Module RTA
RTAs, or Real-Time Analyzers, are highly effective measurement systems for acoustic measurements in the audio frequency range. They are used for:
- Evaluation of car, hi-fi, PA and home cinema sound systems or
- Measurement of noise emissions from machinery or equipment
FFT oder RTA?
At first glance, RTA octave band measurements appear rather coarse compared to an FFT. However, it is precisely this reduced resolution that proves advantageous in many practical applications.
The key point is that octave bands are based on the frequency-dependent resolution of human hearing and also comply with standard technical specifications. As a result, they provide a more interpretable and practical representation than a high-resolution FFT.
- 4-channel RTA measurement display for quick comparisons of measurements
- Up to 10 microphones for direct selection within the software
- Sound profiles (reference curves) for tuning car audio systems
- IEC 61260 centre frequencies, Class 1 filter slope
- Rise time constants: Impulse, Fast and Slow
- A-C-Z frequency weighting
- Audio interface calibration
- Microphone correction (0°, 90°) per input
- 5th measurement channel for displaying Peak, Peak & Decay, Difference, Snapshot
- Text input for display channel
- Archiving: Save, export, print
Optimize Car Hifi via Sound Profiles
Car audio systems should not be tuned linearly due to the vehicle’s interior layout and materials. But what does proper tuning look like? Our sound templates make it super easy:
- Load the template (SUV, estate, etc.) into Channel 1 (green bar)
- Measurement with pink noise in the vehicle (yellow bar)
- Use the Car EQ or Audio DSP to adjust the yellow curve to the displayed target while the measurement is running
- Done! Your sound is optimised
You can find the free sound profiles and the Profile Editor, which allows you to create your own profiles, in the Downloads section.
Difference measurement
Difference measurement is very useful for comparative measurements. One channel contains the reference value and the other the current measurement. The RTA module displays the difference in red.
RTA bar chart formats
From top down: Default, Default with transparency, Shifted, 3D
Module acoustic room analysis
Why room acoustics is so important?
Room acoustics determine whether speech is clearly intelligible, music is captivating, or a room feels straining. Yet every room has different requirements: a control room requires maximum precision, a conference room perfect speech intelligibility, and a concert hall the right balance of clarity and richness.
x1RTA makes room acoustics measurable – and instantly assessable.
The software analyses all relevant parameters and evaluates them according to the selected room type. This allows you to see at a glance whether your room is optimally tuned.
- Room analysis with pass/fail assessment, based on predefined room types
- Support for up to 10 microphones: position the microphones in the room and carry out the measurement step by step without repositioning or reconnecting them
- Logarithmic sine sweep test signal. This method enables the precise determination of the impulse response in accordance with ISO 3382.
- Extended octave measurement range up to 50 Hz – 10 kHz
- Efficient workflow for averaging and labelling measurement series
- Use pre-designed report templates to present results professionally to your clients, including your company logo
- Tips for best results: Position the loudspeaker and microphone
- Save measurement series
What do all these readings mean?
x1RTA is one of the few tools that helps you analyse the large amount of measurement data:
- How well do the measured room parameters (RT60, EDT, etc.) match my room type, e.g. ‘Home Cinema’? Result as a pass/fail assessment
- What do the measured values for RT60, EDT, C50, etc. mean? Reverberant or dry?
- Conversely to 1): Which room type do the measured room parameters correspond to?
- How good is the acoustic homogeneity of the room?
Optimierter Workflow
To obtain meaningful results, it is recommended to take the average of several measurement points. This is particularly easy with x1RTA:
- Multiple measurement positions without changing microphones: x1RTA supports measurements from up to 10 microphones / positions
- Pool for all measurements: The "Measurements" page collects all measurements for later analysis, including a description
- Average values from any measurements: Select the measurements relevant for the calculation from the measurement pool using the checkbox
Comparison of measurement series
You can use the ‘Comparison’ page to carry out before-and-after measurements of a room parameter (e.g. RT60) – to see whether the room optimisation measures have been effective – or to plot different room parameters, such as RT60 and EDT, on a graph.
Reports for your customers
Create informative reports based on templates for individual measurements. Supplement the measurements with information such as the measures taken for acoustic optimisation, an interpretation of the measurement values, or a description of the measurement setup.
The measurement conditions can also be specified here (room dimensions, temperature, etc.). In a professional context, your company logo can be added to the report.
The Logger module allows you to record sound levels (SPL in dB, Peak, Leq and Lex,8h) in rooms, at workstations or for machinery over time. Optionally, the measured values can be weighted according to the A or C scale.
Complete timeline
Zoom
See for yourself just how powerful it is – with no risk. Download the software today from our downloads section.
Create your own car sound profiles or customise ours using the Sound Profile Editor. You can find the profiles and the editor in the downloads section.
PC system requirements
- MS-Windows 10/11 (32/64bit)
Required hardware
- USB sound card (ASIO driver), 48 kHz sample rate, adjustable inputs and outputs, 48 V phantom power (if required by the microphone)
- Measurement microphone
- Room measurement: active speaker or amplifier and loudspeaker
Module RTA
- Comfortable 4-channel measurement display
- Up to 10 microphones for direct access
- Sound profiles (reference curves) for tuning car audio systems
- IEC 61260 centre frequencies, Class 1 filter slope
- Rise time constants: Impulse, Fast and Slow
- A-C-Z frequency weighting
- Audio interface calibration
- Microphone correction (0°, 90°) per interface input
- Graphical view Peak, Peak & Decay, Difference, Snapshot
- Text input for display channel
- Archiving: Save, export, print
Module Analyse Raumakustik
- Room analysis with pass/fail assessment, based on predefined room types
- Support for up to 10 microphones: position the microphones in the room and carry out the measurement step by step without repositioning or reconnecting them
- Logarithmic sine sweep test signal. This method enables the precise determination of the impulse response in accordance with ISO 3382
- Extended measurement range up to 50 Hz – 10 kHz
- Efficient workflow for averaging and labelling measurement series
- Use pre-designed report templates to quickly present results to your customers, including your company logo
- Calculation of the sound field radius as a guideline for the minimum distance between the loudspeaker and the microphone
- Archiving: Print, save, PDF, CSV export
Module Data Logger
- Logger module for measuring sound levels over time (including A/C weighting)
- Measurement intervals from 200 ms
- RMS value, Peak, Leq (Equivalent Continuous Sound Level), Lex,8h A-weighted equivalent continuous sound pressure level for an 8-hour working day (similar to ISO9612, DGUV)
- Averaging of measured values between data acquisition points
- Zoom function during measurement
- Archiving: Save, clipboard
Module Signal Generator
- Tool for RTA measurements
- Signals: Log. Sweep & Pink Noise
We reserve the right to make technical changes.