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String Instruments Hi Freq Artifact

Posted: Sat Feb 02, 2019 8:50 am
by sjoens
I notice a hi frequency artifact coming from the Hall Strings & Cavernous Strings D4 note when sustained.

At least I can use Melodyne to correct it after converting output to audio.

Re: String Instruments Hi Freq Artifact

Posted: Mon Feb 04, 2019 11:58 am
by Acoustica Greg
Hi,

A high frequency artifact? Are you hearing it? Or just seeing it in a spectrum analyzer?

Greg

Re: String Instruments Hi Freq Artifact

Posted: Mon Feb 04, 2019 11:53 pm
by sjoens
Hearing it... like a single sine wave at high pitch. I can uoload a sample if you'd like, but depending on your hearing you may not notice it as I do. Tinitis has taken over my left ear with the right one following.

Re: String Instruments Hi Freq Artifact

Posted: Tue Feb 05, 2019 9:31 am
by Acoustica Greg
Hi,

Yeah, I probably wouldn't be able to hear it*. Can you see anything in Voxengo Spectrum Analyzer? Send us a project file that illustrates the problem

Greg

*Protect your ears, kids!

Re: String Instruments Hi Freq Artifact

Posted: Wed Feb 06, 2019 3:31 am
by sjoens
Not really sure what to see on it, so , no.

I put the Acoustica 31 band EQ on it and found the offending freq @3.2K.

I can fix it with a quad curve style EQ set to near exact freq and bring back some of the lost freq with the 31 band. Might even make it sound better.

Re: String Instruments Hi Freq Artifact

Posted: Wed Feb 06, 2019 9:45 am
by Acoustica Greg
Hi,

You should note that those presets have effects on them already:
Effects in Cavernous Strings preset.
Effects in Cavernous Strings preset.
cavernous_strings.png (73.8 KiB) Viewed 1318 times
You can try turning those off, tweaking them, or replacing them with similar effects that you prefer.

Greg

Re: String Instruments Hi Freq Artifact

Posted: Wed Feb 06, 2019 3:16 pm
by sjoens
Thanks Greg, I normally don't mind the default FX set but good to know.

I'm just glad I was able to weed out the awful noise on D4. I suppose most users don't notice it but I have one project that's only piano and strings with D4 repeating throughout... and with headphones it was just very annoying, almost ruining the piece (and the peace). :(

I'd say the artifact is in the sample itself and could be replaced there if the creators are so inclined to fix it.
If not, this will do.

Re: String Instruments Hi Freq Artifact

Posted: Wed Feb 06, 2019 3:33 pm
by Acoustica Greg
Hi,

Do you hear it without the effects that are built into the preset?

Greg

Re: String Instruments Hi Freq Artifact

Posted: Wed Feb 06, 2019 7:38 pm
by sjoens
Yes. The artifact seems to be from the way the sample was recorded.

Curious to know if D4 is from another recorded note spread over a range or the actual note recorded.

Re: String Instruments Hi Freq Artifact

Posted: Wed Feb 06, 2019 10:19 pm
by jlouvar
FWIW: I listened to D4 Hall Strings (fast & slow), and Cavernous Strings with two different sets of monitors, headphones, plus earbuds, and I'm not hearing a hi frequency artifact.

EDIT: I just checked it out with the SPAN Spectrum Analyzer, and I don't see any hi frequency artifact either.

Re: String Instruments Hi Freq Artifact

Posted: Thu Feb 07, 2019 1:26 am
by sjoens
Welcome to the twilight zone! :?

Re: String Instruments Hi Freq Artifact

Posted: Thu Feb 07, 2019 1:56 am
by dpaterson
You sure it's not just the Tinitus??? LOL!!!

(Just a bit of humor is all).

Re: String Instruments Hi Freq Artifact

Posted: Thu Feb 07, 2019 7:30 pm
by sjoens
Could be, if no one else can hear it. It's only on the one note, tho.

Re: String Instruments Hi Freq Artifact

Posted: Thu Feb 07, 2019 10:10 pm
by Mark Bliss
I have just spent a bit of time listening and analyzing the aforementioned presets, and I can neither hear anything unusual about D4 nor see any unusual spikes in those frequencies on a frequency spectrograph.

I am wondering about a possible hearing sensitivity issue? I can tell you there are certain notes on certain instruments that to me feel like when the dentist hits a spot with one of those high frequency cleaning tools, and it feels like it makes a direct connection to an aural nerve or something. :shock: Just a thought.

I also find some of those presets a little "brassy" and that a little dip in the EQ curve between 1k and 4k makes them sound a hint more "woody" to me. Either way, they aren't bad in context with other instruments.

Re: String Instruments Hi Freq Artifact

Posted: Thu Feb 07, 2019 11:02 pm
by Mark Bliss
Here is a few various string section samples of D4 whole notes, tell me if any have the artifact you hear in your project?
D4 render Mp3.mp3
(794.98 KiB) Downloaded 53 times