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HDD Synth - Mechanical hard drive sound synthesis

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Reply 60 of 69, by jiefjifef

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MaverickUK wrote on 2026-07-22, 10:47:

The HDD Synth MKV hardware has arrived!

That's so cool! The fake HDD sound market is booming right now: HDD Clicker is working on a new and improved version too. Retro life is good.

I hope latency won't be a problem on the "real thing"? Have you tried to measure it, and/or compare its latency to even realer mechanical things?

Reply 61 of 69, by jiefjifef

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MaverickUK wrote on 2026-07-22, 10:47:

Also on the HDD Synth Win32 front, the latest release is available from https://github.com/MaverickUK/HDDSynth_Win32/ … ses/tag/v0.13.1

Some v0.13.1 feedback (tested on both win98se and winxpsp3):

- Settings dialog: Activity threshold slider now works (forgot to report this earlier but fixed nonetheless)

- I keep hearing random weird aggressively loud bursts of static, especially when experimenting with low latencies? Did something change that could have caused this?

- Audio buffering: the default value seems way too high, and why is the maximum value so huge? Surely nobody would ever be willing to wait 2 seconds before hearing their disk drive? (for giggles: if the hard drive was 700 meters away, admittedly there would be a ~2 second delay, also for reference, 50 meters away would mean ~145 ms of latency)

- I feel suspicious of the reported number of "glitches" per second, feels way too zealous and unhelpful to me, but I'm probably taking it too literally. When I seemed to find a suitable compromise between latency and disk sound quality, the dialog still reported dozens of glitches per second, even though my idle sounds were completely muted and nothing was happening at all, no sounds and no disk activity. Right now I find the glitchymeter too hard to interpret, and I don't want to have to live with e.g. 50-100+ ms of latency, no matter how "glitchy" it might be. Is there an unnecessarily tight loop playing in the background or something, and surely it at least does less work when the options dialog is closed?

- Please double-check that muting idle or activity sounds also actually disables the corresponding functionality completely, instead of still doing busywork and "playing" the sounds, just at zero volume

- Offer an option to reduce sound quality, for users who want low latency at all cost? Could there be "lite" versions of the sound files, does compression of caching help, any other tricks you can think of? I think low latency is super duper important (YOU may not have noticed it being slow, but your brain did)

- I would be feel more comfortable if the program just added a "dumb" normal shortcut in the Start / Programs / StartUp folder instead of whatever opaque thing "Run at Windows Startup" now does, especially since there is no uninstaller

- Suggestion: open the settings dialog if the user tries to launch the application again when it's already in the tray, the user is probably confused, and opening a competing instance is certainly the wrong thing to do here (use case: somebody can't or doesn't want to use the context menu, difficulty using the right mouse button or whatever but wants to access the settings dialog)

- Maybe even open the settings dialog automatically the first time the user opens the application (no settings file yet)?

- Also (or only?) put the hard drive model selection thing in the settings dialog, instead of (only) "hiding" it in the context menu? (if somebody can't or doesn't want to use the context menu)

- Also (or only?) put "Run at Windows Startup" in the settings dialog, instead of (only) "hiding" it in the context menu? (if somebody can't or doesn't want to use the context menu)

- Maybe also add an "Exit" button in the options menu, or would that clutter the dialog too much? (if somebody can't or doesn't want to use the context menu)

- More generally, why are some settings "hidden" in the right click menu and some are in the settings dialog? The choice seems pretty arbitrary? Just put everything in the same place? Also, icons are neat and all but they can be distracting: didn't Apple just start reducing the number of unnecessary icons in macOS menus in macOS 27 betas?

- The settings dialog is probably too wide, some people use win9x on a 640x480 resolution and it doesn't fit

Reply 62 of 69, by jiefjifef

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jiefjifef wrote on 2026-07-22, 17:26:

Argh, I meant that the author of HDD Clicker is working on a new version, or that HDD Clicker is being worked on or whatever. Friendly competition is probably very good for "consumers", I'm guessing HDD Synth might be a little bit pricier but maybe the sound quality will be slightly more accurate, can't wait for a comparison.

Reply 63 of 69, by crusher

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What a pity this won't work for DOS.
Been following this thread from the beginning on. Now that I realised I can't use it for my DOS build I'm out.
I think I will go with the improved HDD clicker version once it comes out.

Anyway this thing is amazing and professional done.
Every retro product is a welcome for the community.
I wish that everyone who has a use case will be happy with it.

Thanks MaverickUK for all your hard work on this. Keep it up!

Reply 64 of 69, by jiefjifef

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No, I'm pretty sure HDD Synth (the hardware) will still work just fine on DOS: it won't care which OS you're running and just does its thing without needing any help from the OS.

In fact, installing HDDSynth_Win32 (the Windows-only software) would be completely pointless if you already had the hardware.

MaverickUK: maybe the HDDSynth_Win32 (software) stuff should have its own separate thread to avoid any further confusion? I really do hope you'll keep developing both, even though the software will probably cannibalize some hardware sales. Also, I hope you didn't find it disrespectful that I mentioned the "competing" HDD Clicker project (again) in this thread, I was just so excited that both projects are being worked on.

Reply 65 of 69, by NeoG_

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crusher wrote on 2026-07-23, 06:06:

What a pity this won't work for DOS.

There is two separate discussions happening in the thread - One is the hardware project and one is the software project. The software project would have issues with DOS, but the hardware project as mentioned is operating system agnostic since it relies on hardware level signalling

98/DOS Rig: BabyAT AladdinV, K6-2+/550, V3 2000, 128MB PC100, 20GB HDD, 128GB SD2IDE, SB Live!, SB16-SCSI, PicoGUS, WP32 McCake, iNFRA CD, ZIP100
XP Rig: Lian Li PC-10 ATX, Gigabyte X38-DQ6, Core2Duo E6850, ATi HD5870, 2GB DDR2, 2TB HDD, X-Fi XtremeGamer

Reply 66 of 69, by MaverickUK

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I've spun off the software based HDD Synth Win32 into it's own thread

This thread will only be used for the hardware based HDD Synth going forwards, which as mentioned is designed to work with all computers

http://www.strifestreams.com

Reply 67 of 69, by crusher

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Thanks to all for the clarification!
I'm happy to hear that the HDD Synth ISA card as a hardware project will work in DOS computers as well 😀

Reply 68 of 69, by MaverickUK

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HDD Synth beta test signup
I've just ordered another run for a new revision of the MK5 prototype. Once I have this I'd like to test it with some willing volunteers before the product is sold via a Kickstarter later this year.

If you are interested, please go to https://forms.gle/ZnynzMdne47vVxBB9 and complete your details

Screenshot-2026-08-03-at-14-19-58.png

What do you get?
An HDD Synth MK5 prototype to test out and keep. You can consider it limited edition, as the final version won't have the "Prototype" branding on it

What do I need to do?
Test the device out in as many computers as possible. I want to test it in modern computers, retro PCs, Amigas, Ataris and anything else.|

What will it work in?
Anything that has a 5v power rail and an HDD activity LED header

http://www.strifestreams.com

Reply 69 of 69, by MaverickUK

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Thanks to everyone who has completed the beta testing survey form, I shall be in touch during August or September

Part of the beta test will involve providing people with 3.5"/2.5" drive bay mounts, to ensure they work as intended

hqdefault.jpg

Watch demonstration of HDD Synth drive bay mounts

The 3.5" version has a space to fit an optional larger speaker, if you really want to have a loud HDD!

I'm also going to create a prototype ISA & PCI adapter card slot which will supply power to the card and provide physical controls out the back. Mainly because I really like having some physical controls! 😀

http://www.strifestreams.com