HMS IV
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HMS IV.0 (Code 1500) Digital artificial head measurement system with CompactFlash and USB interface Features • Aurally-accurate recording and playback • Interfaces: USB 2.0, AES/EBU, pulse in, RS232, analog out • Headphone output for direct, equali zed playback or monitoring • Equalization options: Independent of direction (ID), free field (FF), diffuse field (DF), user-specific (USER) via download, linear (LIN -no equalization) • High dynamic range thanks to 24-bit technology • Sampling rates: 32, 44.1,48, 88.2, 96 kHz • Calibratable measurement system • High input range • Extremely low noise • Charge indicator for battery can be polled e.g. via HEAD Remote Control App (for Android as of V. 2.3.3) • Automatic system check • Compatible with artificial head measurement systems HMS III.0 and HMS III.L, including HMS data • Second artificial head (HMS IV0, HMS III.0) or a BEQ II unit for four-channel recordings Extension Options • HEAD Recorder software (notebook/PC) • High-end headphones (e.g. HD IV.1 or HD IV.2) for aurally-accurate playback • Seat mount adapter HSM V • Bluetooth® adapter BTA for HMS III/ IV, BEQ II for receiving control signals of the HEAD Control Remote App (for Android as of V. 2.3.3) • Triaxial laser pointer TLP for exact positioning of the HMS IV.0 (easy mounting on head platform) • HEAD/ab, the modular multi-channel front-end system • SQuadriga II, the mobile recording and playback system Overview The artificial head HMS IV0 is probably the world's best-known binaural recording system to perform aurally-accurate recordings. Thanks to its 24-bit signal processing technology, the dynamic range of the HMS IV0 is comparable to that of human hearing. Immediately after turning it on, the HMS IV0 is ready for use. Measurements are saved aurally-accurate. Equalized playback is possible e.g. directly from a headphone connected to the built-in output. This allows sound events to be recorded and played back just as a person would hear them if the person had been in the same position as the artificial head during the recording. For wireless control from a smartphone or tablet, a Bluetooth® adapter and the Android app HEAD Remote Control are available. Mobile and flexible due to its battery, the HMS IV is ready for use for several hours.

CompactFlash Recordings can be saved directly to a CompactFlash card and played back from the card. The CF slot in the front side of the shoulder unit is easily accessible, so the card can be easily replaced. Playback Via the headphone output on the back side of the HMS IV.0, a direct playback of audio signals for monitoring or playback from the CompactFlash card is possible, e.g. with the optional dynamic headphones HD IV. 1 or USB Interface Recordings can be saved directly to a notebook or PC via the USB interface. Analog Output With its analog output, the artificial head can also be...

Standard Delivery Items • HMS IV0 (Code 1500) Digital Artificial head measurement system with CompactFlash and USB interface • Power supply for HMS IV 15 V / 60 W / XLR 4-pin 90 to 275 V AC, 50 to 60 Hz • HCF IV4 (Code 1599-4) CompactFlash card for HMS IV, 4 GB • PCC I.9x (Code 997x) Mains cable (local specification) • CUSB II.1.5 (Code 5478-1.5) Cable USB 2.0, 1.5 m (59") • CXX II.3 (Code 5177-3) Cable AES/EBU XLR 3-pin, male o XLR 3-pin, female, 2.95 m (118") • HEAD Tools setup DVD • HSC IV (Code 1524) Carrying case for HMS IV • Equalization CD • Manual For more information on other...

Miscellaneous Radiated emission according to: EN 61326-1 (equipment class A); radiated immunity according to: EN 61326-1; safety according to: EN 61010-1. Physical dimensions of the head designed according to ITU P58, table 1 and comparable to ANSI 3.36, table 1. Please note: Without HEAD Torso Box, some dimensions in P58, table1 are not applicable. The monaural frequency responses comply with ITU P58, table 4 and to those that can be derived from ANSI 3.36, table 3. For aurally accurate recordings of sound events with very low sound pressure levels (e.g. in the IT industry), the HSU...