HRR I – Rotating reflector for changing the echo path for acoustic tests
HRR I is the HEAD acoustics motorized rotating reflector to influence the acoustic...
HRR I is the HEAD acoustics motorized rotating reflector to influence the acoustic coupling between loudspeaker and microphones during acoustic tests. Thus, the reflector allows users to quickly change the acoustic echo path, a typical situation e.g. in hands-free communication – in a fully automated and repeatable way.
HRR I is suitable for any hands-free situation and any location as an automated and noise-free acoustic reflector. The aim of HHR I is to identify and subsequently optimize the system’s general communication quality and echo attenuation performance under quickly changing acoustic conditions.
HRR I is the HEAD acoustics motorized rotating reflector to influence the acoustic coupling between loudspeaker and microphones during acoustic tests. Thus, the reflector allows users to quickly change the acoustic echo path, a typical situation e.g. in hands-free communication – in a...
HRR I is the HEAD acoustics motorized rotating reflector to influence the acoustic coupling between loudspeaker and microphones during acoustic tests. Thus, the reflector allows users to quickly change the acoustic echo path, a typical situation e.g. in hands-free communication – in a fully automated and repeatable way.
HRR I is suitable for any hands-free situation and any location as an automated and noise-free acoustic reflector. The aim of HHR I is to identify and subsequently optimize the system’s general communication quality and echo attenuation performance under quickly changing acoustic conditions.
Highlights
- HRR I enables to dynamically change the acoustic coupling between receiver and microphones
- The motorized rotating reflector allows precise & fully-repeatable time-variation of the echo path
- HRR I is used for acoustic tests of hands-free devices like smart speakers, conferencing devices, car hands-free and mobile devices with hands-free telephony function
Applications
- Fully-automated dynamically changing the echo path for acoustic tests of hands-free devices like
- smart speakers,
- conferencing devices,
- car hands-free and
- mobile devices with hands-free telephony function.
- Time variant echo path measurements e.g. according to Recommendations ITU-T P.1100, P.1110, and P.1120
Features
- The rotating reflector can be applied in living spaces, test rooms, vehicles etc.
- The motorized rotating reflector stands out with its noise-free motion with high precision.
- In conjunction with appropriate ACQUA test suites (e.g. P.1100, P.1110, HQS-SmartHome), HRR I allows fully-automated operation.
- Trigger pulses are stored with the audio file to achieve accurately timed and fully repeatable measurements.
- The rotating reflector provides high mechanical robustness and excellent acoustic reflectivity up to high frequencies.
- The motor of HRR I is mechanically decoupled from panel and pedestal to prevent undesired sound transmission from the power train.
- The large aluminum baseplate of the rotating reflector allows steady positioning on flat surfaces.
- Users can mount HRR I also on tripods via the integrated tripod socket to operate vertically as well as horizontally.
- The rotating reflector communicates with the hardware platform labCORE over the RS-485 serial connection.
- HRR I is a lightweight 40 cm × 30 cm (16 inch × 13 inch) panel.
Relevant Products
ACQUA Options
(ACQUA Options,Options,ACQUA,6811,6812,6819,6820,6821,6822,6836,6839,6840,6842,6843,6844,6848,6849,6852,6853,6854,6855,6856,6857,6858,6859,6865,6866,6867,6869)
ACQUA Standards
(ACQUA Standards,Standards,ACQUA,60000,60003,60004,60005,60009,60010,60013,60014,60018,60019,60020,60021,60023,60026,60028,60030,60032,60033,60035,60036,60038,60039,60041,60043,60044,60046,60047,60049,60055,60057,60058,60060,60062,60063,60064,60065,60066,60067,60068,60069,6711,6741,6742,6750,6770,6772,6777,6783,6788,6789,6794,6795,6796,6797,6798)
HEAD acoustics Quality Standards (HQS)
(HEAD acoustics Quality Standards HQS,HQS,ACQUA,Standards,60025,60054,60051,60052,60015,6769,6786,6787,60011,60012,60001)
HMS II.3
(HMS II.3,HMS 2.3,HMS II,HMS 2,HMS,artificial head,head,binaural,1703,1750,1574,1357,1967)
