Surround modes

Introduction

Your AVR350 processor provides all the key decoding and processing modes for analogue and digital signals.

Modes for Digital sources

Digital recordings are usually encoded to include information about their format type. The AVR350 detects automatically the relevant format in a digital signal, such as Dolby Digital or DTS, and switches in the appropriate decoding.

Modes For Analogue sources

Analogue recordings do not contain information about their encoding formats, so the desired decoding mode – such as Dolby Pro Logic – needs to be selected manually.

Mode Memory

The AVR350 has a comprehensive memory that allows it to store different settings for each source button. The text below applies to all inputs except ‘DVD-A’.

Dolby Digital or DTS audio data (sometimes collectively referred to as ‘bitstream’ sources) can be output in three mix modes, selected using the MODE button:

<Surround (e.g., five main channels plus a subwoofer for a 5.1 source)

<Stereo Downmix

<Mono Downmix

The AVR350 will remember which mix mode was last used with a bitstream source. See ‘Multi-channel Source Modes’ for more information.

Two-channel audio, regardless of whether it is analogue or digital also can be output in three mix modes, selected using the MODE button:

<Surround (e.g., Dolby Pro Logic IIx Movie, Neo:6 Music, etc.)

<Stereo (with effects applied for analogue or digital PCM)

<Mono

The AVR350 will remember which mix mode was last used with a two-channel source and, if ‘Surround’, which particular surround mode. See ‘Two Channel Source Modes’ for more information. If an effect mode has been applied whilst in Stereo, this will also be remembered.

There is a link between the mix modes for multi-channel bitstream (e.g., 5.1) and two-channel bitstream (2.0 or 2.1) sources. If a 5.1 source is played in Surround mix mode, the AVR350 will remember this for all bitstream sources (e.g., DTS-ES Matrix, Dolby Digital 3.0 etc.) and use the maximum number of speakers the signal is encoded for. As a result, when a 2.0 or 2.1 bitstream is played the Surround mix mode is recalled and the AVR350 enters Dolby Pro Logic IIx Movie mode to try to recreate the surround environment from what may be a Pro Logic encoded source. If you would rather listen to a 2.0 or 2.1 bitstream in ordinary stereo (with or without a subwoofer), press MODE to cycle through to the Stereo mix mode (e.g., Dolby Digital 2/0.0 on the display). However, if the source becomes multi-channel bitstream (e.g., 5.1) again, the AVR350 will recall Stereo mix mode and therefore output a Stereo Downmix of the multi-channel signal. Full surround output can be re-achieved by pressing MODE to cycle through to the surround mode encoded on the disc.

Digital multi-channel sources

Digital multi-channel source material is normally provided as ‘5.1 audio’. The ‘5.1 channels’ comprise of: left, centre and right front speakers, two surround speakers and a low frequency effects (LFE) channel. Since the LFE channel is not a full range channel, it is referred to as ‘.1’.

Surround systems decode and reproduce the 5.1 channels directly. Dolby Digital EX and DTS-ES enhanced decoding systems create one extra rear channel from information buried in the two surround signals of the 5.1 source. These EX and ES enhanced systems are sometimes referred to as ‘6.1’ systems. This extra surround back channel is normally reproduced through two separate loudspeakers, creating a ‘7.1 system’.

5.1 Playback on 7.1 speaker systems

When listening to 5.1 channel digital recordings, such as Dolby Digital and DTS on a 7.1 channel speaker system you will have two speakers producing no sound. These two surround back speakers can be assigned the same signal as the surround speakers in the ‘Speaker Sizes’ page of the Set-up Menu. When both the surround and surround back speakers are selected the volume from both will be reduced by 3 dB to keep the sound levels in balance.

English

AVR350

27

Page 26 Page 28
Page 27
Image 27
Arcam AVR350 manual Surround modes, Digital multi-channel sources
Page 26 Page 28

AVR350 specifications

The Arcam AVR350 is a high-performance AV receiver that epitomizes the blend of cutting-edge technology and sophisticated design. Known for its exceptional sound quality and advanced features, it caters to audiophiles and home theater enthusiasts alike. The AVR350 stands out with its robust build quality and user-friendly interface, making it an attractive option for those looking to enhance their home entertainment experience.

One of the key features of the Arcam AVR350 is its 7.1-channel amplification, delivering a powerful audio output of 90 watts per channel. This ensures that every sound in your favorite movies, music, or games is reproduced with clarity and depth. The receiver is equipped with advanced Dolby Digital and DTS decoding technologies, which allow it to support high-definition audio formats. This means users can enjoy a truly immersive surround sound experience, whether it’s the booming effects of an action movie or the delicate nuances of a classical performance.

Another standout characteristic of the AVR350 is its digital signal processing. Incorporating sophisticated algorithms, it optimizes audio performance for different environments, ensuring that listeners achieve the best sound quality no matter the size or shape of the room. The inclusion of Arcam's proprietary room EQ technology further enhances the listening experience by adjusting the sound to compensate for the room acoustics, providing a balanced audio output tailored to individual environments.

Connectivity options are comprehensive, with multiple HDMI inputs and outputs supporting high-definition video formats. The AVR350 also supports a variety of other audio-video inputs, including component and composite video connections, as well as analog audio inputs. This versatility makes it easy to integrate with a range of devices, including Blu-ray players, gaming consoles, and streaming devices.

For users keen on multi-room audio solutions, the AVR350 offers the capability to distribute audio to several zones, allowing you to enjoy different music or media in various parts of the home simultaneously. The intuitive on-screen menu simplifies setup and operation, ensuring that users can easily configure their systems according to their preferences.

In summary, the Arcam AVR350 is a well-rounded AV receiver that combines impressive audio performance, advanced decoding technologies, and flexible connectivity options. Its focus on high-quality sound and user convenience makes it an ideal choice for those looking to elevate their home entertainment systems. With the AVR350, enthusiasts can expect a level of audio fidelity that truly transforms the way they experience sound.
Top Page Image Contents