What Computer Volume Settings Provide the Best Sound?

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Q What software and computer control panel volume settings deliver the best sound when playing music using apps like iTunes and sending the digital output to a DAC? —John de Perczel

A The answer to that question is...it depends. The settings that you end up with will vary with the capabilities of your playback software as well as the performance of the hardware your computer is connected to.

When using iTunes, some DAC makers recommend setting the software volume control to 100%. At that setting, iTunes passes data to the DAC without attenuating volume in the digital domain, which can reduce the dynamic range of the original file. It’s also recommended that you turn off iTunes DSP settings like Sound Enhancer, EQ, and Sound Check (volume leveling) that can also degrade performance.

How your computer’s main operating system volume gets adjusted will depend on your software and hardware configuration. For example, when iTunes is used with AudioQuest’s DragonFly Red and Black DACs , the company recommends setting the software volume control to 100% and then using the computer’s main system volume adjustment to set levels. That’s because the computer’s system volume slider will adjust the DAC’s built-in volume controls by proxy when it’s connected to headphones. In other cases, it’s generally a good idea to set system volume to 100% when using iTunes and then adjust levels with your preamp or receiver’s volume control.

Sophisticated music playback software designed for high-res audio playback like JRiver Media Center, Roon, and Audirvana Plus offer greater volume adjustment flexibility than iTunes. With each package, there is no audible effect on dynamic range of the original file when software volume adjustments are made. Another benefit the iTunes alternatives bring: when a DSP setting like EQ or volume leveling is enabled, the software has sufficient processing headroom to apply the effect without a corresponding reduction in sound quality.

COMMENTS
pw's picture

A big question in the Tidal MQA user community is what volume to set the computer.. About 6 months Tidal had a update that removed volume control from the MacPro.. Tidal will control the computers volume (fixed), you control your Preamp for volume.. Works good..

Puffer Belly's picture

Nothing was mentioned about bypassing DirectSound and using instead a bit perfect method, such as WASAPI, ASIO, or kernal streaming. JRiver Media Center and foobar2000 both offer this and probably other software, but iTunes and Windows Media Player aren't two of them. iTunes is not what you use for bit perfect sound.

allanmarcus's picture

On a Mac, if all the DSP setting are off, like Sound Enhancer, EQ, and Sound Check, and iTunes volume is 100, and the bit rate/sample settings match the teack’s setting, bit perfect is achieved. Might not be so on windows, but if the vast majority of the music in iTunes is lossless CD quality, the data is passed bitperfect. If some of the music is higher than CD quality, the $10 bitperfect app can maintain bitperfectness

WildGuy's picture

Didn't really know about volume adjustments until now. cool.:)

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