The problem of oscillations of sound quality

[davide256]

It seems that the laptop sound worse when running only batteries, secondary when the battery is charging, and is best when working on a battery charger without a battery.

 

Which is most likely symptomatic of all the power saving mechanisms on battery robbing you of CPU processing power.

[Forgisound]

Which is most likely symptomatic of all the power saving mechanisms on battery robbing you of CPU processing power.

Yes, I think you're right. I do not know whether the Windows completely exclude savings.

 

Well, maybe it is questionable concept of battery power. Each battery, in terms of noise, there are a lot worse than the average characteristics of the capacitor. And we know that the capacitor in the power supply is a necessary evil, is not it?

 

I'm no expert, so maybe I can blurt something stupid, you can feel free to correct.

[mansr]

Yes, I think you're right. I do not know whether the Windows completely exclude savings.

 

Power saving feature might result in skips/drop-outs. If that's not the problem, something else is the cause.

 

Well, maybe it is questionable concept of battery power. Each battery, in terms of noise, there are a lot worse than the average characteristics of the capacitor. And we know that the capacitor in the power supply is a necessary evil, is not it?

 

I'm no expert, so maybe I can blurt something stupid, you can feel free to correct.

 

The power directly from a battery is very clean. Any differences in sound are more likely due to different voltage regulators being used. When charging the battery, you'll also get interference from the charging regulators.

[Forgisound]

Power saving feature might result in skips/drop-outs. If that's not the problem, something else is the cause.

 

 

 

The power directly from a battery is very clean. Any differences in sound are more likely due to different voltage regulators being used. When charging the battery, you'll also get interference from the charging regulators.

 

Thanx for explanation. In addition to the laptop, I compared a battery and a linear power supply Micromega MyDAC. The battery is in both cases the problem in a much reduced dynamic. Do you know the reason?

[mansr]

Thanx for explanation. In addition to the laptop, I compared a battery and a linear power supply Micromega MyDAC. The battery is in both cases the problem in a much reduced dynamic. Do you know the reason?

 

Are you saying powering the DAC from a battery resulted in worse sound than when using a linear power supply? What type of battery did you use? What are the output voltages of the battery and the LPS?

[Forgisound]

Are you saying powering the DAC from a battery resulted in worse sound than when using a linear power supply? What type of battery did you use? What are the output voltages of the battery and the LPS?

I do not know, it was at a friend. There were four, we listened for a long time and repeatedly changed the power supply. Battery sounded softer, perhaps more beautiful in the midrange area, but with a limited dynamics and with a little more reserved ends the sound spectrum.

[Sam Lord]

Unless your laptop is running extra processes during the bad sound times, it's not a software problem, it's a hardware problem. If so it's either the power entering your house or some AC noise generated inside the the house. Do you have a different routine on different days? Some days my audio just grates me, but that's only when I'm quite sick.