Going fully Wireless IEMs. Too soon? Or are we there yet?

[jeffri]

Tested CKR7TW with a sine wave on the 60hz. The SBC codec inhibit this high pitched noise, but aptX codec is clean on both side. It probably don't use NFME as I can separate both side to about 1 meter and the earpiece that on my ear still play the sound. Well, perhaps that's why it had this audio delay issue.

 

[clerkpalmer]

Tested CKR7TW with a sine wave on the 60hz. The SBC codec inhibit this high pitched noise, but aptX codec is clean on both side. It probably don't use NFME as I can separate both side to about 1 meter and the earpiece that on my ear still play the sound. Well, perhaps that's why it had this audio delay issue.

so how do they sound?

 

[dweaver]

Been trying to produce the sounds being bantered about regarding SBC and APTx etc. But my ears must be to old as I can not hear this sound.

Lucky for me as I just get to enjoy the music.

Listening to Bruce Spingsteen Thunder Road and switched back and forth from the MTW, WF700N, and N200.

The MTW is actually slightly warmer than the WF700N but manages to convey more of his rasp and musical detail. The N200 is the most neutral but loses some of the urgency in the music and feels a bit to high pitched. So MTW wins this round followed by WF700N and then N200.

 

[nc8000]

Tested CKR7TW with a sine wave on the 60hz. The SBC codec inhibit this high pitched noise, but aptX codec is clean on both side. It probably don't use NFME as I can separate both side to about 1 meter and the earpiece that on my ear still play the sound. Well, perhaps that's why it had this audio delay issue.

The G1 that is not using nfmi has no audio delay when playing videos

 

[jeffri]

so how do they sound?

A bit brighter sounding than I liked to. I'll gather my thoughts for this a bit later.

The G1 that is not using nfmi has no audio delay when playing videos

I guess the CKR7TW have added latency due to the use of dedicated DAC. My Note8 also seems to compensate the delay, so watching video is fine here. Not the case when I connected to my Windows 10 laptop though.

 

[james444]

The G1 does aac and does not use nfmi

Ok, now that we've clarified the NFMI part, I'm wondering why I can't get my G1 to switch to AAC with my LG V30.

With my TRN BT20, that supports both SBC and AAC, I can simply switch the codec in developer options. With the G1, it reverts to SBC when I try to switch to AAC.

 

[korefuji]

For those that have tried both jlab audio air and havit g1 which is your preference?

 

[AnakChan]

A bit brighter sounding than I liked to. I'll gather my thoughts for this a bit later.

I guess the CKR7TW have added latency due to the use of dedicated DAC. My Note8 also seems to compensate the delay, so watching video is fine here. Not the case when I connected to my Windows 10 laptop though.

Listening to the ATH-CKR7TW (Grey) and agreed that it’s a little mids to treble prominent than expected. Also it holds in only via the stem & tips. It’ll definitely fall out during gym workouts.

More and more I’m liking the M&D MW07 in terms of sound and fit.

 

[nc8000]

Ok, now that we've clarified the NFMI part, I'm wondering why I can't get my G1 to switch to AAC with my LG V30.

With my TRN BT20, that supports both SBC and AAC, I can simply switch the codec in developer options. With the G1, it reverts to SBC when I try to switch to AAC.

Well I don’t know if the G1 is using aac, I only use them with an iPhone and don’t have a Mac so can’t see what what codec is actually used but it states that they support aac on the Banggood site where I bought them and I don’t get the artifacts described earlier when trying the tone generator so I assume I’m on aac

 

[nc8000]

A bit brighter sounding than I liked to. I'll gather my thoughts for this a bit later.



I guess the CKR7TW have added latency due to the use of dedicated DAC. My Note8 also seems to compensate the delay, so watching video is fine here. Not the case when I connected to my Windows 10 laptop though.

I’ve only tried on iPhone but don’t have any sync issue with local videos, iTunes stor videos or YouTube videos

 

[chinmie]

now following this whole codec stuff, i did experiments with my TWS: Earin M2, Jabra 65t, Sony WF-1000X, and Sabbat X12.

using the tone generator set to 20hz, i switched between SBC and AAC on all of them (with the exception of the M2 that can go to APTX)

http://www.szynalski.com/tone-generator/

here are my findings:

Sabbat and WF1000X:
i can hear digital squeal/noise that plays along the 20hz tone. the Sabbat displays this squeal more audible/louder than the WF1000X. both have the same conclusion: the digital noise has a higher pitch on SBC, while on AAC it has a lower pitch and volume.

Jabra 65t:
now this one was interesting. on AAC it has similar pitch digital noise like the sabbat and sony, but on SBC, it displays a "revving" digital noise that started on low pitch, then it goes up and then stopped at a constant pitch.

Earin M2:
on this, i can't find any difference between the SBC, AAC on this particular experiment. it has that digital pitch, but in really low volume compared to the 20hz tone, and lower compares to the other TWS. toggling between AAC and SBC the noise are similar.

 

[korefuji]

Well I’m going back to the jabra elite 65t active - I started with these and ironically end up going back to them as they seem to offer best bang for buck and decent sound. If it ain’t broke I guess...

 

[jeffri]

Listening to the ATH-CKR7TW (Grey) and agreed that it’s a little mids to treble prominent than expected. Also it holds in only via the stem & tips. It’ll definitely fall out during gym workouts.

More and more I’m liking the M&D MW07 in terms of sound and fit.

The 3d wing do help with keeping it secure though, but I agree that I won't use it for workout either. It never fall off on me even for over 4 hours continuous usage, but I also don't feel it gripping securely to my ear.

 

[AnakChan]

The 3d wing do help with keeping it secure though, but I agree that I won't use it for workout either. It never fall off on me even for over 4 hours continuous usage, but I also don't feel it gripping securely to my ear.

The 3D wing of the MW07 made it the most snug fitting. I’d probably use the MW07 in the gym if I had it. But the short battery life, & BT 4.2 are somewhat of a show stopper for me. I still get cut outs with my 65t!!

P.S. took a shower with my 65t yesterday. Survived...

 

[james444]

Well I don’t know if the G1 is using aac, I only use them with an iPhone and don’t have a Mac so can’t see what what codec is actually used but it states that they support aac on the Banggood site where I bought them and I don’t get the artifacts described earlier when trying the tone generator so I assume I’m on aac

Well I hear the high pitched noise only faintly in the right earpiece on the G1. And only for very low frequencies like 30Hz or so, using the tone generator.

No artifacts on the left side, and right side noise gradually fades out once I go up in frequency to 80Hz or higher. Quite mysterious behavior on the G1.