great work! 

This should be a news thread. 

I’ll see if I can convert it. It ought to be a moderator feature to reclassify threads, but it isn’t. 

It's pretty impressive stuff. I want to know if you dove down deep into samples to clean these up.

I know some of the effects are available in the Sound Ideas Library but certainly not all of them.

Very curious to know your process. 

I will make this a news thread. 

I have no way to really explain, but here's what I got:
I used Audacity and Wavosaur. I use Wavosaur for pitchscaling the resampled audio. I save the pitchscaled sound to a subfolder in each folder the base sound comes from. I then put the regular sound and the pitchscaled one into Audacity. I apply a high-pass filter to the pitchscaled one and perform noise reduction with both the built-in tool and RX7 Elements Volume De-Noise tool. (We got it on sale). Some sounds, not many, are voiced over by me... With a high-pass filter. The rest I found from other sources, including Qtest1, Quake 2 and Mindgrid. I am sure that is a good explanation, yes? 

I would have to say winch2.wav is my favorite, alongside of the water sounds, player sounds, the zombie, the guns, and the medkey.wav 

I decided to create a bitly link so I can track downloads. Comments have been enabled for the file on Google Drive. Comment away!
bit.ly/seans-better-quality-quake-sounds 

http://bit.ly/seans-better-quality-quake-sounds

It wasn't a link in the previous post. 

where do I put the pk3 files? Do I have to unpack or rename? Which engines will it work with? 

There are 3 folders in the zip. Just drag those folders into the base Quake directory. 

Some are good but a lot have a nasty hiss. axhit2 and land2 show it up pretty clear. 

DarkPlaces and FTW uspport pk3s for Fitz based engines unzip the pk3 (they are zip files actually) to the appropriate sound folder. 

Wwhat do you mean? 

I will make a 22 khz version. I probably just went apeshit with the highs. 

Quakespasm-Spiked also supports pk3... i never tested, but it's listed as one of its many core features:
http://triptohell.info/moodles/qss/ 

Yeah QSS is great. Better than Quakespasm by a longshot. 

I have repacked the sounds into Quake PAK format for easier handling in ports like Mark V.

Dropbox link (zip, 34.2 MB):
https://www.dropbox.com/s/i430977tgjnmm9v/quake_hqsounds.zip?dl=0

How to use:
1) Unzip zipfile into your Quake dir
2) Rename the included pakx.pak files in id1/hipnotic/rogue subdirs for proper loading (e.g. if the last pak in your id1 subdir is named pak1.pak, rename pakx.pak to pak2.pak)
3) Load the game and enjoy 

Quake3 has the same armor sound 22.05 kHz
http://www.mediafire.com/file/5c2t03ik99thbud/ar2_pkup.wav/file 

The previous download link doesn't work. 

@zz I found the sound from Qtest. But thanks anyway.
@Barnak just get Quakespasm Spiked. 

There is no file in your dropbox link. 

Quakespasm-Spiked works for you, but it breaks demo compatibility (by default anyway). Demos are used often in the mapping community to share feedback. If someone records a demo in Spiked it will only play in Spiked unless specific steps are taken. Those steps BTW make Quakespasm Spiked exactly the same as QS. So what's the point?

There are good reasons people use their source ports of choice. Better to make versions of YOUR content available to others as opposed to forcing a specific version. 

My apologies, link must have changed when I reuploaded the file.

Proper link:
https://www.dropbox.com/s/gdpfkrhysj5etbd/quake_hqsounds.zip?dl=0 

"cl_nopext 1" should fix that demo issue.