0912HP_EU 09-12-2003 12:12 Pagina 8

8ENGLISH

If we wish to reproduce all those effects through an audio system, than we need to take IID, ITD, pinna effects, room impulse response, etc. into account.That is where Head-Related Transfer Functions (HRTF) come into play.

An HRTF is a mathematical equation that describes how a sound is effected when travelling from its source to our ears.

There are several ways to synthesise an HRTF.The most common way to measure an HRTF makes use of placing tiny microphones in a listener’s ears.

Every person has its unique HRTF. However, we can identify crucial parts in an HRTF that are responsible for localization of sound as if this sound would be radiated by a typical home cinema speaker set-up.

When these parts are synthesized in an optimal way, a typical 5 speaker set- up listening experience is created.

HRTFs are implemented in real-time Digital Signal Processors (DSP) and will then be applied to audio signals in order to reproduce "spatial" cues, i.e. create a sense of directionality.

It is through these techniques that Philips is able to bring you a home cinema experience through a headphone that is as real as when you would be listening to an actual 5.1 speaker set-up.

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Philips HP1500 manual English
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HP1500 specifications

The Philips HP1500 is a cutting-edge hairdryer that epitomizes the marriage of technology and user-friendly design. With its sleek aesthetics and high-performance capabilities, this hairdryer is aimed at those seeking an efficient yet gentle way to style their hair. One of its standout features is the powerful motor, which delivers high airflow for faster drying times without compromising on hair health.

The HP1500 utilizes advanced ionic technology which significantly reduces static electricity, allowing for a smoother and shinier finish. This is particularly advantageous for individuals with frizzy or unruly hair, as the negative ions generated during the drying process help to seal the hair cuticle. As a result, users can achieve salon-quality results at home.

Another important characteristic of the HP1500 is its adjustable heat and speed settings. The device typically features multiple heat settings, which allow users to customize the drying experience based on their hair type and styling needs. Whether you're drying thick curls or fine straight hair, the flexibility provided by these settings ensures optimal results while minimizing heat damage.

Additionally, the HP1500 is designed with user comfort in mind. With an ergonomic handle and lightweight construction, it becomes easy to maneuver during styling sessions. This is particularly beneficial for those who engage in longer styling routines, as it reduces arm fatigue.

The hairdryer also includes a concentrator nozzle, which focuses airflow for precise styling. This feature is particularly useful for creating sleek, straight looks or defined curls. Furthermore, the cord length is often sufficient to facilitate easy movement during use, enhancing the overall user experience.

Durability is another characteristic that consumers can expect from the Philips HP1500. Built with high-quality materials, this hairdryer is designed to withstand regular use while maintaining its performance over time.

In summary, the Philips HP1500 combines powerful performance, advanced technology, and user-friendly design into a single hairdryer. Its key features include ionic technology for frizz control, adjustable heat and speed settings for customization, an ergonomic design for comfort, and a concentrator nozzle for styling precision. With its reliable performance and thoughtful construction, the HP1500 stands out as an essential tool for anyone serious about hair care and styling.
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