on memory play, I've set this to hog mode with hybrid memory. I can only see options such as 44.1 to 192khz. Not sure how you set this to auto - ie no up or down sampling. Its almost like the images were very cleanly etched but unreal - quite like cardboard images. Upside is it does improve the 3D imaging slightly. On redbook materials, I prefer no up sampling. I've not transferred any HD tracks over to the system yet. I've been trying the various options within PM including: On some tracks, I prefer one over the other. But I find the soundstage to be less deep than PM. By and large, Audirvana sounds more analogue - less "grain". I've been playing both Audirvana and PM and I find their presentations very different. Things like memory play are helpful but the underlying framework has to be there to derive the most benefit from it. A computer works most efficiently and draws power more steadily and smoothly under balanced steady-state load conditions, not when surges in CPU demand are continuously interspersed with idle states while the audio is playing. The temporal aspect can be influenced by things like periodic surges in power demand affecting the signal reference levels in hardware even in the digital domain. Bits are only bits except when we are talking real-time delivery of audio because the temporal aspect, the business of actually delivering the bits to the hardware, is critical.
#Amarra vs audirvana vs pure music code
The real reason for differences in quality has more to do with the degree of code streamlining, keeping data pipelines filled and flowing as smoothly as possible. This ended up actually harming the audio quality because of conflicts in the way the conversion was expected to be performed.
#Amarra vs audirvana vs pure music mac os x
It's true that some hardware and software manufacturers tried to be a little too clever with the conversion process when Mac OS X was first introduced many years ago. For example Apple specifies exactly how it is to be done. (I believe they will be posting the videos of the sessions in a month or so.) It is a slightly complicated topic but I will state up front that it is definitely not because of the math or integer to floating point to integer conversion etc. Rob - I shared some of my thoughts on the topic of why computer audio sounds good and why there are sonic differences between what are deemed bit-perfect audio software players at the Advances in Computer Audio seminar at the past RMAF.
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