Grainy sound in the highs drivers on voice only

[voodooless]

You can try using a signal generator and sweep the high frequencies, see if any of them excites the grainy sound? Don’t set the volume too loud. Start with a lower volume sweep and then slowly increase. Stop long before it becomes uncomfortable for you.

If you find the grainy sound, markt the frequency, and see it it disappears when you dial the volume down.

This one should work: https://www.szynalski.com/tone-generator/

As for video: just upload to YouTube.

 

[Lucifer1to10]

oh i think i managed to uploade the videos on YouTube 1---

2---https://youtube.com/shorts/YOVusCZMX_k?is=uUjyd2ZkCyLoXrre
3---https://youtube.com/shorts/y0qkcOlXQUg?is=SM6Ug8KOv0sKxCCN

 

[Lucifer1to10]

 

[Lucifer1to10]

 

[Andysu]

i don't get how i attach a video on here it just doesn't let me

just use youtube

 

[Andysu]

that is hard to notice , use a voice not music which has random music frequency notes going up and down

 

[Andysu]

oh i think i managed to uploade the videos on YouTube 1---

2---https://youtube.com/shorts/YOVusCZMX_k?is=uUjyd2ZkCyLoXrre
3---https://youtube.com/shorts/y0qkcOlXQUg?is=SM6Ug8KOv0sKxCCNr

voice sounds okay least to what i can hear on laptop and had it close to my ears , i was thinking you may have had the ( frequency sample rate set incorrectly )?
does it produce any noise when no source audio is being used ?

 

[dweeeeb2]

whenever I hear grainy voices is due to comb filtering. Do you hear it everywhere in the room?

 

[Lucifer1to10]

yes ,it is hard to notice over video, i have been listening generally in my listening spot, haven't thought about comb filtering will test al across the room ,and will try frequency sweep after that , haven't done that either

 

[solderdude]

Try pulling down the 5-7kHz band a little.
I hear some sibilance.

Could also be room interaction ?

Have you played with the placement in the room ?

Listened to 1 speaker outdoor ?

 

[voodooless]

I think this might just be the sound balance being off. Have you ever measured the speakers?

 

[Sokel]

Watching the RTA while playing the video, 2kHz to 5kHz are lighting up like Christmas.

I know a YT recording is not a quality index by all means but this sounds like something is way off.

 

[Lucifer1to10]

Try pulling down the 5-7kHz band a little.
I hear some sibilance.

Could also be room interaction ?

Have you played with the placement in the room ?

Listened to 1 speaker outdoor ?

i left everything flat for the recording,yes i know it has sibilance with out the eq set, managed to cut the sibilance but still i got the same grainy problem even if i do a complete high cut filter,space in the room is limited but yeah i tried moving them around the room ,the problem is they give the same grainy sound even if i listen at whisper level,it is like the grainy sound somehow ataches like a parasite to the word

 

[Lucifer1to10]

I think this might just be the sound balance being off. Have you ever measured the speakers?

no,how do i do that?

 

[Lucifer1to10]

Watching the RTA while playing the video, 2kHz to 5kHz are lighting up like Christmas.

I know a YT recording is not a quality index by all means but this sounds like something is way off.

tried that for a while the most light up i got was between 10k-12k area after setting the eq it was ok but still that annoying grainy sound would not go away

 

[voodooless]

no,how do i do that?

Get a measurement microphone, like the ones from MiniDSP.

 

[Lucifer1to10]

oh i got a new development,so i don t usually listen to tv on the tv internal speakers ,done that today same thing the sound is grainy ,my signal source the antena cable ,same on apps ,but i tried already with my phone conected directly to the amp ,and a laptop so that excludes the tv itself so all that remains in my mind is the power socket main in the wall or the power strips

 

[voodooless]

all that remains in my mind is the power socket main in the wall or the power strips

No! Those are definitely not the issue. Don't go on a wild goose chase.

 

[Lucifer1to10]

No! Those are definitely not the issue. Don't go on a wild goose chase.

well just plugged only the tv directly to the main socket with absolutely nothing else connected to the socket ,no change same grainy sound , though of the wall socket in the ideea that it s only 2 wire socket and no ground

 

[Lucifer1to10]

Found a video on youtube with dialog here for example you can clearly hear how the speakers sound, the grainy noise around each spoken word