[HELP][ Screechy Noise on Very High Notes - AVS Forum
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post #1 of 5 Old 04-15-2013, 04:09 PM - Thread Starter
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Hello, I have experienced an issue where I will be listening to a song which many dynamics, lets say "Bohemian Rhapsody". When the lead guitar kicks in with its high notes, I hear a muted high pitch noise such as a screech as If either the speaker or the receiver isn't able to produce that sound. WHich maight be the cause? Also, at parts, the music sounds to mixed together and the instruments have no headroom. I am running a very cheap setup. JBL E80's. Yamaha RX V2090 , with the Treble set to 6+ dB. Might be the cause. The volume I'm playing it isn't loud also, it is about 50 - 60 dB. I'm feeding my receiver with an Asus Xonar Essence STX from my computer using FLAC files.
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post #2 of 5 Old 04-17-2013, 12:46 PM
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Quote:
Originally Posted by Marlon98 View Post

Hello, I have experienced an issue where I will be listening to a song which many dynamics, lets say "Bohemian Rhapsody". When the lead guitar kicks in with its high notes, I hear a muted high pitch noise such as a screech as If either the speaker or the receiver isn't able to produce that sound.

Does this happen at certain volume control settings, or all of them?
Quote:
Also, at parts, the music sounds to mixed together and the instruments have no headroom.

Do you have a head cold?
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I am running a very cheap setup.

JBL E80's. -
Actually reasonably passable speakers. However they should be fairly (2003?) old and may be damaged.
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Yamaha RX V2090 , with the Treble set to 6+ dB. Might be the cause. The volume I'm playing it isn't loud also, it is about 50 - 60 dB.

What happens when you turn the Treble back to zero dB?

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I'm feeding my receiver with an Asus Xonar Essence STX from my computer using FLAC files.

This card is supposed to have a good headphone amp. What happens when you listen with headphones?
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post #3 of 5 Old 04-23-2013, 01:34 PM - Thread Starter
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What is head cold? And the speakers seem in good condition. No scratches anywhere and that screechy sound only does it in some songs. Most noticeable in that song. About the volume part, I'll give it a try right now. #Update. So i gave it a go and still the problem persists with the guitar intro at 2:46 and some distortion in the cymbals before 2:46. Could it be just that certain file? I don't think so because the same problem occurs with the original full mix of the song. It actually distorts even more. This happens in all volumes. It CAN be the song but it makes no sense. Might be that I don't trust me receiver enough as it has clipped a couple of times before. Moreover, it's pretty old; built in the 1990's. Also, if I set the Treble adjuster to 0 dB. All it does is make the music sound very bad and still distorts.
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post #4 of 5 Old 04-25-2013, 07:58 AM
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The amplifier circuitry in the receiver is distorting the sound. I am very familiar with that music, and it is very demanding to reproduce without distortion. Setting the treble to +6DB is a sure way to make the problem much worse. Turn it down to 0.

Your speakers might be part of the problem too, but only in the sense that your current receiver cannot drive them properly. They need more peak current than your receiver can deliver, and you are experiencing distortion as a result when the amplifier runs out of current and goes belly-up for an instant. The E80 speakers can sound very good with the right receiver.

Getting a receiver that has a better power supply and amplifiers will get rid of 90% of the problem IMO. My experience has been that Yamaha's receivers have some of the worst-sounding amplifiers you can buy. You seem to be experiencing that. Yamaha's power ratings, by the way, are deceptive and ridiculous; ignore them.

I recommend the Harman-Kardon 1650, which IMO is probably the best-sounding one you can get for under $500. It will drive your speakers well.

It will be a huge improvement over what you have IMO.



Quote:
Originally Posted by Marlon98 View Post

Hello, I have experienced an issue where I will be listening to a song which many dynamics, lets say "Bohemian Rhapsody". When the lead guitar kicks in with its high notes, I hear a muted high pitch noise such as a screech as If either the speaker or the receiver isn't able to produce that sound. WHich maight be the cause? Also, at parts, the music sounds to mixed together and the instruments have no headroom. I am running a very cheap setup. JBL E80's. Yamaha RX V2090 , with the Treble set to 6+ dB. Might be the cause. The volume I'm playing it isn't loud also, it is about 50 - 60 dB. I'm feeding my receiver with an Asus Xonar Essence STX from my computer using FLAC files.
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post #5 of 5 Old 04-25-2013, 12:32 PM
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Originally Posted by Marlon98 View Post

What is head cold?

A head cold is like a sinus infection or an ear infection.
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And the speakers seem in good condition. No scratches anywhere and that screechy sound only does it in some songs. Most noticeable in that song. About the volume part, I'll give it a try right now. #Update. So i gave it a go and still the problem persists with the guitar intro at 2:46 and some distortion in the cymbals before 2:46. Could it be just that certain file? I don't think so because the same problem occurs with the original full mix of the song. It actually distorts even more. This happens in all volumes. It CAN be the song but it makes no sense. Might be that I don't trust me receiver enough as it has clipped a couple of times before. Moreover, it's pretty old; built in the 1990's. Also, if I set the Treble adjuster to 0 dB. All it does is make the music sound very bad and still distorts.

It seems possible that the distortion you are hearing is a flaw in the files that you are playing.

Try the questionable files on a completely different playback system.
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