DSP PC-Tool 6 Download Center
Remote Tone Control (RTC)
The RTC enables a volume-dependent tone control (high- and low shelf filter) which is dependent on the set master volume. This allows to change the tonality in dependence to the set volume, for example to create a loudness characteristic or to react to certain volume-dependent sound changes. In the RTC, both the gain range and frequency for the high and low shelf filters can be set independently, as well as the volume range of the master volume in which the filter is to be actively controlled. This allows the dynamically controlled filters to be continuously controlled only in very specific volume ranges.
For example, it is possible to boost the low frequency range at low volumes and to adjust it linearly at high volumes, or to lower the high frequency range slightly at very high volumes.
Advanced Input Signal Analyzer (AISA)
The new Advanced Input Signal Analyzer (AISA) allows to measure the incoming analog input signal in a very fast and precise way. Especially in modern Car Audio Systems the OEM Integration aspect becomes more important than ever. Therefore, our Advanced Input Signal Analyzer is equipped with a wide range of innovative features to make the compensation of OEM processing functions as easy as possible: Factory Equalization can be defeated by using our proprietary TuneEQ algorithm which automatically de-equalizes the incoming signal. Factory time alignment can be compensated with our Delay Finder which semi-automatically compensates the input time delays. Factory phase processing (Allpass Filters) can be compensated semi-automatically by using a peak frequency detector and a simple and easy to use workflow.
Each input can be measured individually as well as the summation of up to four individual input channels. Each correction (EQ, Time & Phase) is analyzed and displayed in real time to make the effectiveness of the adjustment immediately apparent.
To use the AISA, a specified RCA output of the device is converted into a measurement output, which is used to send a signal (max. 1 VRMS) to any universal USB audio interface / USB sound card.
Dynamic Loudness Control (DLC)
The new Dynamic Loudness Control (DLC) allows the compensation of volume-dependent, factory-set filters or the creation of such loudness functions. A complex algorithm determines the input volume of the analog signal input and uses this information to control a dynamic high and low shelf filter. In the DLC, both the gain range and the frequency for the high and low shelf filter can be set independently, as well as the input volume range in which the filter is to be actively controlled. This allows to steer the dynamically controlled filters only in very specific volume ranges.
When using a HEC ANALOG IN module, the DLC can also be extended to the HEC input.
Similar to the Tone Control of the remote controls, the DLC uses a band of the InputEQ.
TuneEQ
One of the major new things in DSP PC-Tool 5 is our new proprietary TuneEQ function. This integrated automatic tuning mode provides a new way to automatically adjust your virtual or output equalizers. It utilizes a single spatial averaged measurement with at least 1/6 octave resolution to simulate and evaluate the best possible parameter set for your equalizer to achieve a specific frequency response target. The target itself can be freely designed as a Reference Curve.
TuneEQ is an extremely flexible but simple to use function which will use any given number of equalizer bands to perform a frequency response correction by utilizing the full possibilities of parametric equalizer bands. It will use the full function set of the parametric equalizer including the center frequency, Q-factor and gain adjustment.
One of the major design aspects of this function was to make its usability as simple as possible while the complex processes are done automatically in the background.
To use this function a single spatial averaged measurement is necessary per channel or channel group. This measurement can be done with any linear measurement microphone as the TuneEQ function does not have any special hardware requirements.
Wireless DSP tuning via Bluetooth
DSP PC-Tool 5 offers a new connection method which allows the wireless tuning of the DSP through a Bluetooth connection. To use this new connection method, it is necessary to install a BT HD module in the HEC slot of the DSP. To set up the connection the computers Bluetooth interface needs to be paired with the BT HD module. After this you can select the newconnection mode in the specific menu of the application launcher.
Multi-Device Connect
This software update also offers the option to set up several sessions of the DSP PC-Tool software simultaneously. The option allows to tune several connected devices at the same time by launching the software multiple times. As soon as more than one connected device is identified a new menu will appear which allows to select the specific devices independently if USB, Bluetooth or Wifi is used.
| Version | Description |
| 5.02.03 |
Usability
|
| 5.02.02 |
Devices
Usability
|
| 5.02.01 |
Devices
DCM
Remote Tone Control (RTC) Features and Functions
Measurement Signals A new measurement signal called IGS – Input Gain Setup has been added. Usability
|
| 5.01.00 |
Devices
Usability
|
| 5.01.00 |
IO
Help menu
|
| 5.00.08 |
Launcher / Installer
|
| 5.00.07 |
New Device
|
| 5.00.06 |
New Device
Launcher / Installer
|
| 5.00.05 |
New Device
ISA
RTA
|
| 5.00.04 |
Launcher / Installer
Outputs (formerly Main)
RTA
|
| 5.00.02 |
Launcher
DCM (Device Configuration)
FX
IO
TIME
RTA
? - Help menu
|
What's New in DSP PC-Tool 6
With the major release of version 6, DSP PC-Tool sets a new standard for professional sound tuning in vehicles. In addition to a sophisticated new operating concept, this version brings with it numerous technical innovations and intelligent automations that make working with complex systems significantly more efficient - with maximum control for the user.
Note on the availability of devices and functions
With the first release of DSP PC-Tool 6, the following devices are supported for the time being:
- BRAX DSP (96 kHz & 192 kHz)
- HELIX DSP ULTRA S
- HELIX DSP ULTRA
- HELIX DSP PRO MK3
- HELIX DSP.3S
- HELIX DSP.3
- HELIX DSP MINI MK2
- HELIX DSP MINI
- HELIX P SIX DSP ULTIMATE
- HELIX V TWELVE DSP MK2
- HELIX V TWELVE DSP
- HELIX V EIGHT DSP ULTIMATE
Further ACO-based devices will follow shortly.
We ask for your understanding that not all devices will be supported right from the start of DSP PC-Tool 6. The reason for this is the enormous technical scope of the new platform and the large number of ACO devices that we are gradually integrating.
The good news is that all ACO devices will be fully activated in DSP PC-Tool 6 by July. At the same time, we are working flat out to implement further functions and optimizations.
Even if some features have not yet made it into this first version, we would like to assure you: The July release will already offer a wide range of new possibilities – and regular updates will follow at short intervals.
New navigation & sound setup menu
The user interface has been restructured from the ground up and is now based on the actual signal flow within the DSP - from input signal processing, routing and the virtual channels through to output signal processing and the real-time analyzer. This makes it possible to intuitively understand which function acts at which point in the signal path.
On the first navigation level, you will find clearly structured main categories (e.g. "Input Processing", "Output Processing"), each of which provides access to specific functions such as equalizer, delay correction or signal management on a second level.
The new sound setup management offers you:
- A clear display of all setups with color coding: active (green), saved (yellow), empty (red)
- Simple copy, rename and delete functions
- Faster switching and management of multiple setups
The system-related menu items "Device", "Remote Control", "DSP PC-Tool Config" and "Help" (available at a later date) have been deliberately positioned outside the audio signal flow in order to create a clear separation.
Completely revised DSP & ACO firmware
A new firmware was introduced for all ACO-based devices with version 6, creating a common technical basis for current and future features.
Highlights:
- Expansion of the input EQ bands from 7 to 15 (except BRAX DSP with 192 kHz: 10 bands)
- New signal processing architecture for even more flexible DSP routing
- Optimized internal communication between DSP and ACO
- Significantly shorter setup loading times (~300 ms per DSP)
This basis enables functions such as source-dependent setup switching (July release), crossfade between sources (August release) and other planned enhancements.
⚠️ Note: The introduction of a revised output limiter in brick-wall style may result in a different gain control. After importing a DSP sound setup that was created with DSP PC-Tool 4 or DSP PC-Tool 5, it is essential to check the gain structure.
Globalized device settings
With DSP PC-Tool 6, device-related settings such as the ACO features, signal management and automatic signal detection as well as the remote control configuration have been completely globalized across all setups. These configurations now only need to be made once per device.
This change brings great advantages for:
- Configurations with multiple sound setups
- Management of multiple audio sources
- Users who frequently work with different presets
All corresponding settings can be found centrally in the new "Device" and "Remote Control" menu as well as in the Source Configuration menu.
New source configuration menu
The new Source Configuration menu under the "Signal Management (IO)" section enables significantly more detailed control of the signal sources and their behavior:
Already available now:
- Configuration of signal detection in terms of sensitivity and release time
- Drag & drop prioritization of input signals (e.g. "Bluetooth before digital")
Planned for the next releases:
- Source-based Setup Switch - another sound setup is automatically loaded when the source is active (in July)
- Crossfading - seamless crossfading of multiple signal sources within a setup (in August)
These functions enable, for example, the fully automatic integration of OEM infotainment including warning signals and external signal sources.
OptimizeEQ - Automated band reduction for equalizers
OptimizeEQ is an intelligent tool for simplifying existing equalizer settings. The aim is to achieve almost identical sound characteristics with as few bands as possible - in order to create space for further fine-tuning.
Function in detail:
- Analysis of all active EQ bands of a channel
- Automatic recalculation of a comparable filter curve with a reduced number of bands
- Adjustable optimization steps - you decide how much to simplify
- Visual display of the deviation from the original
The feature is ideal for post-processing TuneEQ, TuneToTarget or REW imports - directly accessible via the "OEQ" button in each equalizer bank. A real-time comparison of the original EQ and optimized EQ then enables a precise acoustic assessment.
TuneToTarget - Automated Equalizer Calibration (Beta)
With TuneToTarget, multi-channel speaker systems can be adjusted to a target curve semi-automatically for the first time - including equalizing, level adjustment and optional filter adjustment.
Note: TuneToTarget will be released as a public beta version in July 2025. The following section describes the planned functions in advance.
Procedure:
- Measurement of each loudspeaker using the "moving microphone" method
- Comparison with the selected reference curve
- Automatic calculation of a suitable EQ curve per channel
- Automatic gain adjustment for fully measured systems
Two operating modes:
- Easy Mode: Fixed filters are required (e.g. -24 dB Linkwitz-Riley for active systems)
- Advanced mode: Full filter freedom for experienced users
General Changes
- Significantly faster setup loading time (~300 ms per DSP)
- 15 input EQ bands for all devices (except BRAX DSP with 192 kHz: 10 bands)
- Virtual Channel Processing (VCP) is active by default on all compatible devices
- New file extension "*.pct6" - now also includes the CONDUCTOR configuration
- Central audio interface configuration in the DSP PC-Tool Config menu
- Extended device logging in the Device tab for better troubleshooting
- Peak level display replaces previous RMS display in the output level display
- New intuitive folder structure: All data now centralized under \User\Documents\Audiotec Fischer\
- Revised configuration for Remote Tone Control (RTC) and Dynamic Loudness Control (DLC)
- Summing function in IO matrix extended (up to 400 % summation per output channel)
- Includes audio test tracks in WAV & FLAC
- Link box (channel link) now positioned flush left above the channel name
- File recovery enables data backup after unexpected software crash (configuration in DSP PC-Tool Config)
- Advanced Gain Setup for all devices without analog gain setting
- New gain structure & brick wall limiter for more precise optimization of the gain structure
Outlook for the next evolutionary stage
This first release of DSP PC-Tool 6 is just the beginning of a comprehensively revised software platform. The new architecture forms the technological basis for a large number of additional functions that will be introduced in regular updates over the coming weeks and months.
Many of these features - such as setup-based switching, crossfading and TuneToTarget - are already in the starting blocks and will be released step by step. In addition to the points listed here, DSP PC-Tool 6 contains hundreds of other detailed improvements, optimizations and internal restructuring measures, not all of which can be listed in detail due to the scope.
The completely revised backend lays the foundation for the next generation of DSP PC-Tool - more powerful, more flexible and future-proof. We look forward to working with you to usher in the next evolutionary stage of our world-renowned DSP software.
Please note: At the launch of the first public beta version, not all planned functions and full device support are yet included. We therefore ask for your patience and understanding - we are working at full speed to complete the platform in a timely manner and continuously develop it further.
DSP PC-Tool Version 6.01.04
NEW
Official Beta Release!
Windows 11, Windows 10
(32 / 64 Bit)
Release Date: 04.07.2025
Download
| Compatible devices | ||
|---|---|---|
| BRAX | HELIX | MATCH |
| BRAX DSP | DSP ULTRA S | |
| DSP ULTRA | ||
| DSP PRO MK3 | ||
| HELIX DSP.3S | ||
| HELIX DSP.3 | ||
| HELIX DSP MINI MK2 | ||
| HELIX DSP MINI | ||
| P SIX DSP ULTIMATE | ||
| V TWELVE DSP (MK1 / MK2) | ||
| V EIGHT DSP ULTIMATE | ||
Beta Version Notice
DSP PC-Tool 6 is currently available as a public beta version. The software is largely stable and functional; however, minor bugs or limitations may still occur.
For use in production-critical or safety-relevant environments, it is recommended to wait for the final release version, which will be available shortly.
What´s new
This update includes several improvements, new features, and bug fixes to improve compatibility and usability:
Added Devices:
- Added support for HELIX DSP.3S
- Added support for HELIX DSP.3
- Added support for HELIX DSP MINI MK2
- Added support for HELIX DSP MINI
Improvements:
- Added support for loading standalone CONDUCTOR configurations (
*.afcc) from DSP PC-Tool 5 - Redesigned Time Measurement Dialog (ATM) with optimized layout and improved scaling
- Output level display now works correctly with devices featuring multiple DSP banks (e.g., BRAX DSP channels 7–12)
Bug Fixes:
- BRAX DSP (96 kHz): Fixes a channel mapping issue with Subwoofer 2
- Signal Detection:
- Fixed issue that BEC1 and BEC2 release times influence each other
- Incorrect threshold transfer between USB and Digital input fixed
- Display error when toggling detection resolved
- WiFi Interface Selection: Rare crash when listing WiFi devices fixed
- User Interface: "Setup changed" dialog no longer appears during simple channel switching
This update includes several improvements and additions to enhance device compatibility and user experience:
- Resolved issue with Director communication
- Added support for displaying
*.pct6and*.afpxfiles in the file open dialog - Added support for HELIX DSP PRO MK3
- Added support for HELIX V TWELVE DSP
- Added support for HELIX V TWELVE DSP MK2
