Originally posted by: Modelworks
Encoding does not introduce latency. Thats the whole point of doing the encoding in hardware. Well, I guess if 21us is considered latency maybe.
Actually it does introduce latency. Encoding does take time to happen and thus introduces latency. Whether it is audible or not - depends on system overall performance and settings.
I used nForce2 board and encoding introduced audible latency. Possibly with later implementations that problem was reduced. Still, read e.g. this Auzentech X-plosion review:
"So how can one explain the added CPU usage in the encoding format tests? I am not sure how to explain it other than there may be an instructional latency increase due to the encoding causing pauses between executed commands."
http://www.rage3d.com/print.ph...ound/auzentechxplosion
Originally posted by: Modelworks
You cannot have it free with any sound card.
google: RedocneXk - this is for sound blaster soundcards
or you can use AC3 filter that has AC3 encoding option
http://allyoucanupload.webshot.../v/2000422145437175323
I did not know creative were working on this. Did you read about it somewhere or is this a guess?
Encoding seems quite a straight forward thing to do - there are many cards that do that, but still to me this is a gimmick that MIGHT MATTER ONLY if:
1. you want to have gaming multi channel audio with effects encoded to digital stream
AND
2. you are using HIGH quality receiver that indeed means higher quality sound from the sound quality you can get off the analog outputs of the sound card.
For any other scenarios such as watching movies or using "digital" multimedia speakers there is no point in encoding audio.
Please note: DDL is COMPRESSED, LOSSY format . DTS Connect is supposed to be better then DDL but it is COMPRESSED and LOSSY, too.
There is no point compressing audio into lossy multichannel format such as ac3 just to pass it on to an average DAC built into Logitech, Klipsch or Creative speakers that will then turn digital into analog again.
The only reasonable argument for DDL/DTS is less cable clutter. But the fact the format is LOSSY, COMPRESSED and introduces LATENCY means I prefer to put up with cable clutter. Maybe it is just me, I am sure you will be happy with your choice.
IF industry decided to embrace AES_ABU standard and use it for HT systems that would be quite a different story. But SPDIF is not meant for 6 or 8 channels of audio (incl. LFE) It was adapted for this purpose because it is cheap to implement. Never confuse good price with good quality.
Good luck and take it easy..