Sound acoustics

Ingenieurbüro für Nachrichtentechnik und Akustik

Our Services

· Consulting

· Feasibility studies

· Development support

· Quality enhancement of your product

· Training  and offline training

Our products

· Measurement systems

· Listening test simulation

· Remote diagnostic systems

Our research topics

· Hearing adequate signal processing

· Compensation filters

· Quality enhancement of signal processing systems

Real Time Quality Evaluation with HASQUE

 

Listening test simulation at terminals with analogue audio interfaces.

 

Features: 24 Bit 48 kHz A/D converter, Automatic level adaptation

Hardware tester with programmable signal generators, Programmable Task Interpreter, PTT control

Scaling according to ITU-T P.862.1 und ITU-T P.862.2 or individual programmable

Statistics: MOS, Delay, Speech Interrupts

 

HASQUE measurement systems are used among others by the „Bundesanstalt für den Digitalfunk der Behörden und Organisationen mit Sicherheitsaufgaben”-(BDBOS) for certification of digital radio devices and control centres.

Homepage English

Homepage Deutsch

 

Our Products

BILAN

HASQUE

ELAC Design

SETMON

 

Our principles

Listening test simulation

Loudness control

Source codes

Test programs

 

Quality enhancement

Acoustic positioning

Speech recognizer

TETRA Codec

 

Downloads

 

Literature

 

We about us

Legal notice

Data protection

 

 

 

 

Research

 

The search for new solutions requires new measurement principles making  observations of cause and effect possible. We develop new real time  measurement principles for individual properties of audio systems making cause and effect visible.

Quality Enhancement

 

Quality enhancement of known telecommunication systems is possible by hearing adequate parameterization.

 

We offer the optimization of your product with the aid of our adaptive measurement systems and provide you with new signal processing principles for your future products.

 

Adaptive Filters for quality enhancement

 

Optimal compensation of a transfer function for crystal clean reproduction of signals for Audio, ELA, Video, Ultrasonic, Radar…

 

ELACompFilter: No latency, economic, precise

Offline quality evaluation with HASQUE

 

based on listening test simulation with PCM recordings

 

Scaling according to ITU-T P.862.1, ITU-T P.862.2 or individual programmable, file list generation,

Representations: Audible errors, Transfer function ...

Statistics: MOS, Signal delay, Speech interrupts

 

Quality evaluation according to the BDBOS for certification of digital radio devices and control centres with post processed recordings.

 

Our Real-time systems are: