96k vs 44.1k... big difference

[Soundlurker]

^Yeah, but it sounds like a different impulse altogether to me.


As for CPU usage I'm contemplating recording guitars bass and vocals to a backing track in 96khz and then downsampling them but it sounds like a cumbersome approach, for dense metal mixes at least. However, I'd definitely consider it for an acoustic ballad for example.

 

[s34nsm411]

yeah different IR. I just opened the file and realized I had the "INT IR" switch in lecab still on... whoops! so it was on that default soloC_IR one

 

[Zozobra]

Listening to these comparisons has been a bit of a revelation for me

I've always adhered to Nyquist and recorded at 44.1. I was a physcist in a previous life, so it all made sense to me, and never tried to record at a higher rate.

I opened the comparisons (inc shadow walkers) expecting no difference, and likely for people to be ranting about a psychoacoustic difference only

Its a huge difference

I'm having trouble getting my head round it, from a theoretical point of view, but truth is in the sound, and its pretty clear that from now on I'll be tracking @88.2 or 96. Thanks chaps.

 

[gabriel g.]

I am on the iphone and cant listen to your clips but one question:
what converters are you using?

 

[drew_drummer]

I did a test as well. The 44khz and upsampled 96khz files are of the same performance. The real 96khz guitars are a different performance.
Here we go:

44khz DI
Upsampled 96khz DI
96khz DI

----

44khz Rhythm Guitars
Upsampled 96khz Rhythm Guitars
96khz Rhythm Guitars



As you can hear, not much difference between the 44khz and upsampled 96khz guitars but a quite evident difference when compared to the real 96khz in both DI and distorted guitars. How much of that difference is due to the different performance it is hard to tell but it is clear for me that the 96khz DI sound more pleasant and the 96khz distorted guitars sound smoother.


Schecter with 81->E-mu 1616m->Poulin Hybrit->Guitarhack between -1
No processing whatsoever.


Edit: 192khz 192

Honestly?? I'm hearing very little difference between any of these. But your DI's sound a bit clipped too me, was not pleasant to listen to :S

 

[drew_drummer]

http://dl.dropbox.com/u/2093596/test/lextacy96normalized.mp3
http://dl.dropbox.com/u/2093596/test/lextacy441normalized.mp3

I can however hear the difference here. It is night and day. Weird.

 

[locus_coeruleus]

he did say he used different impulses by accident.

 

[s34nsm411]

he did say he used different impulses by accident.

yeah I did... as far as the differences, I'm thinking maybe the aradaz impulse I used might have been recorded at a higher sample rate? This would explain why there is a difference between the two... and maybe the guitarhack ones were recorded at 44.1 so the upscale sounds the same in Shadow_Walker's example? could be one explanation

 

[Soundlurker]

I am on the iphone and cant listen to your clips but one question:
what converters are you using?

Input: Asahi Kasai (AK5394A)
Output: Cirrus Logic (CS4398)

Honestly?? I'm hearing very little difference between any of these. But your DI's sound a bit clipped too me, was not pleasant to listen to :S

I can't understand why anyone would not hear the difference between the real 96khz clip and the 44 and upsampled 96 ones. It's pretty huge tbh, and I'm listening to it on the reference monitors in my small control room instead of the main ones in the mixing room.

As for the clipping I suspect it's because I haven't done the 18v mod to my EMG81. I was monitoring the input levels and it wasn't clipping anywhere.

 

[TheWinterSnow]

actually the red line is what it looks like after ADC. the DAC process turns it back into a smooth waveform. I forgot what the name of it is exactly but a single smooth wave is placed at each sampling point and when they are all summed together it results in pretty much the exact same waveform being reproduced (not the same as lowpass). This is of course, unless your original waveform has higher frequency content than 2x your sampling rate

The most common method used is an active lowpass filter. They could use better filtering with more expensive gear, but in reality filtering implies low pass/high pass of some sort.