Sample rate 44100, 48000 or 96000 when using 320kbps?

Sample rate 44100, 48000 or 96000 when using 320kbps?

I’m using Traktor S4 PRO as my software & all the MP3’s I purchase are 320Kbps.

So what would be the best sample rate to use 44100, 48000 or 96000 when using 320kbps?

I understand if using WAV’s then 96000 would be the best option and keep the highest quality, but with 320kbps mp3 do’s would it be best to drop it to 48000?

At the moment i have it set to 96000, was wonder what other people have theirs set to & what bit rate the files they use are?

44100 is all you need

The reason I use it the way I do is on 96000 with a buffer of about 320 I get a latency of about 7.1ms.

Mp3 have a sample rate of 44100. The only thing you earn with increasing it in Traktor is CPU usage.

What have most you guys got your

A, Sample rate

B, Buffer size in mb
set to?

& whats the latency/processing time in ms with the setting you using?

They can also be 48000 so I guess that will be my new setting as I don’t play WAV’s.

But why can i achieve a lower Latency/process time with a higher sample rate?

Sample Rate: 44100
Buffer: 128

Procesing: 2,9ms
Output: 2,3ms
Overall: 5.2ms

I’ve just done a little experiment there and I’m not happy with NI!

If I use the S4’s sound card I get a lot higher latency than what I do with the same settings on my Pre sonus audiobox usb (external usb soundcard)!!!

For e.g.

Audio Device - Traktor Kontrol S4 (core audio)
Sample Rate - 48000
Latnecy 128 - processing 2.7 output 5.7 overall 8.4

Audio Device - AudioBox USB (core audio)
Sample Rate - 48000
Latnecy 128 - processing 2.7 output 1.5 overall 4.2

Thats a massive difference!

I have one theory that it could be to done with when using a external USB sound card all sound is handled by one USB cable and the NHL/midi by the other!
Either that of the sound card in the S4 (or drivers) are less than desirable.

The down side to using the S4 as a controller and dedicating a usb sound card is that the master volume is controller by the soundcard not the S4 and the headphones don’t work =(

I want my S4 sound card to have the results the USB sound card gets. If it is to do with amount of able I wouldn’t have minded the putting 2 on the S4 and saying the reason we have add the 2nd one with to handle the sound to make it shit hot!

any thoughts?

Anythoughts

did you try going lower? or is that just the default latency?

I could go lower at the risk of audio drop outs!

My main point is that my S4 sound card is 4.2ms SLOWER than running a external one on exactly the same settings!

Before slating, it would be pretty standard to lower it and find your optimum point. I’ve a feeling you’d probably get quite close to the other readout. Just lower it to 4.2, see what it’s like. If it is dropping out, increase notch by notch until you get clear audio coming through.

Erm, don’t you tell the soundcard what latency to run? I think those are just the defaults arenm’t they (he says having never had an S4, and going off a dim and distant memory of how he set up his A8)

This is true assuming that you don’t affect the pitch, effects or internal eq.

I tend to at least affect the pitch when I mix so I find a real advantage in a higher sample rate. I have good monitors and I can hear the difference between 44.1k and 96k, but the sound will only be as good as the weakest link in the chain eg audio interface - amp - speakers -ears.

Yeh, I’m not entirely sure how the S4 latency works cos I know it’s updated from Pro, but can’t you just lower the latency manually to find where it actually starts dropping out?

The latency is worked out via setting a buffer size in MB the lowest being 64mb and I have mine on 128 the second lowest setting! The processing time stays the say but its the output time that takes longer on the S4 why?

I have already test to see if it stable! The point most people are missing is that fact the none NI soundcard do’s the same job a lot faster in fact 2x’s faster 8.4ms was the S4 card and 4.2ms for the usb soundcard.

Do’s anyone else think the latency issue is due to a bottle neck in the USB? (I already have a good USB cable I got the one DJ Techtools are selling) I.E. Running NHL & the sound over one usb. Because when I use a external sound card only the NHL is sent via the S4 USB and audio handled by a 2nd USB to the soundcard splitting the load?

I’m using mine at the same latency achieved with an audio 8dj. are you on a mac or pc?

I’m on a mac book,

2.4 GHz Intel core 2 Duo
4GB DDR3

Man, you surely can decrease latency. I have pretty much the same machine but with 2g of ram and I’m getting better latency. 5,2ms leaves me a little extra headroom actually.

But its not the processing time thats slower its only the output timing that changes!

If I put it on 96000 and turn the buffer up to 320-512 I can get higher processing time but a lot lower output time, I.e. I can get the overall down to between 5.1ms (with pops and clicks) but more towards 512 it handles it with a lower overall time than if using 44100 or 48000?

What made me think was seeing how low yours was using 44100!

Whats slowing mine down as I said I’m using a good cable?

Are you turning off wifi and bluetooth before a gig? I’ts the only tinkering I do before each gig. Btw, I’m using the bundled S4 USB cable.