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All batches shipped

VK-X SHIPPING SCHEDULE

Updated 14.05.2019

 

Hello everyone,

Lucas here, I hope you are doing well. Please find in this article:

  • Our shipping schedule
  • Information about how shipping works

 

We are indeed fully concentrated on assembling, soldering, flashing the software, performing quality control checks and shipping the VK-X to our 720 first backers. Unfortunately, this process is taking more time than expected since each pair of headphones, as we realized, takes at least 2 hours to be entirely completed and then shipped. We are now 9 people working almost full time on headphone production (Baptiste and I also need to do other tasks related to running the company).

Shipping schedule (updated on 14.05.2019):

  • Batch 2: from 23rd of February until 1st of March ~ 90 units 
  • Batch 3: from 2nd of March until 12th of March ~ 90 units ✅
  • Batch 4: from 13rd of March until 1st of April ~ 100 units 
  • Batch 5: from 2nd of April until 14th of April ~ 110 units 
  • Batch 6: from 15th of April until 30th of April ~ 110 units 
  • Batch 7: from 1st of May until 14th of May~ 130 units ✅

 

Please note that you can check which batch is being shipped on the blog’s header to see if we are ahead or behind schedule.

As a reminder, please find below additional information about shipping:

  • A couple of days before your batch shipment begins, I will ask you to confirm your shipping address
  • All shipments will feature a tracking number and will be delivered with signature only
  • You will receive an email notification once your VK-X has been shipped

 

I am sorry for those delays and I understand the impatience of you all. We are doing our best, and the first feedbacks are great so far: we look forward to delivering your VK-X 🙂

I am at your disposition if you have any other questions and will be happy to help: please just comment!

I wish you a great weekend,

Lucas

BLUETOOTH AUDIO STREAMING

Part 1 – Why Bluetooth 4.2 over 5.0?

Hi everyone,

We have received an overwhelming number of responses concerning the VK-X and I would like to personally thank you for your support and commitment to our project.

Today I am going to the take the time to respond to a question that has come in a number of emails.

 

Will the VK-X have Bluetooth 5.0?

 

The answer is NO for several reasons. It will, in fact, be 4.2 and it will indeed have the same efficiency of that of 5.0 Bluetooth (that is to say compatible with Bluetooth 5 devices for audio streaming), but I am going to take the time now to explain why we made this choice.

When the Bluetooth Special Interest Group (SIG) announced the creation of Bluetooth 5.0 in 2016, there was a lot of buzz generated for this seemingly major advance in wireless technology. What is interesting, however, is to see at what point certain parties including media outlets and invested companies have questionably manipulated this information for their benefit.

Here are the ‘ameliorations’ proposed by Bluetooth 5 technology that you see everywhere:

  • Range x4
  • Throughput x2

 

What we don’t see or what is not often stated is that, firstly, one must choose between the two ameliorations. It is one or the other in relation to the radio chosen by the system integrator (“PHY”). On the other hand, these ameliorations are exclusively for BT LE (Low energy products), which is technology dedicated to the internet of things with a very low energy consumption. The Bluetooth low energy sends small packets of information and isn’t really adapted to continuous music streaming.

Bluetooth Classic is the technology used for audio applications, via a superieur bandwidth (3 Mbps in theoretically 2.1 Mbps actually) and a profile dedicated to audio applications “A2DP” (Advanced Audio Distribution Profile)

 

In all fairness, to do justice to the BT 5.0, Bluetooth 5 nevertheless sets a very solid foundation for the arrival of a new standard of audio streaming, with reduced energy consumption, to achieve a theoretical bit rate of 2 Mbps, effective around 1.4 Mbps.

Nevertheless, there are several problems to be resolved, via the creation of a new profile (like the profile A2DP used for audio streaming):

  • Recomposition of segmented data packets
  • Management of asynchronous data packets

 

 

To resume,

 

  • Audio streaming via Bluetooth is done via the A2DP profile, managed uniquely by Bluetooth Classic
  • The bandwidth of Classic Bluetooth is higher than the bandwidth of Bluetooth LE (5.0).
  • BT LE 5.0 is a preparation for the future of audio streaming that consumes less energy and yet uses enough bandwidth for high-quality audio streaming

 

 

In my next article about this topic, I will develop more. I will explain more about Audio Formats, Codecs and Bits. Please do not hesitate to post your questions: I will be happy to answer!

Baptiste