Audio Category - Page 30 of 34 - CNX Software

May 8, 2015 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

MINIX NEO Z64W (Intel Atom Z3735F) mini PC gets HDMI Audio in Ubuntu

We’ve been able to run Ubuntu on Intel Atom Z3735F mini PCs, as well as other Linux distributions, for a while, but with an important caveat: HDMI audio would not work, so instead you had to use an external USB sound card to get any audio. Luckily the problem seems solved, as Linuxium has now released a script (audio-wifi-minix-neo-z64-release.sh) and relevant files that will patch your system to enable HDMI audio, and WiFI on MINIX NEO Z64W running Ubuntu. Ian Morrison (Liuxium) compiled a Linux kernel and the Wi-Fi driver, together with a modified DSDT (Differentiated System Description Table) table to fix an ACPI bug. He used John Pemberton’s Bay Trail Audio HDMI patch, as well as help from Paul Kendall for identifying the ACPI DSDT table bug, Bastien Nocera (hadess) for the wifi source code and DroidMote Server / Client for the wifi pointer. A quick demo shows WiFi […]

April 20, 2015April 20, 2015 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Rockchip RKNanoD is a Dual Core Cortex M3 MCU for IoT and Audio Applications

Rockchip is better known for their application processor like RK3188 or RK3288 found in tablets and mini PCs, but the company is also making lower power SoCs such as RKNanoC Cortex M3 micro-controller used in wireless audio applications, and more recently Rockchip demonstrated RKNanoD, a dual core Cortex M3 micro-controller for IoT and high-definition audio applications. Some key specifications and features of RKNanoD MCU: Cores ARM Cortex M3 @ 150 MHz with 64KB SRAM, 16KB RAM, 320KB iRAM, 256KB DRAM for system. ARM Cortex M3 @ 300 MHz with 128KB iRAM, 256 KB DRAM, and an audio H/W accelerator for compute tasks like audio decoding. Storage I/F – Flash, SDMMC, SDIO, SFC Display I/F – LCD, E-Ink Audio – 2x I2S, 24-bit / 192 KHz audio codec USB – USB 2.0 OTG Other I/Os – GPIO, 6x UART, 2x SPI, 3x I2C, 5x PWM, 8x SARADC 8x DMA, 2x Timers […]

April 11, 2015 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Open Hour Chameleon RK3288 TV Box Gets (Partial) DTS-HD and Dolby TrueHD HDMI Pass-through Support

People owning AV receivers capable of outputting 7.1 channels or more have had a hard time finding Android TV boxes that supports HD audio pass-through via HDMI. Many devices can pass through 5.1 codec like DTS or Dolby Digital (AC3 / E-AC3), but so far, none of the boxes I’ve tried could manage content with DTS-HD (MA / HR) and Dolby TrueHD with 8 channels properly. The one that came close was Zidoo X9 with support for Dolby TrueHD 5.1 and 7.1, but it downmixes 7.1 channels to 5.1 channels. So the only cost effective options to get proper 7.1 channel pass-through were Intel based mini PCs running Linux such as Asus Chromebox M004U or Intel NUCs. But recently, I’ve seen some progress. For example, yesterday Cloud Media released a new firmware for their Open Hour Chameleon media player based on Rockchip RK3288 processor. Their Android 4.4.2 firmware (version 1.0.23) […]

March 15, 2015March 17, 2015 by Jean-Luc Aufranc (CNXSoft) - 114 Comments

Giveaway Week – SoundMate WM201 Wireless Audio Streamer

All good things must come to an end, and this is the last day of Giveaway Week on CNX Software with Uyesee SoundMate WM201 wireless audio streamer that adds Wi-Fi connectivity to your speakers or old AV receiver, so that you can stream audio via EZMusic or a DLNA app in Android, iOS or, desktop computers. If you’ve ever used an EZCast dongle, the app looks just the same except it’s limited to audio streaming. I’ve tried it with an optical audio cable connected to the S/PDIF input of the device and Onkyo TX-NR636 AV receiver. It worked pretty well, as long as your device is in the same room, but if you move to another room, the connection become unreliable, and audio may cut from time to time. You can read SoundMate WM201 review for details. imply leave a comment below to enter the draw, with other rules as […]

February 20, 2015March 20, 2015 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

SoundMate WM201 Wi-Fi Music Streamer (EZMusic) Review

Last year I reviewed SoundMate M2 Wi-Fi audio streamer, and Uyesee has sent me a sample of their new SoundMate WM201 powered by Actions Semi AM8253, and based on EZCast app for audio calld EZMusic (EZCast Music). SoundMate WM201 Unboxing Pictures That’s the package for the device. The device comes with two audio cables, a micro USB to USB cable for power, and “SoundMate WiFi Music Streamer” user manual. Let’s have a closer look at the tiny box. Two LEDs are located on the front for power and connection, a micro SD slot can be found on the side, and the rear panel has most of the connection: micro USB port for power, reset pinhole, optical SPDIF, 3.5mm stereo jack, and USB 2.0 host for mass storage. SoundMate WM210 Teardown Take out of four sticky rubber pad on the bottom of the case, and loosen four screws to remove the […]

February 9, 2015May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Linux 3.19 Release – Main Changes, ARM and MIPS Architectures

Linus Torvalds released Linux Kernel 3.19 yesterday: So nothing all that exciting happened, and while I was tempted a couple of times to do an rc8, there really wasn’t any reason for it. Just as an example, Sasha Levin used KASan and found an interesting bug in paravirtualized spinlocks, but realistically it’s been around forever, and it’s not even clear that it can really ever trigger in practice. We’ll get it fixed, and mark it for stable, and tempting as it was, it wasn’t really a reason to delay 3.19. And the actual fixes that went in (see appended shortlog) were all fairly small, with the exception of some medium-sized infiniband changes that were all reverting code that just wasn’t ready. So it’s out there – go and get it. And as a result, the merge window for 3.20 is obviously also now open. Linus Linux 3.18 improved performance of […]

February 5, 2015February 5, 2015 by Jean-Luc Aufranc (CNXSoft) - 20 Comments

Onkyo TX-NR636 AV Receiver Setup and Audio Pass-through with OpenELEC / Kodi

Following up on my LG 42U820T 4K TV review, I’ll know checkout the second item purchased for my reviews thanks to the help of my readers, with Onkyo TX-NR636 7.2 channel AV receiver combined with Pioneer S-11 speaker set. As this is my first AV receiver, I still have a lot to learn, I can’t really comment on audio quality (except it sounds much better than my TV speakers, and is more powerful), so I won’t do a full review, but I’ll show some details about the receiver, explain how to it setup with speakers, show how to setup OpenELEC / Kodi for HDMI audio pass-through, and test it with various Dolby and DTS video files. Onkyo TX-NR636 Specifications But before all that, I’ll list some of the specifications of this cool AV receiver. Amplified Rated Output Power: 95 watts minimum continuous power per channel, 8 ohm loads, 2 channels driven […]

February 1, 2015October 5, 2021 by Jean-Luc Aufranc (CNXSoft) - 18 Comments

Connect Speakers to Any mini PCs with a $1 USB Sound Card

Last year, I made a poll to find out what kind of audio output people used with mini PCs, and one person commented “USB audio to av receiver”, but at the time I did not investigate. Recently somebody asked me for mini PCs with audio output for stereo speakers, and I recommended something like MINIX NEO X6 with a dedicated 3.5mm audio jack, but I’ve just discovered USB sound cards with stereo output and microphone input are incredibly cheap, even less than $1 shipped on Aliexpress, and just above $1 on Ebay. The features for the model above are listed as follows: Real USB Plug & Play Drive 2-channelsspeakers directly Support 3D positional sound and virtual 5.1 channels sound track Powered via USB port Digital Class-B power Amplifier inside Speaker Shifter – 5.1x earphone, 2 speaker virtual theater Software Value-added for Music: 27x Environmont Effects, 3x Environment sizes, 10-Band/Pre-set Equalizer […]