Fading Audio is ROUGH on CPUs

LaurieWired August 12, 2025
Video Thumbnail

About

No channel description available.

Video Description

Fading out audio is one of the most CPU-intensive tasks you can possibly do! When numbers get *really* small, the number of CPU operations can explode 100-fold. Both x86 and ARM have special CPU instructions just to handle it. But why? In this video, we'll explore the IEEE 754 (floating point) standard, the fight between Intel and DEC, and I'll write some demonstration C++ code that illustrates this problem even today! --- Timestamps: 00:00 Subnormal Arithmetic Cost 02:25 An Accuracy Debate... 06:28 Too small to calculate? 08:56 IEEE 754 Standard 10:17 Digital Audio Workstation Conundrum 14:18 A Massive CPU Spike --- Follow LaurieWired on Social Media: ►https://linktr.ee/lauriewired --- Papers Cited: "An Interview with the Old Man of Floating-Point": https://people.eecs.berkeley.edu/~wkahan/ieee754status/754story.html Pentium 4 and Xeon Processor Optimization manual (Chapter 5, “Optimizing for SIMD Floating-point"): https://kib.kiev.ua/x86docs/Intel/Intel-OptimGuide/248966-004.pdf --- Short demo code: https://gist.github.com/LaurieWired/3f8be4648b3e627e3fcd5607d83b405f

Silence CPU Noise Today

AI-recommended products based on this video

Loading...
Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

(169)
$61.90
FREE delivery Sun, Aug 24
100+ bought in past month
Loading...
MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

(21)
$89.99$85.49
FREE delivery Sat, Jan 3
Loading...
MSI MAG Coreliquid A13 360 - AIO ARGB CPU Liquid Cooler - 360mm Radiator - LGA 1851 Ready - Triple 120mm ARGB PWM Fans, Black

MSI MAG Coreliquid A13 360 - AIO ARGB CPU Liquid Cooler - 360mm Radiator - LGA 1851 Ready - Triple 120mm ARGB PWM Fans, Black

(174)
$99.99
FREE delivery Sat, Jan 3
50+ bought in past month
Loading...
BOSGAME P5 Pro Mini PC, AMD Ryzen 7 6800H Mini Gaming PC, 32GB DDR5 512GB SSD Desktops Computer, Quad Display, Dual USB 4.0 & HDMI, 2.5G RJ45 LAN, Wi-Fi 6E, BT 5.2

BOSGAME P5 Pro Mini PC, AMD Ryzen 7 6800H Mini Gaming PC, 32GB DDR5 512GB SSD Desktops Computer, Quad Display, Dual USB 4.0 & HDMI, 2.5G RJ45 LAN, Wi-Fi 6E, BT 5.2

(230)
$649.99
FREE delivery Sat, Jan 3
Loading...
GEEKOM A8 Max Mini PC (Ultimate Performance), AMD Ryzen 7 8745HS (Advanced Computing), Dual LAN Mini Desktop, 16GB DDR5 RAM & 1TB SSD, Radeon 780M Graphics, Windows 11 Pro, USB4, 8K Support

GEEKOM A8 Max Mini PC (Ultimate Performance), AMD Ryzen 7 8745HS (Advanced Computing), Dual LAN Mini Desktop, 16GB DDR5 RAM & 1TB SSD, Radeon 780M Graphics, Windows 11 Pro, USB4, 8K Support

(108)
$949.00
FREE delivery Sat, Jan 3
Loading...
GMKtec Mini PC Gaming, AMD Ryzen 7 PRO 6850U (8C/16T 4.70Ghz) Radeon 680M Desktop Computer Dual NIC LAN 2.5G, 16GB DDR5 +512GB SSD, Dual USB4, HDMI 2.1, USB-C M7 Ultra Global Recycled Standard

GMKtec Mini PC Gaming, AMD Ryzen 7 PRO 6850U (8C/16T 4.70Ghz) Radeon 680M Desktop Computer Dual NIC LAN 2.5G, 16GB DDR5 +512GB SSD, Dual USB4, HDMI 2.1, USB-C M7 Ultra Global Recycled Standard

(218)
$819.99
FREE delivery Sat, Jan 3
Loading...
GMKtec Mini PC Gaming, AMD Ryzen 7 PRO 6850U (8C/16T 4.70Ghz) Radeon 680M Desktop Computer Dual NIC LAN 2.5G, 32GB DDR5 +1TB SSD, Dual USB4, HDMI 2.1, USB-C M7 Ultra Global Recycled Standard

GMKtec Mini PC Gaming, AMD Ryzen 7 PRO 6850U (8C/16T 4.70Ghz) Radeon 680M Desktop Computer Dual NIC LAN 2.5G, 32GB DDR5 +1TB SSD, Dual USB4, HDMI 2.1, USB-C M7 Ultra Global Recycled Standard

(941)
$929.99
FREE delivery Sat, Jan 3
Loading...
Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

(169)
$61.90
FREE delivery Sun, Aug 24
100+ bought in past month
Loading...
MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

(21)
$89.99$85.49
FREE delivery Sat, Jan 3
Loading...
MSI MAG Coreliquid A13 360 - AIO ARGB CPU Liquid Cooler - 360mm Radiator - LGA 1851 Ready - Triple 120mm ARGB PWM Fans, Black

MSI MAG Coreliquid A13 360 - AIO ARGB CPU Liquid Cooler - 360mm Radiator - LGA 1851 Ready - Triple 120mm ARGB PWM Fans, Black

(174)
$99.99
FREE delivery Sat, Jan 3
50+ bought in past month
Loading...
MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

(21)
$89.99$85.49
FREE delivery Sat, Jan 3
Loading...
Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

(169)
$61.90
FREE delivery Sun, Aug 24
100+ bought in past month
Loading...
MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

(21)
$89.99$85.49
FREE delivery Sat, Jan 3
Loading...
MSI MAG Coreliquid A13 360 - AIO ARGB CPU Liquid Cooler - 360mm Radiator - LGA 1851 Ready - Triple 120mm ARGB PWM Fans, Black

MSI MAG Coreliquid A13 360 - AIO ARGB CPU Liquid Cooler - 360mm Radiator - LGA 1851 Ready - Triple 120mm ARGB PWM Fans, Black

(174)
$99.99
FREE delivery Sat, Jan 3
50+ bought in past month
Loading...
CORSAIR iCUE Link XC7 RGB Elite CPU Water Block - Transparent Flow Chamber - 24 RGB LEDs - Fits Intel® LGA 1700, AMD® AM5 and Older - White

CORSAIR iCUE Link XC7 RGB Elite CPU Water Block - Transparent Flow Chamber - 24 RGB LEDs - Fits Intel® LGA 1700, AMD® AM5 and Older - White

(56)
$149.99$125.33
FREE delivery Sun, Aug 24
Loading...
CORSAIR Hydro X Series iCUE Link XH405i Custom Cooling Kit – Hardline Water Cooling Loop – XC7 Elite CPU Water Block – XD5 Elite D5 Pump Res – XR5 360mm Radiator – 3X QX120 RGB Fans

CORSAIR Hydro X Series iCUE Link XH405i Custom Cooling Kit – Hardline Water Cooling Loop – XC7 Elite CPU Water Block – XD5 Elite D5 Pump Res – XR5 360mm Radiator – 3X QX120 RGB Fans

(235)
$879.99
FREE delivery Sun, Aug 24
Loading...
Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

(169)
$61.90
FREE delivery Sun, Aug 24
100+ bought in past month
Loading...
MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

(21)
$89.99$85.49
FREE delivery Sat, Jan 3
Loading...
MSI MAG Coreliquid A13 360 - AIO ARGB CPU Liquid Cooler - 360mm Radiator - LGA 1851 Ready - Triple 120mm ARGB PWM Fans, Black

MSI MAG Coreliquid A13 360 - AIO ARGB CPU Liquid Cooler - 360mm Radiator - LGA 1851 Ready - Triple 120mm ARGB PWM Fans, Black

(174)
$99.99
FREE delivery Sat, Jan 3
50+ bought in past month
Loading...
Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

(169)
$61.90
FREE delivery Sun, Aug 24
100+ bought in past month
Loading...
MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

(21)
$89.99$85.49
FREE delivery Sat, Jan 3
Loading...
MSI MAG Coreliquid A13 360 - AIO ARGB CPU Liquid Cooler - 360mm Radiator - LGA 1851 Ready - Triple 120mm ARGB PWM Fans, Black

MSI MAG Coreliquid A13 360 - AIO ARGB CPU Liquid Cooler - 360mm Radiator - LGA 1851 Ready - Triple 120mm ARGB PWM Fans, Black

(174)
$99.99
FREE delivery Sat, Jan 3
50+ bought in past month
Loading...
Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

(169)
$61.90
FREE delivery Sun, Aug 24
100+ bought in past month
Loading...
MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

MSI MAG CORELIQUID A15 240 - AIO ARGB CPU Liquid Cooler - 240mm Radiator - AM5, LGA 1851 Ready - Dual 120mm ARGB PWM Fans, Black

(21)
$89.99$85.49
FREE delivery Sat, Jan 3
Loading...
MSI MAG Coreliquid A13 360 - AIO ARGB CPU Liquid Cooler - 360mm Radiator - LGA 1851 Ready - Triple 120mm ARGB PWM Fans, Black

MSI MAG Coreliquid A13 360 - AIO ARGB CPU Liquid Cooler - 360mm Radiator - LGA 1851 Ready - Triple 120mm ARGB PWM Fans, Black

(174)
$99.99
FREE delivery Sat, Jan 3
50+ bought in past month