GLOSSARY

Sound field programs

CINEMA DSP

Since the Dolby Surround and DTS systems were originally designed for use in movie theaters, their effect is best felt in a theater having many speakers and designed for acoustic effects. Since home conditions, such as room size, wall material, number of speakers, and so on, can differ so widely, it’s inevitable that there are differences in the sound heard as well. Based on a wealth of actually measured data, YAMAHA CINEMA DSP uses YAMAHA original sound field technology to combine Dolby Pro Logic, Dolby Digital and DTS systems to provide the visual and audio experience of movie theater in the listening room of your own home.

SILENT CINEMA

YAMAHA has developed a natural, realistic sound effect DSP algorithm for headphones.

Parameters for headphones have been set for each sound field so that accurate representations of all the sound field programs can be enjoyed on headphones.

Virtual CINEMA DSP

YAMAHA has developed a Virtual CINEMA DSP algorithm that allows you to enjoy DSP sound field surround effects even without any surround speakers by using virtual surround speakers.

It is even possible to enjoy Virtual CINEMA DSP using a minimal two-speaker system that does not include a center speaker.

Audio information

ITU-R

ITU-R is the radio communication sector of the ITU (International Telecommunication Union). ITU-R recommends a standard speaker placement which is used in many critical listening rooms, especially for mastering purposes.

LFE 0.1 channel

This channel is for the reproduction of low bass signals. The frequency range for this channel is 20 Hz to 120 Hz. This channel is counted as 0.1 because it only enforces a low frequency range compared to the full-range reproduced by the other 5/6 channels in Dolby Digital or DTS 5.1/6.1-channel systems.

PCM (Linear PCM)

Linear PCM is a signal format under which an analog audio signal is digitized, recorded and transmitted without using any compression. This is used as a method of recording CDs and DVD audio. The PCM system uses a technique for sampling the size of the analog signal per very small unit of time. Standing for “pulse code modulation”, the analog signal is encoded as pulses and then modulated for recording.

Sampling frequency and number of

quantized bits

When digitizing an analog audio signal, the number of times the signal is sampled per second is called the sampling frequency, while the degree of fineness when converting the sound level into a numeric value is called the number of quantized bits.

The range of rates that can be played back is determined based on the sampling rate, while the dynamic range representing the sound level difference is determined by the number of quantized bits. In principle, the higher the sampling frequency, the wider the range of frequencies that can be played back, and the higher the number of quantized bits, the more finely the sound level can be reproduced.

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Yamaha RX-V650 owner manual Sound field programs, Audio information, LFE 0.1 channel, PCM Linear PCM

RX-V650 specifications

The Yamaha RX-V650 is a dynamic and versatile home theater receiver that caters to audiophiles and casual listeners alike. Launched in the early 2000s, it has become a favorite for those seeking high-quality sound and a range of versatile features to enhance their audio and visual experiences.

One of the standout features of the RX-V650 is its powerful audio performance. It delivers a robust 6.1-channel surround sound system, boasting a total output power of 100 watts per channel. This capability allows it to drive a wide array of speakers, creating an immersive listening experience for music and movies. With support for a range of surround sound formats, including Dolby Digital EX and DTS-ES, the RX-V650 can effectively place the listener in the heart of the action, providing outstanding sound quality for both cinema and music playback.

In addition to its audio prowess, the RX-V650 offers a wealth of connectivity options. It includes several digital inputs, such as optical and coaxial ports, which allow for easy integration of various multimedia devices, including DVD players, gaming consoles, and streaming devices. The inclusion of component video inputs also enables high-definition video playback, making it an ideal choice for modern home theater setups.

The receiver's advanced technology features Yamaha's proprietary YPAO (Yamaha Parametric room Acoustic Optimizer), which automatically calibrates speaker settings based on the unique acoustics of the room. This not only simplifies setup but also ensures that the audio quality is tailored to the environment, enhancing the overall listening experience.

Another noteworthy characteristic of the RX-V650 is its user-friendly interface. The on-screen display allows users to navigate various settings and options seamlessly, making it easy to customize sound profiles or switch between inputs. Additionally, the remote control is designed for simplicity, providing quick access to frequently used functions.

In conclusion, the Yamaha RX-V650 stands out as a powerful and feature-rich home theater receiver. With its impressive audio performance, comprehensive connectivity options, advanced technologies like YPAO, and user-friendly interface, it remains a solid choice for anyone looking to elevate their home entertainment experience. Whether for watching movies, listening to music, or gaming, the RX-V650 presents a balanced blend of power and versatility, fulfilling the demands of a modern home theater system.