Hard disk timing is irrelevant since it contains data (and not the music), meaning - it has no time base. In this scheme timing of computer is irrelevant, other than overall electrical noise it is creating. When buffer is too low it sends message to computer "more samples per frame" until buffer is close to be full, then it sends message "less samples per frame". I suspect that most of new DACs use asynchronous transfer in which DAC is running with its own stable clock synchronizing with computer (to avoid loosing samples) by storing samples in the buffer and telling computer to increase or decrease number of samples per frame. Synchronous DAC timing is created (synchronized) by computer's USB bus and traffic on this bus (or computer's activity) can possibly affect timing (jitter). There are two different types of USB DACs Synchronous and Asynchronous. It might be irrelevant if you don't do any heavy processing at the same time. Question In my PC the audio is not playing in 5.Firewire doesn't engage main computer processor in transfers. Question How can I use my mic jack as a headphone jack? Question Realtek Drivers Completely Broken after BSOD Question In my PC the audio is not playing in 5.1 mode Solved! I have tried everything to get my microphone headset to work on my newly built computer and nothing has worked. Question Every microphone That plug in to my two laptop has static noise. Question Realtek Audio won't play stereo, only surround Question No realtek HD audio manager/Audio Problems Question Headset's microphone not detected by Realtek? Solved! Speakers and headphones are not recognized as separate devices, and sound plays in both. Question Microphone sounds as if it is inside the headset, rather than on the actual microphone sticking out part Question Realtek drivers not properly installing Solved! Does a software audio driver improve audio in any way or should I avoid drivers altogether (stick to Windows default)? Question Windows 7 "cannot start" Realtek HD audio, but Linux can Question Apple Headphones and Realtek Audio trouble Question Surround Sound Speaking Causing Static Solved! Question Better Audio quality - get external hardware compared to Realtek? Question Laptop no longer using headset microphone instead using built in mic Question Cannot change sample rate and audio bit rate in Windows Realtek(R) Audio *sometimes pops occur from voltage inconsitances such as power spikes if not on a power conditioner or ups (though doubt its this since you would have heard it on other sounds) (try using a different input on the receiver if possible and/or a dvi/hdmi output from your pc if possible, also check if other devices connected seem to do this if possible) as for random pops here and there throughout the movie it could be something wrong with your receiver but more testing would need to be done to isolate that. for example if your computer is outputting 2.0/2.1 PCM (uncompressed) but then needs to swap to 5.1 compressed DDL for movies it could cause a pop. *some receivers pop and crack when swapping between sources or between file types. *sometimes issues can occur with a ground loop >link for info< (but you would have already heard buzzing/crackling already on most things) *sometimes this is caused by the amplifier clipping (what volume do you run the movies at? anything abnormally high?) *sometimes popping occurs when household appliances when washers kick on unless you are on a ups (again, dont think this is an issue) (again, since its only on movies i dont think this is an issue)
*make sure the speaker wire is away from power wires and other distortions. (however since it only does this during movies makes me think this isnt the case) *check to make sure all of your connections are tight and not loose. If you use a single monitor or tv for all your sources and if your receiver has hdmi passthrough for video then running hdmi (either dvi or hdmi output from your video card) is likely a better way to hook up (better quality, more supported formats)Īs far as speaker popping issues are concerned. again, if you can i'd suggest hdmi/dvi-d out. having your sound set to this low for the 2.0 sound too would be a bit lower quality than you could be getting. When your soundcard is using DDL it automatically converts any audio sources to 48,000khz 16 bit such as audio from games and movies. even via spdif you should be able to play most games in 5.1 but windows and most of the web is all 2.0/2.1 sound only. cant think of it off the top of my head) and only supports uncompressed (such as PCM) for 2.0/2.1 sound. spdif output supports compressed 5.1 sound if its in DDL format (and one other format. I'm not sure what you mean by "allows me to enable 5.1 outside of dvd/bluerays".
i use a dvi-to-hdmi cable from my video card as my output since i use the hdmi passthrough of the receiver to my screen but i have my system set to 192,000 24bit and it sound great.
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