, offering advanced tools for impeccable and personalized sound tuning. With bit Drive 2.1, every user has the opportunity to elevate their vehicle’s audio experience at no additional cost, leveraging our innovative integrated features.
New Features of bit Drive 2.1
Improved mixer: mix of analog and digital inputs
Now, in the Mixer of each source, you can add input channels from other sources.
For example, in the Mixer of the Master source, you can integrate signals from the optical input.
This feature allows you to create a customized Mixer for every source, which is ideal for:
Combining the vehicle’s service signals with audio streaming from B-CON.
Managing voice communication with the OEM system without compromising music playback quality.
manage and mix the channels of each Analog and Digital Source available
manage and mix the channels of each Analog and Digital Source available
updated electrical RTA
updated electrical RTA
Enhanced electrical RTA with new features
The electrical spectrum analyzer (RTA) introduces two new functionalities:
Input phase inversion: Fixes cable connection errors without manual adjustments.
Input EQ graphical display: Simplifies the correction of OEM signals with detailed analysis for each channel.
New acoustic RTA features
“Capture RTA” button to save up to 10 microphone measurements and compare them in a single interface.
Bar or line display modes for more intuitive analysis.
Export and import acoustic measurements to and from your PC for convenient adjustments.
updated acoustic RTA window
dynamic band distribution of output EQ
Dynamic band distribution in the output EQ
With a single click, you can automatically reorganize the EQ bands within the channel’s frequency range. Result: faster and more precise tuning for every channel.
Improvements to Auto Chimes and Auto Input Switch options
“Memory unchanged”: Keeps the current memory unchanged when these features are activated.
“Volume unchanged”: Retains the Master volume level during transitions.
improved auto chimes
enable/disable shortcuts
Enable/Disable Shortcuts
An option to make the system even more customizable according to your preferences.
Mix of Analog and Digital Inputs
In the Mixer of each Source, it is now possible to include Input channels from other Sources. For instance, in the Mixer of the Master Source, you can now add the contributions from the Optical input.
This allows you to create a “specialized” Mixer for every Source in the product.
This feature is particularly useful for integrating vehicle service signals with streaming from B-CON, as an alternative to using the Auto Chimes function already available in bitDrive.
The introduction of this function is also geared towards the increasingly advanced infotainment systems in vehicles, where drivers continuously exchange voice commands with the OEM system but still want to enjoy high-quality music playback from B-CON or other digital players.
Electrical RTA with Two New Functions
Dynamic Band Distribution in Output EQ
New Options for Programming Auto Chimes and Auto Input Switch
New Features for Acoustic RTA
Option to Enable/Disable Shortcuts