Author Archives: lui_gough

About lui_gough

I'm a bit of a nut for electronics, computing, photography, radio, satellite and other technical hobbies. Click for more about me!

Video Codec Round-Up 2023 – Part 8: h264_nvenc (H.264 Nvidia NVENC)

If batting for team blue isn’t your thing, how about team green? Aside from dedicated fixed-function or FPGA-based encoder accelerator products, the first time I really had exposure to hardware encoders was courtesy of Nvidia’s CUDA general-purpose GPU framework and … Continue reading

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Video Codec Round-Up 2023 – Part 7: hevc_qsv (H.265 Intel Quick Sync Video)

For Intel, hardware encoding of H.265 is also possible, if you have a Skylake (6th-Generation) or newer platform. Similarly to the previous, I opted to use intelligent constant quality (ICQ) mode with a very similar command line: -c:v hevc_qsv -global_quality … Continue reading

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Video Codec Round-Up 2023 – Part 6: h264_qsv (H.264 Intel Quick Sync Video)

What comes after VP9? If you answered AV1, you’d be correct, but unfortunately that’s not what we’ll be looking at today because the encodes for that are still in progress, but soon to finish. Afterward, there’ll still need to be … Continue reading

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Video Codec Round-Up 2023 – Part 5: libvpx-vp9 (VP9)

While the previous post looking at VP8 is more useful as a baseline to compare against, the VP9 codec is actually quite relevant and contemporary. Spearheaded by Google’s internal development and acquisition of On2 Technologies’ portfolio of VPx codecs, this … Continue reading

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Video Codec Round-Up 2023 – Part 4: libvpx (VP8)

For the most part, the VPx-series of codecs never really were on my radar. I recall VP3 Theora’s usage in OGV videos, which persists on Wikipedia today, but aside from that, I’ve always had the impression that VPx codecs were … Continue reading

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Video Codec Round-Up 2023 – Part 3: libx265 (MPEG-H Part 2/H.265/HEVC)

I still recall the time when I first heard about H.265, the spiritual successor to H.264. It was touted as offering 50% improved compression efficiency (again) and was slated to replace H.264 eventually. However, it seemed that soon after, concerns … Continue reading

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Video Codec Round-Up 2023 – Part 2: libx264 (MPEG-4 Part 10/H.264/AVC)

We now arrive at what would be considered the modern “baseline” video codec, MPEG-4 Part 10, H.264 or Advanced Video Coding. This codec is practically universally supported by modern operating systems, browsers and even hardware acceleration. It is often found … Continue reading

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Video Codec Round-Up 2023 – Part 1: libxvid (MPEG-4 Part 2/H.263/ASP)

This video codec round-up begins with our low anchor, MPEG-4 Part 2 also known as H.263 Advanced Simple Profile. This was the de-facto compression method that ushered in an era of internet movie piracy under various guises including DivX, Xvid … Continue reading

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Video Codec Round-Up 2023 – Part 0: Motivation, Methodology, Limitations

If you would ask me what I find most impressive growing up, it would be watching the proliferation of multimedia on computers and the advances in video encoding. From my younger years, I recall video compression being explained to me … Continue reading

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RoadTest Review: ROHM Semiconductor BD9G500EFJ-EVK-001 Buck Converter Evaluation Kit

It’s been a busy few months … and it looks like it will keep on being busy. One of the things keeping me busy? This evaluation board from ROHM Semiconductor. This board evaluates their BD9G500(U)EFJ-LA buck converter integrated circuit, which … Continue reading

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Analysis: Free Calls to Santa (#HOHOHO) 2023 – Now with AI!

UPDATE: AI service ended on Christmas Day 2023, leaving a pre-recorded message only. It has become a yearly tradition at Telstra, it would seem, to offer free calls to Santa from payphones around the festive season by dialling #464646 or … Continue reading

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RoadTest Review: Toshiba Thermoflagger TCTH021AE

I’ve been quite busy with things over the weekend that I’ve not had much time for any blogging, perhaps with minor updates to the recent Optus outage posting. The technical details behind how things work are often overlooked in reporting. … Continue reading

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Breaking: Optus Nationwide Outage (08/11/2023)

It’s not a good morning this morning as I woke up at 5:41am to see this: Emergency calls only. I was afraid my SIM was ported out from underneath me, so I reboot. No dice – “temporarily unavailable”. Voice over … Continue reading

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Review: WD_BLACK SN770 2TB NVMe SSD Game Drive (WDS200T3X0E) @PCIe3.0x4

When something fails, my instinct is to replace it with twice as much. Previously, it was goodbye Fanxiang S501, hello Lexar NM610 PRO, but that was only half of the equation. The other half came courtesy of an OzBargain posting … Continue reading

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Teardown: T Tersely USB-C OTG Adapter with PD Charging Pass-Through

I’ve been rather interested in how USB-C “does its thing” when it comes with USB-C PD and DRD (dual-role devices). Being rather late to the USB-CC party, I’ve not had any experience with how it works at a low level, … Continue reading

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Salvage, Teardown: LG RC689D Digital & Analog DVD Recorder/VCR Combo

Continuing on with the stuff I’ve salvaged from an ex-lecture-theatre rack setup is this rather exciting piece of AV equipment that comes from a very short time interval when we were in-between analog and digital, tape and disc, individual cables, … Continue reading

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Radiofax Update: Farewell ZKLF / ZLG2 (New Zealand MetService)

I’ll begin this week’s blog-fest with a rather sad post. In prior years, I spent quite a bit of time adventuring around the HF/shortwave bands looking to preserve various things in the knowledge that it would, one day, disappear. In … Continue reading

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Review: Lexar NM610 PRO M.2 2280 PCIe Gen3x4 NVMe SSD (1TB)

UPDATE 1st Jan 2024: Caution is advised regarding the NM610 PRO, as the one I have seems to have behaviour that points to a potential data retention issue after being left unpowered for a few months, with data read speeds … Continue reading

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Review, Teardown: Inkbird PTH-9CW Wi-Fi Carbon Dioxide Detector

Indoor air quality seems to be something that is receiving more and more attention, especially during the COVID-19 pandemic when air circulation became a key concern in avoiding transmission and previously due to issues such as sick building syndrome. While … Continue reading

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Tested, Project: USB-C PD Trigger/Decoy Boards (YZX Studio ZYPDS, ZY12PDN)

This weekend, I’ve been playing with some USB-C PD trigger (or decoy) boards again, as my order from China has finally arrived. YZX Studio ZY12PDN (again!) If this particular name and model sounds familiar, that’s because I’ve looked at them … Continue reading

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Salvage, Teardown, Reverse Eng: ME Design PC2-1 Two Channel Power Controller

In this post, I’m back to examine some of the items in my salvage from a rack system that formerly ran a lecture theatre. This post will be looking at a ME Design Two-Channel Power Controller which was used to … Continue reading

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RoadTest Review: Tektronix 2-series MSO – A Serious Go-Anywhere Oscilloscope?

I’ve been a very busy person for the past few months. There’s been so much going on between work, hobby and various crises that I’ve even found myself so sleep deprived as to fall asleep on the bus and miss … Continue reading

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PSA: SSDs with YMTC Flash Prone to Failure? Check Your SSDs!

This is a bit of an out-of-cycle update as the bargain-hunting season starts to ramp up and flash memory prices seem to have bottomed out, people may be on the lookout for SSDs. I am certainly no stranger to a … Continue reading

Posted in Computing, Flash Memory, Opinion | Tagged , , , , , , , | 43 Comments

Review: Dell 100W USB-C AC Adapter (HA100PM220 DPN:0JC22F)

Having reviewed a Lenovo USB-C AC Adapter, I’ve been fortunate that my Dell work laptop has recently been replaced and it came with a spare USB-C AC adapter. As a result, now I have another OEM power adapter to compare … Continue reading

Posted in Computing, Electronics | Tagged , , , , | 1 Comment

Review: Lenovo USB-C 95W AC Adapter (ADLX95YLC3A PN:GX20Z46233 MPN:SA10R16876 FRU:02DL130)

For those in the know, they know better than to chase cheap GaN chargers that promise the world but often under-deliver. But what about cheaper non-GaN chargers from reputable brands? Just recently, Lenovo Education store was selling a USB-C 95W … Continue reading

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Salvage: Australian Monitor AV2.2P 2x100W Amplifier & AM60CS Premium Ceiling Speaker

It seems to have been ages since the last time I managed to put up a salvage post. I’m not sure if it’s just because I’ve gotten so busy that I’ve become selective as to what I am willing to … Continue reading

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Quick Review: BMAX MaxPad I11 Plus (10.4″/T616/8+128GB/13+5MP/Android 12) Tablet (M3T6)

I’m not one to splurge on mobile devices and generally make a point of purchasing them relatively infrequently. That being said, a confluence of circumstances recently resulted in me needing to purchase an inexpensive tablet and encountering a discount on … Continue reading

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Review, Teardown: Asometech 67W USB-A+C GaN Charger (CH021)

Now that USB-C PD charging is relatively universal while devices rarely ship with their own charger included, the market for aftermarket chargers has grown and it seems that anything with a compact size and GaN in the product name is … Continue reading

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Quick Review, Teardown: Veektomx VT103 10000mAh 38.5Wh Power Bank

It seems that sometimes, power bank deals come rapid-fire on OzBargain, so today I’ll be looking at another impulse purchase. This one is a Veektomx VT103 10000mAh (38.5Wh) power bank that claims to be one of the more compact and … Continue reading

Posted in Electronics, Tablet | Tagged , , , , , , , | 9 Comments

Quick Review: Iniu MegaPower Slim 10500mAh 22.5W Power Bank BI-B6

I’ve tested an Iniu power bank before as part of the review challenge, but imagine my surprise when a smaller 10500mAh 22.5W version turned up on Amazon for AU$15.19 on a promotion. It seems that OzBargain-ing is a dangerous habit, … Continue reading

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