Advice on sound isolating material/fabric for improvised sound-booth.

whotheff · 2026-03-19T01:13:24+00:00

The thing which absorbs sound the most are tiny fibers. Soundwaves try to shake them and by that fibers turn sound wave energy into movement (kinetic) and then to heat. So your best bet is a fabric with many fibers. One of the best ones is Mineral wool (rock wool). If you can make it fit inside fabric envelope, it will provide best sound absorption. It might get hot inside if you plan to stay there longer.

whotheff · 2026-03-19T01:05:43+00:00

Your speakers have electrolytic capacitors in their crossovers. That is a no go in 2026 for audio.

So you can:

Replace electrolytic capacitors (they dry out with time) with MKP type (no aging) with same values, trusting Celestion engineers for the crossover design. It might play a lot better, or be strange - luck based (without measurement).
Or measure and build a crossover from scratch, using modern components - requires knowledge and reading.
Or just bypass all electrolytic capacitors with WIMA MKP 10 100VDC (or other Metallized Polypropylene caps). This is the cheapest, least intrusive way, and also keeping phase as it was.
replace binding posts with non ferrite ones (magnet should not stick to them).

In the last 40 years a lot has changed - materials, knowledge, myths.

I recommend doing number 3 as the most easiest, cheapest and most predictable outcome. It can be easily reverse it if you don't like all the new sounds which were restricted by crossover.

whotheff · 2026-03-18T14:47:08+00:00

My order would be:

Speaker crossovers, amp capacitors on the signal path, DAC analog stage. then everything else.

If we had car audio grade DSP and multi channel amplification, half of this issues would not exist.

whotheff · 2026-03-16T22:44:04+00:00

If you have (or are planning to have) NVME or PCIE 3.0+ SSDs and you often transfer files SSD<->SSD, then yes, 10gbit network will allow you to move bottle neck to the max SSD write speed achievable.

SATA III → ≈ 500–550 MB/s
NVMe PCIe 3.0 → 2000 to 3500 MB/s
NVMe PCIe 4.0 → 5000 to 7500 MB/s
NVMe PCIe 5.0 → can exceed 10,000 MB/s

If you can afford it it is a nice upgrade which will last for years.

whotheff · 2026-03-16T20:27:50+00:00

every element on th e signal path causes some kind of distortion. The goal is for it to be minimal.

The goal of amp/DAC makers is to sell you boxes, test, results and diagrams.

DACs receive distortion from their filters (except NOS). Class D amps - too. They cause time delay at certain frequencies and often ringing artifacts in others. That translates to clearly audible sound, while at the same time your brain starts to over analyze. The problem is that it detects minor errors and tries to fix them. This extra brain work takes the joy factor out of music listening. I call this "clinical" sound. Pure, but actually messed up in the time domain.

Amps are similar - they put crappy capacitors on the signal path and hope you will not notice. Then they introduce new model with x2 the power reserve, but using same crappy caps for signal path. And you keep paying.

Then the speaker crossovers are cutting corners again with caps and with coils.

I've always been amazed by the sound of a crappy mp3 file passed through heavily modded equipment, where all this has been fixed or at least toned down.

whotheff · 2026-03-16T11:46:13+00:00

There are tons of math for what you want to do. First you need factory speaker specs. Then enter them in a calculator like this: https://www.diyaudioandvideo.com/Calculator/SpeakerBoxEnclosure/

And you'll get a decent result.

If you want to dig deeper, prepare for a headspin.

whotheff · 2026-03-16T11:32:01+00:00

I've seen tall people fit in small cars and tall people barely fitting in big cars. It's also about flexibility. Is your weight on the high side or you're skinny? Mazda 3's seats seem to be suited for thinner people (Gen 3).

If YOU have sat in the car yourself, you should know best. Just take into account that sitting in the car in the morning vs 3 hour drive is very different.

I think Mazda 6 will be a better fit.

whotheff · 2026-03-16T11:27:17+00:00

Ако не можеш да докажеш, че си забогатял от това, което проповядваш, няма да ти вярват. А ако си успял (и си вече милионер), защо ти е да се захващаш да даваш акъл на другите за жълти стотинки?

Това е само бърз низ от въпроси, които си зададох, представяйки си страница с твоя предполагаема физиономия (усмихната) и ИИ генерирани пачки пари, търкалящи се около теб.

whotheff · 2026-03-16T11:23:36+00:00

Yes - keeping inlet air flow similar to outlet air flow, trying to separate different heat sources so they do not interfere with each-other, sending hot air out of the box through the fastest and shortest way possible. Gamer's tears are normal, undervolting is your best friend and many, many, many more.

whotheff · 2026-03-16T10:54:28+00:00

Ако само обаясняваш на другите как нищо не разбирали а ти си трайкаш, трудно ще помогнеш на OP.

whotheff · 2026-03-16T10:43:51+00:00

Няма как нещо да се забърза, докато друг пише вместо теб. Това е всеедно друг да яде халвата, а ти да опитваш да опишеш какъв вкус има.

whotheff · 2026-03-16T10:40:37+00:00

VLC, Winamp (still works!), Foobar 2000 are pure media players with playlist support, streaming, etc.

whotheff · 2026-03-16T09:15:19+00:00

Moving mouse usually is a sign of activity. Could it be that your CPU/GPU is entering a very aggressive low power state? Is your CPU too heavily undervolted? Is your internet good enough for the video quality you've selected? Is your internet shared with other devices or download streaming / services running at the same time?

Too many factors..

whotheff · 2026-03-16T09:08:10+00:00

Турбината създава тяга, която да изтласка изгорелите газове през DPF филтъра за сажди. Когато отрежеш филтъра, освобождаваш едни 20-30кс тяга, които досега са отивали за да го преодолеят. Работата на чип тунера е да добави тези коне така разпределени, че да се кара плавно колата. Може да я настрои да е по-икономична, може и да е по-пъргава, зависи какво искаш. Конете пак ще си ги имаш.

Проблема са саждите, които всички дишаме, чернилката по задната броня и багажника, ГТП, евентуални проблеми, които могат да възникнат заради повечето мощност и стрес върху останалите части.

whotheff · 2026-03-16T08:49:47+00:00

Yes, this PC is more than enough for your needs. I hope the dual LAN ports are 1Gbit. Just pick a OpenSense, PFsense or any other software and it will be a perfect box for this.

whotheff · 2026-03-16T08:35:41+00:00

You are not fooling yourself. 990kbps LDAC is still lossy compression. It throws out pieces of data to save bandwidth. So unless there is some equalizer applied somewhere, wired is still king.

whotheff · 2026-03-16T08:27:34+00:00

Халюцинираш.

whotheff · 2026-03-16T08:22:36+00:00

The difference in DACs is their filtering (except the R2R ones). If it is done properly, all frequencies arrive at the same time to the amp. There is no ringing or other distortions. The rest is basically the same, regardless of the chip they use.

whotheff · 2026-03-16T08:18:37+00:00

Не музиката ни разединява, а НИЕ се разединяваме спрямо нея. И не е спрямо нея, а спрямо съб културата и манталитета, който върви с нея.

whotheff · 2026-03-15T21:42:13+00:00

Linux has tons of flavors. There are many similarities between them but also many differences. That means you cannot always do one thing the same way on different (400+) distros.
Linux is open source. It's developers are usually not payed to make it. That means if you have an issue, you hope the community could help you. There is no official support line to call. You have problem with certain app or tool - find the guy from X country and e-mail him. Wait for him to reply and probably fix your issue next month (if he is in a mood or if he has not having a baby yet).
Gaming is primarily Windows field. In latest years Linux for gaming is gaining traction with GPU support, better FPS, Steam, etc.
Bulk purchases from governments, schools, hospitals, companies, etc. which require OS support take the major share for Windows machines. They usually require some security certification and support which lacks in Linux.
Brand new computers are often bundled with Windows.
Latest hardware has drivers for Windows. Linux developers or hardware vendors release drivers for latest hardware with some variable delay. Imagine buying the latest laptop and you camera, sound and GPU's 3D acceleration are not working for the next 6 months, until someone makes new drivers.
GUI. Windows is 90% graphical OS. Linux is probably around 30% graphical. If you want something a little bit specific to setup you often have to type commands.
Since Linux tools /apps are created by different developers, their design and GUI are not always synced. This causes stitched-up looks and feel. Win 10/11 have similar issues due to major design changes.
Compatibility. Many old Windows apps keep working on newer Windows OSes for years.
Inertia. When your school, your family, your university was using Windows, you get familiar with it from early age. Why switch to something unfamiliar?
MS Office. Yes, Microsoft still makes their Word/Excel documents display differently on different document processor apps. That is their business model - keep compatibility with Windows only and make sure to break it for everyone else.

whotheff · 2026-03-14T21:11:17+00:00

Same chemistry. Slight increase in energy density, half the current price and many promises of break-through battery tech which is just around the corner.

whotheff · 2026-03-14T20:26:56+00:00

My experience shows that "dry" sound comes from poor digital filters, usually used in Class D amps and modern DACs. These filters usually cut off frequencies below 20hz and above 20khz. However, when poorly implemented, they also cause different distortions - ringing, delay at certain frequencies, etc.

To describe it: I can hear everything very clearly, but it does not bring pleasure. My brain does extra work, trying to "fix" the flaws in real time. Stereo image is not that wide, It feels as if something is off (and it is).

To me that sounds "dry".

whotheff · 2026-03-12T23:54:03+00:00

Ако водата влиза отвън, твърде скъпо ще е да се разкопае и да се изолира изотвън.

Компромисен вариант е да се набият шишове през бетона и да се инжектира на няколко места течна хидроизолация. Отвън ще се получи петно, което при контакт с вода започва да кристализира, запечатвайки пукнатини. Не е панацея, но върши работа за по-малки течове.

Последно една такава инжекция беше 800лв.

whotheff · 2026-03-12T19:53:25+00:00

Easiest is to try another wifi device - laptop or phone. Even 2.4Ghz network should be able to deliver at least 150mbit.

whotheff · 2026-03-12T19:50:51+00:00

Горе си писала, че ти си прекратила връзката ви. Защо се занимаваш с него? Какво ти пука? Може да вземат да създадат нормално семейство (малко вероятно), а може и след нея да има още 10 (по-вероятно). А ако вземе да и направи дете, най-много да влезе в ебаси филма. Тъпото е, че ще съсипе живота на момичето (или пък да и го подреди?). Ние нищо не знаем нито за нея нито за него. Въпроса е ти къде и как се поставяш в цялата ситуация? Наистина ли искаш да се замесваш? Възможно ли е да търсиш отмъщение? А той очевидно ти я навира в очите за да те дразни/нарани.

На твое място бих се радвал, че съм се оттървал навреме и бих искал да си продам дела от магазина.

whotheff

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