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Post by Slinger on Jun 24, 2019 11:54:23 GMT
...has arrived. www.raspberrypi.org/products/raspberry-pi-4-model-b/Here’s a full list of the Raspberry Pi 4’s improvements over its predecessor, the Raspberry Pi 3 B+: - Quad-core 1.5GHz Broadcom CPU, up from 1.4GHz in the previous model.
- 500MHz VideoCore VI GPU, up from 400MHz previously.
- A USB Type-C port for power, rather than Micro USB.
- Two Micro HDMI ports which can power two 4K monitors at 30fps, or a single 4K monitor at 60fps alongside a 1080p display.
- Two USB 3 ports and two USB 2 ports, up from four USB 2 ports.
- A Gigabit Ethernet port which is no longer throttled by a USB interface.
- Bluetooth 5.0 rather than 4.1.
- Dual-band 802.11ac Wi-Fi.
- A microSD storage card with a theoretical maximum transfer rate of 50 Mbps, up from 25 Mbps.
- A 40 pin GPIO connector with support for three more interfaces; I2C, SPI, and UART.
- Power-over-Ethernet (requires additional Raspberry Pi PoE HAT)
The Raspberry Pi 4 is available starting today with either 1GB, 2GB, or 4GB of RAM for £34, £44, and £54, respectively. These upgrades mean that the Raspberry Pi 4 is usable as a budget desktop PC replacement if you opt for its most expensive 4GB model. Tom’s Hardware’s review notes that the hardware is able to handle many everyday tasks such as web browsing with up to 15 Chromium tabs, light image editing using GIMP, and document and spreadsheet work using Libre Office. Unsurprisingly, the sub-$100 miniature PC has its limits. It reportedly struggles with full screen video playback from YouTube for example, even if you turn down the resolution to 480p. MORE
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Post by MartinT on Jun 24, 2019 11:57:21 GMT
- A Gigabit Ethernet port which is no longer throttled by a USB interface.
Yay - that's the best feature for further improving sound quality. I'll watch the Volumio and Allo forums for compatibility issues. It'll be worth upgrading the Pi board at some point.
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Post by mikeyb on Jun 24, 2019 12:12:03 GMT
The YouTube issue is strange because earlier models can easily do 1080p streaming when you install Kodi or Plex on them.
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Post by Pinch on Jun 24, 2019 12:19:06 GMT
Nice upgrade! I'll definitely be getting one - I'm currently running the previous iteration as a music server and it does the job well enough, but does chug on some tasks.
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Post by Slinger on Jun 24, 2019 12:51:49 GMT
The previous model was also capable of this...
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Post by MartinT on Jun 24, 2019 12:54:53 GMT
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Post by Slinger on Jun 24, 2019 19:06:15 GMT
Interestingly, the "old" psu for the Pi 3 was 5.1v 2.5A but the psu for the new Pi 4 is 5.1v 3A
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Post by MartinT on Jun 24, 2019 20:51:59 GMT
Higher clocking CPU & GPU, faster ethernet and some other stuff will do that for current draw.
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alp
Rank: Trio
Posts: 161
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Post by alp on Jun 24, 2019 21:16:46 GMT
From what I have read, it draws about 17% more than the 3B+.
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Post by nrg on Jun 25, 2019 6:48:16 GMT
The real benefit of separating the USB bus from the Ethernet bus is that it’s now a viable device to use as a NAS, especially as two ports are USB 3.0
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Post by Slinger on Jun 27, 2019 20:46:11 GMT
I had to laugh. There's one offer of a Raspberry Pi 4 MODEL B, 2GB (2GB) on Amazon. The seller is Raspberry Pi, and the price quoted is £53.75 & FREE delivery. It's got a single, one-star, review, and that review simply says " The recommended price for the RP4 with 2Gb Ram is £44" That's them told then. And yes, I did click the button to say that I found the review useful because the reviewer is dead right.
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Post by MartinT on Jun 27, 2019 21:01:32 GMT
if you use Volumio please wait before buying a Pi 4.
Michelangelo is working on a compatible build.
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Post by Slinger on Jun 27, 2019 21:09:10 GMT
if you use Volumio please wait before buying a Pi 4. Michelangelo is working on a compatible build. I had already decided that I wouldn't buy one before there is an announcement from Michelangelo. Even then I'll wait through a few "versions" before deciding whether it's actually worthwhile upgrading. I did think it rather odd though, that there have been a couple of queries in the Volumio forum but not a single word in reply.
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Post by MartinT on Jun 28, 2019 6:00:50 GMT
Michelangelo did reply that he is working on it, but people don't read through the threads and keep making new ones about the Pi 4.
Forums!
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Post by MikeMusic on Jun 28, 2019 10:17:04 GMT
Michelangelo did reply that he is working on it, but people don't read through the threads and keep making new ones about the Pi 4. Forums! Amen to that. The boss told me about one she brushed against, talking about cycling - of which she knows a bit. Some unpleasant, highly opinionated and WRONG opinions Gits not only on Hifi forums
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Post by Slinger on Jun 29, 2019 14:56:54 GMT
Michelangelo did reply that he is working on it, but people don't read through the threads and keep making new ones about the Pi 4. Forums! I've just asked Michelangelo this... ...because I got to wondering, if, as I'm currently throttling the Pi 3 Model B, could the only difference be the need to throttle the Pi 4 even more? HDMI is disabled, in fact anything I could find that is "video-related" is disabled. I can't see a use for extra ram. I don't currently get any (wired) network bottlenecks. I'm not using USB 2, so why would I need USB 3? You see where I'm going with this, Martin?
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Post by MartinT on Jun 29, 2019 18:03:07 GMT
Yes I do, Paul, and I'm similarly thinking that it may not give a sonic improvement. The only advantage I see is the superior ethernet interface.
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Post by MartinT on Nov 29, 2019 12:44:43 GMT
This has absolutely nothing to do with Hi-Fi, but I thought you might be interested in our library self-service kiosk built using a Pi 4 bolted onto the back of a monitor. Students can lookup books and publications, not just stocked in our library but anything published. They can also check-out and check-in book loans. The software is Oliver in kiosk mode using the Pi's Debian browser. It works really well and is fast!
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Post by Slinger on Nov 29, 2019 14:16:46 GMT
Wow! That's actually very impressive, Martin.
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alp
Rank: Trio
Posts: 161
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Post by alp on Dec 6, 2019 19:09:34 GMT
I replaced the Oyaide USB cable on my RPI4 with an Ifi Silencer->Pangea USB cable. This made quite a difference on it was hard to tell the difference in A-B comparison with my RPI3/Digione (even with a 1.5m SPD/IF cable), so I was very pleased with the outcome and was looking forward to the reclocker I had ordered arriving.
My Oehlbach reclocker arrived earlier this week and has made a further improvement, putting the RPI4/USB well ahead of the RPI3/DigiOne (now at a significantly higher cost), although it has taken me some time to find the settings in the SEG DAC and Picoreplayer to remove some harshness I heard. Also, I had to reinstall Picoreplayer as the SD card was corrupted some how along the way, which meant it would not connect to the USB when I rebooted - it now works fine.
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