por partes
los 6700 6.1 no llevan decoder son simplemente altavoces nada mas
si quieres decoder tiene que ser los 5700 y estos soportan todo dd5.1 y dts y tiene entradas para poder conectar todas las consolas ,para la game cube necesitas un rgb con salidas compuestas o con el cable de serie te vale perfectamente
prologic 2 no es una maravilla de modo audio (es una conversion de el stereo a 5.1) pero lo sorportan perfectamente probado con el rogue leader y test de tie fighter dando vueltas y si que hay diferencias entre un dolby digital 5.1 y prologic 1 y 2 asi como no se puede comparar el dts con dd5.1 es comparar a dios con un jitano....
su modo de funcionamiento es este CMSS
"Creative Multi Speaker Surround™ (CMSS) technology places any mono or stereo source in a 360o audio space "
que traducido biene a decir, que es una tecnologia que convierte cualquier fuente mono o estereo en sonido envolvente,es lo mismo pero no pagan otra patente a dolby, por una tecnologia propietaria y desarrolada por ellos que hace lo mismo convertir una fuente en otro modo de audicion, pero no esperes maravillas avisado estas...
los logitech son muy caros la calidad es buena pero con unos 5700 vas a ir sobrado los 5500 no tienen nada que ver con estos ademas de ser muy normalitos.... como siempre dependes de tu bolsillo pero el esfuerzo merece la pena
saludos
p.d para que te empapes bien te adjunto una descripcion de los modos audio disponobles ahora mismo esta ingles pero sin problemas si dudas pregunta
Mono: Single channel sound and the most basic sound option.
Nicam Stereo: Probably the most common now and gives two left and right sound channels. All modern TV programmes, games, videos and DVDs have stereo sound.
Pseudo Surround/Q Surround: A technology that tries to mimic surround sound but still with only two speakers. Minute changes in the timing of the sounds try to fool the listener's brain into thinking that sounds are coming from the sides or behind. In practice it can sometimes work well, but it is no substitute for proper surround and is only of benefit if you sit dead centre in front of the TV.
Dolby Surround: The entry level "proper" surround sound, it adds two speakers at the rear with an extra channel of sound. The rear sound is mono, whereas the front is Stereo It is better than Nicam, but has since been superseded. The signal is "matrixed" in that it is really only two channel sound but converted to three speaker channels internally by the TV.
Dolby Pro Logic: Introduces a centre front channel for speech to have a more central focus. Like Dolby Surround, it is really only a two channel system split into four channels. Many recent games have the option for Dolby Pro Logic which give a good surround sound, as do newer videos and most DVDs.
Dolby Pro Logic 2: A new technology that isn't featured on many TVs yet. PL2 increases the bandwidth to the rear channels to increases the number of sound channels at the back to give stereo sound at the rear. The biggest change though is that it can take a standard stereo output and using some clever algorithms expand the sound into a five speaker (known as 5.0) surround sound. This is very useful not only for video games, but also for TV broadcasts, videos and DVDs which do not feature Dolby Digital or DTS 5.1 as standard (see below). The results are not as clear as a digital sound, but worthwhile nonetheless.
Some Gamecube games (notably Rogue Leader and Mario Sunshine) are programmed with Pro Logic 2 in mind. These games will sound even better when put through a TV or sound system with Pro Logic 2 capabilities.
Dolby Digital 5.1: Now we're really getting somewhere. This is a digital sound process that gives discreet 5.1 sound where each speaker has its own channel, as opposed to matrixed sound like Pro Logic where the sounds are merged into two channels. The sound is far clearer and for DVDs, DD5.1 is a revelation. Most DVDs, old and new, support it. So does the XBox for the vast majority of games. The PS2 does only for cut scenes and for DVD playback, not in game.
The .1 in 5.1 refers to a dedicated channel for a sub woofer. Low frequency (LFE) sounds encoded in the soundtrack are sent to the sub woofer for a much deeper bass sound.
There is also a Dolby Digital 6.1 EX which can give a matrixed (simulated) extra speaker in the centre rear. This will work with any Dolby Digital 5.1 source such as an XBox and a few DVDs support this to give improved 6.1 EX sound.
DTS: A rival format to Dolby Digital and one that arguably sounds better due to less compression. DVDs support DTS although not as many as DD5.1. Those that do tend to support both and it is very rare for a DVD to be DTS only.
The XBox and PS2 support DTS for DVD playback. EA have figured out a way to get DTS in game, but this is only DTS 4.0 (without the centre and dedicated sub woofer channels) and so far has only been implemented in a few games because of an alleged hit on performance. XBox games can support DTS but so far none have.
Like Dolby Digital, DTS also has a 6.1 matrix formats called DTS 6.1 EX which simulates an extra rear channel. There is also DTS 6.1 ES which gives a true discrete extra rear channel, but so far only a handful of DVDs support this and no games consoles.
Note that 6.1 is sometimes referred to as 7.1. This is where the extra rear channel is hooked up to two extra speakers instead of one. Both extra speakers produce the same channel, but it is the preferred option as the rear channel is not directly behind the viewer, a position that can sometimes confuse the brain as to where the sound is coming from.
bye bye
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o como???? ![[ginyo]](/images/smilies/nuevos/guinyo_ani1.gif "guiñando")
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