Editing Sound Field Parameters

What is a sound field

Changing parameter settings

What really creates the rich, full tones of a live instrument are the multiple reflections from the walls of the room. In addition to making the sound “live”, these reflections enable us to tell where the player is situated, and the size and shape of the room in which we are sitting.

■Elements of a sound field

In any environment, in addition to the direct sound coming straight to our ears from the player’s instrument, there are two distinct types of sound reflections that combine to make up the sound field:

Early reflections

Reflected sounds reach our ears extremely rapidly (50 ms

–100 ms after the direct sound), after reflecting from one surface only – for example, from the ceiling or a wall. Early reflections actually add clarity to the direct sound.

Reverberations

These are caused by reflections from more than one surface – walls, ceiling, the back of the room – so numerous that they merge together to form a continuous sonic “afterglow”. They are non-directional, and lessen the clarity of the direct sound.

Direct sound, early reflections and subsequent reverberation taken together help us to determine the subjective size and shape of the room, and it is this information that the digital sound field processor reproduces in order to create sound fields.

If you could create the appropriate early reflections and subsequent reverberations in your listening room, you would be able to create your own listening environment. The acoustics in your room could be changed to those of a concert hall, a dance floor, or virtually any size room at all. This ability to create sound fields at will is exactly what YAMAHA has done with the digital sound field processor.

You can enjoy good quality sound with the factory preset parameters. Although you do not have to change the initial settings, you can change some of the parameters to better suit the input source or your listening room.

1 5

1Press AMP.

AMP

2Turn on the video monitor and

press ON SCREEN repeatedly	ON SCREEN
	DISPLAY
to select the full display
mode.

3Select the sound field program you want to adjust.

1	2	3	4
5	6	7	8
9	0	10

Program No.

Program name

P04 MOVIE THEATER

Cursor .

;;;;0dB ;;15ms ;;1.0 ;;20ms ;;1.0

Parameters

Parameter values

RX-V657 specifications

The Yamaha RX-V657 is a versatile and robust AV receiver, designed to cater to both audiophiles and casual listeners alike. Released in the mid-2000s, this model quickly became popular due to its impressive feature set and solid performance, making it an excellent choice for home theater enthusiasts.

One of the standout features of the RX-V657 is its ability to deliver 6.1 channel surround sound. This receiver supports various audio formats, including Dolby Digital EX and DTS-ES, allowing it to immerse listeners in multi-dimensional soundscapes. Users can enjoy their favorite movies, music, and games with enhanced depth and clarity, ensuring an engaging audio experience.

The RX-V657 is equipped with Yamaha's proprietary YPAO (Yamaha Parametric room Acoustic Optimizer) technology. This feature automatically measures the acoustics of your room and adjusts the speaker settings accordingly, optimizing the sound output based on the specific environment. This ensures that you achieve the best possible sound quality, regardless of your room's shape or furnishings.

Another notable aspect of the RX-V657 is its connectivity options. The receiver comes with multiple HDMI inputs, allowing for easy integration with modern devices such as Blu-ray players, gaming consoles, and streaming devices. It also features legacy connections like component and composite video inputs, making it compatible with older equipment as well. Additionally, the inclusion of an FM/AM tuner ensures that users can enjoy traditional radio broadcasts.

The RX-V657 includes a variety of audio processing features, such as Yamaha's cinema DSP. This technology recreates the acoustic characteristics of famous concert halls and cinema environments, enhancing the listening experience for music and movie fans alike. The receiver supports multiple sound fields, giving users the flexibility to choose the optimal setting for their content.

In terms of power, the RX-V657 delivers a solid performance with 100 watts per channel. This wattage ensures that it can drive a wide range of speakers, providing sufficient power for both small and larger home theater setups. The RX-V657 also incorporates a high dynamic power capability, which improves performance during demanding audio passages.

The design of the RX-V657 reflects Yamaha’s commitment to quality, featuring a sleek, modern aesthetic with a user-friendly front panel. The intuitive layout of controls, along with a well-organized display, enhances the overall user experience, making it easy to navigate through various settings and features.

In conclusion, the Yamaha RX-V657 is a feature-rich AV receiver that combines advanced audio technologies with practical connectivity options. It caters to the needs of both casual listeners and dedicated audio enthusiasts, making it a valuable addition to any home theater system. Its blend of performance, versatility, and ease of use positions it as a highly regarded model in Yamaha's lineup.

Yamaha RX-V657 Editing Sound Field Parameters, What is a sound field Changing parameter settings

Models: RX-V657