[BigZ12]

I ran the Audacity clipping analyzer on this test track, there's no clipping in the audio stream. Which means the test track itself is clean.

Then I listened to it at high volume on my TRN BT20 + JVC IEMs, both via SBC and AAC. My JVCs didn't distort, but SBC sounded noticeably edgier in treble.

I don't own the MTW, but imo it's possible that the treble artifacts of SBC encoding with this track cause distortion in the MTWs.

Didn't you hear the very noticable difference with the "rolling bass" (like a high pitch metallic revereberation) from 08:00 to 08:30? It's so difficult to explain the difference, but it's like a "prrrr" with a kind of metallic cling/ring. It's completely gone with AAC, and on every headsets with SBC.
And if you're right regarding SBC with NFMI, then that's why the left is distorted regardless of the AAC/AptX connection to the source?

 

[chinmie]

Then I listened to it at high volume on my TRN BT20 + JVC IEMs, both via SBC and AAC. My JVCs didn't distort, but SBC sounded noticeably edgier in treble.

yes, i also find treble on SBC "raspier" sounding, while AAC sounded smoothly compressed, and APTX and LDAC treble is more like SBC but more controlled (the SBC is more raw sounding). all tested on the ES100 because it has all that codec.

interestingly, listening to indie rock, i prefer the SBC than the AAC. nowadays i just think of them as cable change. each has their own characteristics. but given the option i would go with LDAC or APTX if available , just on the safe side. but really even SBC and AAC are quite good enough

 

[clerkpalmer]

I can’t believe Sennheiser would make a product that has aac aptx on one ear pierce and sbc in the other. That would be a major fail and seems highly unlikely. They would get clobbered here.

 

[james444]

Didn't you hear the very noticable difference with the "rolling bass" (like a high pitch metallic revereberation) from 08:00 to 08:30? It's so difficult to explain the difference, but it's like a "prrrr" with a kind of metallic cling/ring. It's completely gone with AAC, and on every headsets with SBC.
And if you're right regarding SBC with NFMI, then that's why the left is distorted regardless of the AAC/AptX connection to the source?

No, I don't hear any metallic sound with the "rolling bass", just a little bit more edge in treble with SBC. But it's possible that my BT transmission uses higher bitrate SBC than yours, which would explane the difference in SQ.

 

[BigZ12]

I can’t believe Sennheiser would make a product that has aac aptx on one ear pierce and sbc in the other. That would be a major fail and seems highly unlikely. They would get clobbered here.

I hope you are right, but my findings are showing that something like this could be relevant.

 

[korefuji]

Has anyone had the jlab audio earbuds and the havit g1 And compared them?

 

[BigZ12]

No, I don't hear any metallic sound with the "rolling bass", just a little bit more edge in treble with SBC. But it's possible that my BT transmission uses higher bitrate SBC than yours, which would explane the difference in SQ.

Hmm. I have tested SBC with Apple TV 4, Macbook Pro, and SBC/AAC headsets with Avantree Leaf, CSR4.0 USB dongle.
Exactly the same sound with every source and headsets (Sony WH-1000MX3, Jaybird X3, Clipper Pro with Soundmagic E11C and RBH Prostereo H2)

 

[clerkpalmer]

I hope you are right, but my findings are showing that something like this could be relevant.

For a dork like me, this would be an awesome conspiracy if proven correct.

 

[clerkpalmer]

Wouldn’t the near field connection be a complete image of the master?

 

[james444]

Looks like NFMI may indeed be limited to SBC:

https://www.nxp.com/products/wireless/miglo:NFMI-RADIO-SOLUTIONS

 

[chinmie]

Looks like NFMI may indeed be limited to SBC:

https://www.nxp.com/products/wireless/miglo:NFMI-RADIO-SOLUTIONS

the Earin M2 use NFMI and supports Aptx and AAC

 

[clerkpalmer]

Looks like NFMI may indeed be limited to SBC:

https://www.nxp.com/products/wireless/miglo:NFMI-RADIO-SOLUTIONS

Something can’t be right. You guys are on to something though.

 

[korefuji]

The conspiracy unraveling

 

[BigZ12]

Looks like NFMI may indeed be limited to SBC:

https://www.nxp.com/products/wireless/miglo:NFMI-RADIO-SOLUTIONS

It this is the case with the MTWs, and I actually did hear the difference on left/right with SBC/AAC/AptX, I am a little proud of my hearing and test procedures.
Cause as I've said "a million times", the left speaker on the MTWs sounds like SBC regardless of codec used from the source.

 

[korefuji]

https://www.indiegogo.com/projects/hyphen-the-gold-standard-of-wireless-earbuds Fully funded mostly similar features to other buds but cheap as hell. What’s the catch?