Originally Posted by CHRIS650
when i set up audio midi to 44.1:
how will that behave with other audio... dvd playing, website browsing...
since all my CD's are ripped lossless, 44.1 kHz sampling, does this mean my computer is playing without interpolation?
Are you using a Mac? If so, there are a couple of things you should be aware of. In Audio Midi Setup, choose 44.1kHz, 24-bit or 16 bit (it does not matter). Then start iTunes and play. Your receiver should say 44.1kHz. If you have some songs in iTunes that are originally 96kHz or 48kHz, then you will have to quit iTunes, change it in Audio Midi setup and then relaunch iTunes and playback again. This is a deficiency in iTunes. You can overcome this in a couple of ways. If most of your music is 44.1kHz (all CDs are), then leave the audio midi setup in 44.1kHz. BTW, eyeTV and DVD player will change this output to a encoded bitstream and that will use dolby digital, etc. That will be fine. Within iTunes you will want to make sure that it is 44.1 (for bit perfect playback).
If you want to avoid this, you can buy a couple of different playback software. One of the cheapest one is Audirvana Plus. Just google it and get a 14 day trial. Enable iTunes integration and iTunes will use Audirvana to playback. Audirvana will automatically change the output sample rate to match the file's sample rate. It will also use hog mode so that the audio device is entirely taken over by Audirvana. There are other software for this purpose such as Amarra, Decibel, Pure Music, etc. They are all more expensive though.
In my system, I use a Musical Fidelity V-Link asynchronous USB to Toslink converter to output my music to my NAD T775HD receiver. The V-Link supports upto 96KHz including 88.2kHz also. I have tried out all the third party software that I mentioned above. Audirvana is pretty good - I might be buying it. It is $50.