Signal flow INSIDE a Helix...?

What's Hot
@Digital_Igloo @rossyamaha ;

This came up on the facebook group.

As I understand it... Guitar > A2D conversion > tone shaping > D2A conversion > Out to XLR etc.

But what  happens with the USB when using the helix as an interface?

Is the USB signal taken directly after the Tone Shaping bit before the D2A conversion, or does it get taken AFTER the 'spur' to the XLR and then goes through another AD conversion so it can go into a computer?

In other words - if a person connects the helix to an external interface using XLR is the total number of AD/DA conversions the same because the "to the USB" bit in the Helix is not happening?

Does using a separate interface introduce more latency, irrespective of how small that is?

In my amazing diagram - is USB Option A accurate or Option B which has another conversion process?

Or is there something else?



ta
"Be careful. When a democracy is sick, fascism comes to its bedside, but it is not to inquire about its health."
Attributed to Albert Camus

Fancy a laugh: the unofficial King of Tone waiting list calculator: 

https://kottracker.com/

0reaction image LOL 0reaction image Wow! 0reaction image Wisdom

Comments

  • Danny1969Danny1969 Frets: 11458
    Normally the serial stream for the USB is created from the digital bus before any DA conversion. To do otherwise would be stupid. So A 
    www.2020studios.co.uk 
    0reaction image LOL 0reaction image Wow! 2reaction image Wisdom
  • fretmeisterfretmeister Frets: 26662
    Danny1969 said:
    Normally the serial stream for the USB is created from the digital bus before any DA conversion. To do otherwise would be stupid. So A 
    That's what I would expect but someone on facebook is claiming otherwise.

    "Be careful. When a democracy is sick, fascism comes to its bedside, but it is not to inquire about its health."
    Attributed to Albert Camus

    Fancy a laugh: the unofficial King of Tone waiting list calculator: 

    https://kottracker.com/

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom
  • stickyfiddlestickyfiddle Frets: 30028
    Surely it’s A? 

    Does this person on Facebook have any reason to believe it isn’t?!
    The Assumptions - UAE party band for all your rock & soul desires
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom
  • SporkySporky Frets: 32601
    fretmeister said:

    someone on facebook is claiming otherwise.

    Then it must be true! 
    Never forget that you are wearing your invisible tiara. 
    3reaction image LOL 0reaction image Wow! 0reaction image Wisdom
  • fretmeisterfretmeister Frets: 26662
    Surely it’s A? 

    Does this person on Facebook have any reason to believe it isn’t?!
    Because he says he gets the same latency from Helix into a separate interface as he does when just using the helix as the interface via USB. First he claimed that there wasn't 2 rounds of AD/DA conversion, then said it was negligible, and now seems to be unaware that adjusting latency settings in a DAW doesn't affect the internal operation of the helix.

    He actually claimed that helix had zero latency because if it didn't then modelling would have died years ago. I showed him a post from Digital Igloo where it was stated that total throughput is under 2ms and that using the loops increases that.

    Only then did he say - so we all have latency then...? 

    I asked what he was using to measure the latency - it seems that he's trusting the sliders in his DAW rather than using a O'scope plugin or similar.
    "Be careful. When a democracy is sick, fascism comes to its bedside, but it is not to inquire about its health."
    Attributed to Albert Camus

    Fancy a laugh: the unofficial King of Tone waiting list calculator: 

    https://kottracker.com/

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom
  • If you use all 4 of Helix's fx loops, with a digital pedal in each loop, you could wind up with 18 digital to analogue/analogue to digital conversions between your guitar and the output of the Helix ...


    Great thing about messing with gear is it saves you having to play anything ...
    0reaction image LOL 0reaction image Wow! 1reaction image Wisdom
  • jellybellyjellybelly Frets: 898
    Sounds like that Dunning Kruger fella has been up to his old tricks again 
    0reaction image LOL 0reaction image Wow! 2reaction image Wisdom
  • fretmeisterfretmeister Frets: 26662
    If you use all 4 of Helix's fx loops, with a digital pedal in each loop, you could wind up with 18 digital to analogue/analogue to digital conversions between your guitar and the output of the Helix ...


    I might point that out.
    "Be careful. When a democracy is sick, fascism comes to its bedside, but it is not to inquire about its health."
    Attributed to Albert Camus

    Fancy a laugh: the unofficial King of Tone waiting list calculator: 

    https://kottracker.com/

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom
  • RolandRoland Frets: 9376
    Surely it’s A? 

    Does this person on Facebook have any reason to believe it isn’t?!
    Because he says he gets the same latency from Helix into a separate interface as he does when just using the helix as the interface via USB…
    You can get latency if the digital sample rates are different. 
    • 44.1 kHzThe standard sample rate for CDs, often used for music related files.
    48 kHzA common sample rate for audio associated with video. It's also the default sample rate for many Bluetooth devices.
    Tree recycler, and guitarist with  https://www.undercoversband.com/.
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom
Sign In or Register to comment.