We hear
what others
overlook.
Acoustic resonance analysis detects cracks, microstructure defects and material deviations – non-destructively in under one second, fully automated, inline. Based on 40 years of Fraunhofer research.
- Fraunhofer spin-off
- Non-destructive
- 100% inline
Every noise
has a cause.
We find it.
End-of-line noise and vibration testing for series production. Objective assessment of bearings, drives and comfort noise – in real time, within cycle time.
- Psychoacoustics
- Order analysis
- MES-ready
One platform.
Three disciplines.
Zero compromise.
One software architecture for noise, material and process. From lab trial to 100% inline series – with the same database, shared analysis and AI-driven classification.
- 4 modules
- Multi-channel sync
- AI analysis
Turnkey
into your line
integrated.
Hardware integration into your existing or new production line. PROFINET, OPC UA, Q-DAS, MES – connected with software developed with Fraunhofer since 1986. Also as OEM component for machine builders.
- PROFINET / OPC UA
- Q-DAS compliant
- Service & support
Leading manufacturers rely on SonicTC.
Automotive 
Antrieb · Sensorik 
E-Mobilität 
Brems-Komponenten 
Lager · Großserie 
Bremstechnik One platform. Three disciplines.
Other vendors solve one problem. SonicTC solves three: noise testing, material testing and process monitoring – with one software, one UI, one database. Plus a platform backbone for integration, smart factory, data management and smart components.
Noise Testing
NVH analysis for end-of-line and inline testing. Objectively evaluate airborne and structure-borne noise on motors, transmissions, pumps and actuators.
Learn more SonicTC.ATMaterial Testing
Resonance analysis detects cracks, structural defects and material mix-ups – non-destructively and fully automated. On cast, sintered, ceramic and forged parts.
Learn more SonicTC.DSPProcess Monitoring
Real-time vibration analysis for tool wear, joining processes and machine monitoring. Detect problems before scrap is created.
Learn more Test EquipmentTest Hardware
From mobile lab device to manual test bench to fully automated inline systems. Integration kits for your machine builders.
Learn moreWhy RTE?
Six reasons that make the depth-difference – scientific, hardware-agnostic, from lab to line.
Science at the core.
Spin-off of the Fraunhofer Institute. Every procedure in SonicTC is based on applied research. Every year a share of revenue is reinvested in R&D.
No lock-in. Full freedom.
SonicTC works with your existing sensors – Brüel & Kjær, Polytec, PCB and many more. No vendor lock-in.
From lab to line.
The same software scales from lab bench to 100% inline. Test definitions and archives stay compatible.
AI that hears the difference.
Self-learning evaluation and anomaly detection increase discrimination. Less false-rejects, faster ramp-up.
Test before you invest.
TaaS or rental: acoustic test technology without capex risk. From idea to insight in weeks, not months.
Reliably reachable.
By phone, remote or on-site – worldwide. Maintenance, calibration and parameter care under a service contract with defined response times.
How our customers deploy SonicTC.
From a Tier-1 brake manufacturer with 100% inline resonance testing to e-drive OEMs with end-of-line NVH – real examples with measurable results.
100% inline resonance testing on passenger brake discs.
Before commissioning: destructive sampling on 0.5% of parts, 14-day storage, manual evaluation. After SonicTC.AT: 100% of parts tested inline, eigenfrequency ±0.3 Hz, Q-factor and damping evaluated automatically, gapless audit trail for every part.
Your industry. Our solution.
Acoustic test technology solves different challenges in every industry. Find yours here.
Four decades of acoustic test technology.
From the Fraunhofer Institute into the production lines of leading industrial customers.
Acoustic test technology at a glance.
From sound generation to noise and vibration analysis to application examples – in just a few minutes.
Acoustics helps! Effective, flexible and customer-oriented.
When a delivery and production stop requires immediate failure analysis – acoustic test technology delivers.
A delivery stop due to quality defects at the customer requires immediate action. You cannot look inside metallic parts to see if they are free from cracks and structural damage. CT methods allow insight, but are only practical for laboratory use.
In an urgent customer case, a fast test solution was needed to secure delivery capability. The challenge: no defective reference parts available for system training.
By parameterizing against defect-free reference parts, all deviating parts could be filtered out. The flagged parts were subsequently examined metallurgically and by CT – the acoustic results were confirmed. Delivery capability and quality monitoring were secured.
Our services →"Optimists see an opportunity in every difficulty. Pessimists see a difficulty in every opportunity."Jörg Ritter, Director RTE Akustik + Prüftechnik GmbH
Treasure hunt on our new website!
We've completely rebuilt our website – and hidden 5 secret RTE icons inside. Click all 5, fill out the form and you could win an Apple Watch! Drawing at Christmas 2026.
Your treasure hunt
Terms and conditions
- Organiser: RTE Akustik + Prüftechnik GmbH, Gewerbestr. 26, 76327 Pfinztal, Germany.
- Participation period: The contest runs from publication on the website until 23 December 2026. Entry deadline is 23 December 2026, 23:59 CET.
- Eligibility: Natural persons aged 18 or over residing in Germany, Austria or Switzerland are eligible. Employees of RTE GmbH and their relatives are excluded.
- Participation: To participate, all 5 hidden RTE icons on the website must be found and clicked, and the entry form must be completed. Only one entry per person is permitted.
- Prize: Among all valid participants, 1× Apple Watch will be drawn.
- Winner determination: The winner will be determined by lot on Christmas Day (24 December 2026) and notified by email.
- Prize delivery: The prize will be delivered by post. Cash payment is not possible. The prize is non-transferable.
- Early termination: The organiser reserves the right to terminate or modify the contest at any time for good cause.
- Legal recourse: Legal recourse is excluded.
- Miscellaneous: The laws of the Federal Republic of Germany apply. If individual provisions are invalid, the validity of the remaining provisions remains unaffected.
Privacy notice for the contest
- Data controller: RTE Akustik + Prüftechnik GmbH, Gewerbestr. 26, 76327 Pfinztal.
- Data collected: First name, last name, email address.
- Purpose: Data is used exclusively for conducting the contest and notifying the winner.
- Legal basis: Art. 6(1)(a) GDPR (consent).
- Storage duration: Data will be deleted no later than 30 days after the contest ends.
- Disclosure: Data will not be shared with third parties.
- Right of withdrawal: Consent can be withdrawn at any time by emailing info@rte.de. Withdrawal leads to exclusion from the contest.
- Further information: See our privacy policy.
Ready to experience acoustic test technology in your line?
Send us your part or schedule an online demo. First assessment within 24 hours.