User manual YAMAHA A-55N-B-35N

[. . . ] 3 Locate this unit away from other electrical appliances, motors, or transformers to avoid humming sounds. 4 Do not expose this unit to sudden temperature changes from cold to hot, and do not locate this unit in a environment with high humidity (i. e. a room with a humidifier) to prevent condensation inside this unit, which may cause an electrical shock, fire, damage to this unit, and/or personal injury. 5 Avoid installing this unit where foreign object may fall onto this unit and/or this unit may be exposed to liquid dripping or splashing. [. . . ] (If the sound field programs are off, you listen with normal stereo reproduction. ) Press u / d to display the information about the input signal. Notes · This feature is not available when 6CH INPUT is selected or the unit is receiving a digital signal with a sampling frequency greater than 48 kHz. · The sound from the LFE channel will be mixed and output from the headphones. I Normal stereo reproduction Press STEREO to turn off the sound effect for normal stereo reproduction. Press STEREO again to turn the sound effect back on. STEREO STEREO or EFFECT (Format): The display shows the signal format. When the unit cannot detect a digital signal it automatically switches to analog input. in: The display shows the number of input signal source channels, as follows: For multi-channel soundtrack such as front 3 channels, surround 2 channels and LFE, the display shows "3/2/ LFE". fs: The display shows the sampling frequency. When the unit is unable to detect the sampling frequency "Unknown" shows in the front panel display. When the unit is unable to detect the bit rate "Unknown" shows in the front panel display. flg: The display shows the flag - data encoded in a DTS or Dolby Digital signal that causes this unit to automatically switch to the appropriate decoder for playback. Front panel Remote control 26 DIGITAL SOUND FIELD PROCESSING (DSP) Understanding sound fields A sound field is defined as the "characteristic sound reflections of a particular space. " In concert halls and other music venues, we hear early reflections and reverberations as well as the direct sound produced by the artist(s). The variations in the early reflections and other reverberations among the different music venues is what gives each venue its special and recognizable sound quality. YAMAHA sent teams of sound engineers all around the world to measure the sound reflections of famous concert halls and music venues, and collect detailed sound field information such as the direction, strength, range, and delay time of those reflections. In CINEMA DSP sound field programs, YAMAHA's exclusive DSP processing is added to the Front left and right, and Center channels, so the listener can enjoy realistic dialogue, depth of sound, smooth transition between sound sources, and a surround sound field that goes beyond the screen. When a DTS or Dolby Digital signal is detected, the CINEMA DSP sound field processor automatically chooses the most suitable sound field program for that signal. L SURROUND SOUND FIELD PRESENCE SOUND FIELD DIALOG EFFECT MUSIC R SURROUND SOUND FIELD In addition to the DSP, this unit is equipped with a variety of precise decoders; Dolby Pro Logic decoder for Dolby Surround sources, Dolby Pro Logic II decoder for Dolby Surround and 2-channel sources, Dolby Digital/DTS decoder for multi-channel sources and Dolby Digital + Matrix 6. 1 or DTS + Matrix 6. 1 decoder for adding a surround back channel (the surround back channel is outputted from virtual surround back speaker). You can select CINEMA DSP programs to optimize these decoders and the DSP sound patterns depending on the input source. CINEMA DSP Programs The following list gives you a brief description of the sound fields produced by each of the sound field programs. Keep in mind that most of these are precise digital recreations of actual acoustic environments. Select the sound field program that you feel sounds best regardless of the name and description given for it below. I For audio-video sources: No. 4 Program ENTERTAINMENT/ Game MUSIC VIDEO Features This program adds a deep and spatial feeling to video game sounds. 5 This program lends an enthusiastic atmosphere to the sound, giving you the feeling you are at an actual jazz or rock concert. This program is provided for reproducing monaural video sources (such as old movies). The program produces the optimum reverberation to create sound depth using only the presence sound field. Though the presence sound field is relatively narrow, the surround sound field employs the sound environment of a large concert hall. This effect enhances the experience of watching various TV programs such as news, variety shows, music programs or sports programs. 6 TV THEATER/ Mono Movie TV THEATER/Variety/ Sports 28 CINEMA DSP I For movie programs No. 7 Program MOVIE THEATER 1 Spectacle Features This program creates the extremely wide sound field of a 70-mm movie theater. [. . . ] 87. 5 to 107. 9 MHz [Other models] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87. 50 to 108. 00 MHz · 50 dB Quieting Sensitivity (IHF, 100% mod. ) Mono/Stereo . . . . . . . . . . . . . . . . . . . . . . . . 2. 0 µV (17. 3 dBf) /25 µV (39. 2 dBf) · Selectivity (400 kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 dB · Signal to Noise Ratio (IHF) Mono/Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]