#linux software defined radio

[skywavelinux]

Skywave Linux v5.3 is available for download! It is a self-contained live Linux operating for shortwave listening. Connect easily and stream from internet based SDR sites. The picture is from a nice night enjoying CBC Radio 1, picked up on a receiver in Newfoundland, Canada.

Get the iso image, burn it to a USB stick, boot the system and have fun. Shut down and unplug the USB, your PC never knew it was running a live Linux system…

[euspyshopuk]

Digital Radio Spy

Digital Radio Spy: The Ultimate Guide to Staying Tuned In

What is Digital Radio Spying?

Using specialized hardware and software to record and decode signals from digital radio transmissions is known as “digital radio espionage.” Digital radio uses complicated encoding systems that call for more advanced equipment, in contrast to traditional radio, where the signal is frequently analog and reasonably simple to decode with a basic receiver.

This hobby or practice is widely used by:

Amateur radio enthusiasts: who enjoy exploring and listening to different frequencies.

Security researchers: testing wireless systems for vulnerabilities.

Aviation fans: listening to air traffic control (ATC) communications.

News agencies: to monitor emergency services and breaking events.

The Evolution of Radio Technology

Before we dive into the tools of digital radio spying, let’s take a brief look at how radio technology has evolved:

AM/FM Radio: Amplitude modulation (AM) and frequency modulation (FM) were the main ways to transmit audio signals over the airways for many years. These technologies have long been a part of radios found in homes, cars, and portable electronics.

Digital Radio: Digital radio emerged as a result of technological advancements, providing improved sound quality, increased content availability, and data transmission capabilities (such as text, photos, and more).

SDR (Software-Defined Radio): This is the application of digital radio espionage. SDR offers greater flexibility and usefulness by using software to tune into frequencies and decode digital signals rather than relying on conventional hardware receivers.

How Does Digital Radio Spy Work?

SDR technology is the foundation of digital radio espionage. You attach a software platform to hardware intended for capturing radio signals in place of a physical radio receiver. After then, the software can be configured to detect a large spectrum of frequencies, interpret the signal, and display it in a format that is useful.

Here’s a basic breakdown of the setup:

SDR Hardware: You may record radio waves with this gadget, which you can link to your phone, tablet, or computer. RTL-SDR dongles, HackRF, or more sophisticated SDR receivers for experts are common choices.

SDR Software: You’ll need software to decode and interpret the signals. Some of the most popular programs for digital radio spying include:

SDR (SDRSharp): A highly popular software for Windows that supports RTL-SDR and other SDR hardware.

Gqrx: A widely-used SDR application for Linux and macOS.

CubicSDR: Cross-platform SDR software with a simple and intuitive interface.

Antennas: A single SDR device is insufficient. To pick up the precise frequencies you want, you’ll need the right kind of antenna. Different antennas can be needed depending on if you’re interested in UHF, VHF, or other bands.

Decoders: Decoders are required in order to decode digital signals, which can include encrypted data, digital voice, or digital television signals. Tools like DSD+ can aid in decoding digital voice, but other applications may be necessary for more specialized forms.

Popular Uses of Digital Radio Spying

Digital radio spying serves multiple purposes, depending on the type of signal being captured. Here are some of the most common uses:

1. Monitoring Air Traffic Control (ATC)

Digital radio eavesdropping is a tool used by aviation enthusiasts to listen in on pilot-to-air traffic controller interactions. Even while this is quite lawful in many regions of the world, it’s crucial to confirm your local laws.

2. Tracking Maritime Communications

SDR can be used to intercept and decode signals from ships and marine communications, including emergency broadcasts, in a manner similar to ATC monitoring.

3. Decoding Weather Satellites

One exciting application is decoding messages from weather satellites. You can directly obtain photos and meteorological information from satellites orbiting the Earth by intercepting these transmissions.

4. Amateur Radio Listening

A lot of digital radio spies also listen in on amateur radio broadcasters on different frequencies. Listening to global HAM radio enthusiasts is possible with SDR.

5. Emergency Services Monitoring

Emergency services continue to use analog or digital transmissions in some areas. In the event that these messages are not encrypted, digital radio spies could be able to hear them. However, it is prohibited in many jurisdictions to listen to encrypted emergency services.

Ethical Considerations

While there are many interesting potential for digital radio espionage, it’s crucial to keep in mind that there are important ethical and legal considerations. Understanding the laws governing radio interception in your nation is crucial. It may occasionally be unlawful to listen to specific frequencies, such as those utilized by the military, police enforcement, or encrypted services.

Ethical digital radio spying means respecting these boundaries:

Do not intercept encrypted signals unless authorized.

Avoid using the information gathered for illegal purposes.

Respect privacy laws and regulations, especially when dealing with personal or sensitive data.

The Legal Landscape of Digital Radio Spying

The legalities surrounding digital radio spying vary by country. Here are some general guidelines:

In the United States, Radio transmissions are governed by the FCC, and it is illegal to intercept some messages without authorization, particularly those that are encrypted. It is, however, usually acceptable to tune in to open, unencrypted broadcasts such as amateur radio or ATC.

In the United Kingdom, Ofcom oversees radio communications, and it is illegal to listen to any broadcast that you are not authorized to hear, including emergency services, private business communications, and encrypted transmissions.

In Australia, the Australian Communications and Media Authority (ACMA) regulates radio communications, and similar rules apply. However, amateur radio and weather satellites are typically open to interception.

Before starting any digital radio spying activities, always research the specific legalities in your country to ensure you’re complying with the law.

Getting Started with Digital Radio Spy

If you’re eager to dive into the world of digital radio spying, here’s a basic list of things you’ll need to get started:

An SDR Receiver: The most accessible and budget-friendly option is an RTL-SDR dongle. For more advanced users, devices like the HackRF or Airspy offer higher performance.

Software: Download SDR# or CubicSDR to get started. These programs allow you to tune into frequencies and decode signals.

Antennas: Depending on your focus, you may need different types of antennas for UHF, VHF, or HF bands.

Decoding Software: If you’re capturing digital signals, you’ll likely need additional software like DSD+ to decode digital voice or satellite data.

Patience and Experimentation: Digital radio spying involves a bit of trial and error. Start by exploring publicly available frequencies, and gradually work your way toward more complex signals.

Future Trends in Digital Radio Spy

The future of digital radio spying looks promising as technology continues to advance. We can expect:

Improved SDR hardware: With higher sensitivity and greater frequency range, future devices will allow for even more in-depth signal analysis.

More decoding tools: As digital radio formats evolve, so will the tools designed to decode them, making it easier for enthusiasts to capture and interpret signals.

Integration with AI: Artificial intelligence could play a role in analyzing and interpreting large volumes of intercepted data, automating some of the more complex aspects of digital radio spying.

Conclusion

Digital radio spying is both an engaging pastime and an effective tool for experts, researchers, and enthusiasts. You may access a world of secret signals using SDR technology, including air traffic control communications and weather satellite signals. But it’s crucial that you approach this activity knowing what the ethical and legal requirements are in your area.

Article Source :- https://medium.com/@EuspyshopUK/digital-radio-spy-0e904d55ff92

[jayakody2000lk]

RDS Data Extraction with RFtap and Wireshark

RDS (Radio Data System) is a communication protocol standard used for embedding small amounts of digital information in traditional FM radio broadcasts. It enables radio stations to transmit data such as station identification, program information, and traffic updates. 

To capture and decode RDS data, one method involves using a Software Defined Radio (SDR) along with GNU Radio and RFtap. GNU Radio provides a framework for creating software radios, while RFtap acts as a bridge between GNU Radio and conventional network monitoring and packet analysis tools like Wireshark.

Unfortunately, as of the time of writing, RFtap is no longer being maintained and does not work with the latest version of GNU Radio (version 3.10.10). This post offers guidelines for rebuild and using RFtap with the new GNU Radio release.

This post assumes that the reader has access to DVB-T dongles based on the Realtek RTL2832U and a PC running Ubuntu or Debian Linux. For this, I used an RTL dongle with Rafael Micro R820T tuner and Ubuntu 24.04 LTS release.

As the first step install the following GNU Radio build dependencies into the OS:

sudo apt-get install cmake libboost-all-dev \ liblog4cpp5-dev qtcreator qtbase5-dev \ qt5-qmake python3-cheetah python3-numpy \ python3-pygtk python3-gi python3-gi-cairo \ gir1.2-gtk-4.0

sudo apt install git g++ libgmp-dev swig \ python3-mako python3-sphinx python3-lxml \ doxygen libfftw3-dev libsdl1.2-dev \ libgsl-dev libqwt-qt5-dev libqt5opengl5-dev \ python3-pyqt5 liblog4cpp5-dev libzmq3-dev \ python3-yaml python3-click \ python3-click-plugins python3-zmq python3-scipy \ libcodec2-dev libgsm1-dev libusb-1.0-0 \ libusb-1.0-0-dev libudev-dev \ python3-setuptools

sudo apt install pybind11-dev python3-matplotlib \ libsndfile1-dev libsoapysdr-dev soapysdr-tools \ python3-pygccxml python3-pyqtgraph

sudo apt install libiio-dev libad9361-dev \ libspdlog-dev python3-packaging python3-jsonschema \ python3-qtpy

sudo apt remove swig

Next, clone and build Volk (Vector-Optimized Library of Kernels)

mkdir ~/rf cd rf git clone --recursive https://github.com/gnuradio/volk.git cd volk mkdir build cd build cmake -DCMAKE_BUILD_TYPE=Release -DPYTHON_EXECUTABLE=/usr/bin/python3 ../ make sudo make install sudo ldconfig

After installing the Volk library, we can proceed to build GNU Radio.

cd ~/rf wget https://github.com/gnuradio/gnuradio/archive/refs/tags/v3.10.10.0.tar.gz tar -xvf ./v3.10.10.0.tar.gz cd gnuradio-3.10.10.0 mkdir build cd build cmake -DCMAKE_BUILD_TYPE=Release -DPYTHON_EXECUTABLE=/usr/bin/python3 ../ make -j8 make test sudo make install sudo ldconfig

Now GNU Radio is installed with all necessary components. To enable RTL SDR support, we must build and install Osmocom RTL SDR libraries and SDR components.

cd ~/rf git clone https://gitea.osmocom.org/sdr/rtl-sdr.git cd rtl-sdr mkdir build cd build cmake ../ -DINSTALL_UDEV_RULES=ON make sudo make install sudo ldconfig

cd ~/rf git clone https://gitea.osmocom.org/sdr/gr-osmosdr cd gr-osmosdr mkdir build cd build cmake ../ make sudo make install sudo ldconfig

Before plugging in the RTL-SDR dongle, we need to prevent the kernel modules for the RTL-SDR USB device from being loaded into the kernel and taking ownership of the device. To do this, simply navigate to the /etc/modprobe.d directory and create a file called rtl-sdr-blacklist.conf with the following content:

# This system has librtlsdr0 installed in order to # use digital video broadcast receivers as generic # software defined radios. blacklist dvb_usb_rtl28xxu blacklist e4000 blacklist rtl2832 blacklist rtl2830 blacklist rtl2838

Next, you should clone and build the FM RDS/TMC transceiver module for GNU Radio.

cd ~/rf wget https://github.com/bastibl/gr-rds/archive/refs/tags/v3.10.tar.gz tar -xvf ./gr-rds\ -v3.10.tar.gz cd gr-rds-3.10 mkdir build cd build cmake .. make sudo make install sudo ldconfig

For the next steps, we need to have Wireshark and RFTap. Wireshark can be installed using a package manager.

sudo apt-get install wireshark

To run Wireshark without requiring root user permissions, use the following set of commands:

sudo dpkg-reconfigure wireshark-common sudo usermod -a -G wireshark $USER newgrp wireshark

A message may be prompted in the first step above and proceed by selecting the "Yes" option.

Now restart the OS and continue with the RFTap installation.

The official RFTap repository is no longer being maintained and is not compatible with newer versions of GNU Radio. For this step, please use the RFTap fork available in my GitHub repository. This version has been successfully tested with GNU Radio 3.10.10 and Wireshark 4.2.2.

cd ~/rf git clone https://github.com/dilshan/gr-rftap.git cd gr-rftap mkdir build cd build cmake .. make sudo make install sudo ldconfig

Now get the modifier version of rds_rx_rftap.grc from the above repository.

The Wireshark Dissector file for RDS data is also available in the repository. Copy it to the ~/.config/wireshark/plugins directory. Create the directories if they do not exist.

Launch Wireshark and monitor the loopback (lo) adapter. Start GNU Radio and execute the rds_rx.grc file, which was downloaded in the above step.

If all the steps are performed correctly, the RDS data should appear in the packet list pane as UDP messages. The dissected messages can be observed through the packet bytes pane.

[lanshengic]

Microchip FPGA uses customized PolarFire FPGA and SoC solution protocol stack to accelerate intelligent edge design, reduce development cost and risk

【Lansheng Technology News】Microchip Technology Inc. today announced the addition of nine new technology and application-specific solutions to its growing mid-range FPGA and system-on-chip support products, covering industrial edge, intelligent embedded vision and edge communication.

Previously, Microchip announced in June an industrial edge protocol stack and extensive resources for OPC/UA to help customers switch to PolarFire FPGAs and SoCs.

Tailor-made solution stack – only available for PolarFire FPGAs and SoCs

Unlike alternatives that provide baseline support for overly broad application categories, the PolarFire FPGA Intelligent Edge Solution protocol stack is highly customized for specific technology and vertical market needs and includes detailed intellectual property, reference designs, and example designs. Development kits, application notes, demonstration guides, and more.

Microchip’s new PolarFire FPGA and SoC smart edge solutions and protocol stacks address the following applications:

Intelligent embedded vision:

H.264 compression

HDMI®

Serial digital interface

CoaXpress®

Industrial edge applications:

Motor control

Open Platform Communications/Unified Architecture (OPC/UA)

Edge communications:

Software defined radio

USXGMII

Small form factor pluggable (SFP+) optical module

5G ORAN

About PolarFire® FPGA Series

Microchip's devices lead their class, delivering twice the energy efficiency, military-grade security and the industry's highest reliability. As Microchip continues to increase computing power in smaller, lower-cost industrial, IoT and other edge computing products, the company will further expand product capabilities through the PolarFire 2 FPGA roadmap.

Featuring a real-time, Linux®-based RISC-V microprocessor subsystem, PGAStack" devices are the only SoCs on the market that create new configurable processing capabilities through a hardened RISC-V core complex within a fast FPGA fabric.

This family of FPGA and SoC devices is ideal for creating custom computing within the FPGA fabric, playing an important role in driving the rapid growth of the intelligent edge systems market. Developers can design using Microchip's PolarFire family of products with these products/fpgas-and-plds/fpga-and-soc-design-tools/fpga/libero-software-later-versions?utm_medium=PressRelease&utm_content=FPGA&utm_campaign=FPGAStack" .

Lansheng Technology Limited, which is a spot stock distributor of many well-known brands, we have price advantage of the first-hand spot channel, and have technical supports. 

Our main brands: STMicroelectronics, Toshiba, Microchip, Vishay, Marvell, ON Semiconductor, AOS, DIODES, Murata, Samsung, Hyundai/Hynix, Xilinx, Micron, Infinone, Texas Instruments, ADI, Maxim Integrated, NXP, etc

To learn more about our products, services, and capabilities, please visit our website at http://www.lanshengic.com

[sdrdxhound]

Skywavelinux 4.0 is released. Enjoy the fresh and responsive realtime Xanmod kernel 5.6, Ubuntu MATE 20.04 base, and the i3 window manager.

It has hardware drivers and SDR apps out of the wazoo. SoapySDR, Gr-OsmoSDR supporting Gqrx and CubicSDR.

[mostlysignssomeportents]

Owning a sports-team is a plute's get-out-of-tax-free card

When Microsoft CEO (and Linux archnemesis) Steve Ballmer retired and bought the LA Clippers, it was easy to assume that the billionaire was engaged in a jolly, buying a major league sports team as a folly.

But far from it: Ballmer made his bones (and his billions) by cheating — lying about free software; secretly funding absurd, crippling, pretextual lawsuits over GNU/Linux; and leading a vast, corrupt monopoly — and his foray into sports ownership was no different.

As Robert Faturechi, Justin Elliott and Ellis Simani document in yet another blockbuster Propublica Secret IRS Files story, buying the LA Clippers allowed Ballmer to evade $140m in taxes from the sale of Microsoft stock.

https://www.propublica.org/article/the-billionaire-playbook-how-sports-owners-use-their-teams-to-avoid-millions-in-taxes

Sports teams, it turns out, are not merely billionaires’ playthings — they’re also a way to launder the earnings of the ultra-rich to reduce their tax liabilities far below the liabilities owed by the minimum wage workers serving pretzels or the millionaire players.

Ballmer’s tax dodge involved ginning up $700m in paper losses for the team by amortizing its assets, including assets that don’t depreciate. It’s part of an old dodge in sports-team ownership, perfected by Cleveland Indians/Chicago White Sox owner Bill Veeck in the 1940s.

Veeck didn’t think that wealthy sports team owners should pay any tax (“Look, we play the Star Spangled Banner before every game. You want us to pay income taxes too?”) and conceived of a “gimmick” (his word) to make this a reality.

In addition to taking a deduction for his players’ salaries, he insisted that he could depreciate the value of his players’ salaries, by acquiring the team and its contracts in two separate transactions. It worked.

As former MLB president Paul Beeston wrote, “Under generally accepted accounting principles, I could turn a $4 million profit into a $2 million loss and I could get every national accounting firm to agree with me.”

Congress and the IRS eventually caught up with this shuck, but in 2004, one-time sports-team owner GW Bush signed a law reinstating the rule, allowing team-owners to amortize everything from TV and radio contracts to “goodwill.”

This is how Ballmer was able to pay 12% tax on $656m in income, while athletes pay 30–40% on far more modest sums. Ballmer’s not the only one who got in on this scam — there’s a whole all-star team of ultra-rich owners who cash in on it.

This may explain why national sports franchises have increased in value by 500% over the past 20 years — they’re not just a way to earn income, they’re also a way for the ultra-rich to evade taxes.

Propublica’s reporting didn’t stop at Ballmer. They also talk about owners like Leonard Wilf (Minnesota Vikings) and Shahid Khan (Jacksonville Jaguars).

Khan issued a statement in his defense: “In the case of tax laws, the IRS applies and enforces the regulations, which are absolute. We simply and fully comply with those very IRS regulations.”

This is the same excuse that has been offered since the first Secret IRS Files publication in June: Rich tax evaders don’t make the rules, they just follow them. If you don’t like the rules, ask Congress for better ones.

https://pluralistic.net/2021/06/08/leona-helmsley-was-a-pioneer/#eat-the-rich

This excuse’s flimsiness is obvious: if there are weak tax rules for the super-rich, that’s not merely because the IRS forgot to close a loophole or Congress didn’t pass a law — the super-rich suborn regulators and lawmakers to create rules that operate to their advantage.

But there’s a subtler, technical reason this is bullshit. Writing for The American Prospect’s Revolving Door project, Sion Bell explains the “Economic Substance Doctrine.”

https://prospect.org/economy/one-weird-trick-force-billionaires-pay-taxes-economic-substance-doctrine/

This is a part of the tax code that excludes transactions “that lacks a concrete purpose beyond reduction of tax liability.” The language in the tax code is very broad, and does not define key terms like “transaction,” “trade or business,” or “economic position.”

On the one hand, this gives the IRS broad latitude to go after pretextual transactions that create risible fictions like the ones deployed by the team owners. On the other hand, the fuzziness of the standard allows deep-pocketed cheats to tie up the IRS in court for years.

The IRS’s budget was gutted in 2010 (in response to the lie that right-wing groups were being charitable status), and has been lagging ever since, with especially deep cuts to its enforcement budget.

The point of the Economic Substance Doctrine is the backstop the rest of the tax-code. Anything as complex as the code will have loopholes, even without rich people doing everything they can to make sure they’re there.

It functions as a “giggle test” that checks tax avoidance strategies that claim (as Peter Thiel did) that stashing $5b tax-free in an IRA is consistent with a retirement vehicle that allows middle-class people to save small sums for their dotage.

Even absent enforcement, the Economic Substance Doctrine is a rebuttal to the argument that ultra-rich tax cheats are just “obeying the law.” The law — the US tax code — bans the clever fictions they use to pay lower tax rates than the rest of us.

Sports team owners’ double-dipping amortization scams are not consistent with the tax code — it’s just that the part of the law they’re breaking is expensive to enforce, and there’s no budget to do so.

Image: Eric Garcetti (modified) https://commons.wikimedia.org/wiki/File:Steve_Ballmer_2014.jpg

CC BY: https://creativecommons.org/licenses/by/2.0/deed.en

[craftynerdinternet]

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Bhagavad-Gita or the Song of the Divine One is a celebrated episode in the epic, Mahabharata. It is the form of a dialogue between Dhritarashtra, the blind king of Hastinapura, and Sanjaya who describes the happenings on the battlefield to the king. The Gita draws much from the Upanishads and is often described as the quintessence of the Upanishads. The positive approach of the Gita has made it dynamic but the attempts at defining the indefinable have imposed certain limitations too and hence the apparent contradictions in the Gita. This book does not claim to be an exposition of the Gita, but is only an introduction. We have also taken the liberty of interpreting some of the ideas propounded in the Gita with a view to make them intelligible to the younger age group. The first nine pages of our book are not part of the Gita but are given to provide the background to our young readers. We owe a debt of gratitude to His Holiness Swami Ranganathanada and His Holiness Swami Chinmayananda for sparing their precious time to go through the text and making valuable suggestions.

[kreuzaderny]

bladeRF-wiphy

The bladeRF-wiphy project is an open-source IEEE 802.11 compatible software defined radio VHDL modem. The modem is able to modulate and demodulate 802.11 packets (the protocol WiFi is based on), and run directly on the bladeRF 2.0 micro xA9’s FPGA.

The bladeRF-wiphy coupled with Linux mac80211 allows the bladeRF 2.0 micro xA9 to become a software defined radio 802.11 access point! 802.11 packets (PDUs) are modulated and demodulated directly on the FPGA, so only 802.11 packets are transferred between the FPGA and libbladeRF.

[rudolph80k1550-blog]

Convert MP3 To MIDI ( Or WAV, AAC, WMA, OGG)

Music connects to souls immediately, we can easily get carried by the beats and melodies. It is very easy to get your MP3 file converted to MIDI utilizing this online software. Not solely MP3 but additionally various different file formats like WAV, midi to mp3 converter linux OGG, midi to mp3 converter linux AAC, WMA can be transformed to MIDI. Simply drag and drop your MP3 file and bear file converter will do the remaining. Remember this is a free online MP3 to MIDI converter device.

Piston Software's Direct midi to mp3 converter linux to MP3 Converter" means that you can convert a MIDI file to an audio file in any of the next formats: MP3, WAV, WMA, or OGG Vorbis. The concept is seductive: it is easy to convert MIDI to sheet music, so if it have been attainable to extract a MIDI file from an MP3, then you definately would have easy accessibility to the sheet music of your favourite songs. The problem is that this: An MP3 — or WAV or any other type of audio file — is like an apple pie. Set the conversion settings. Click on "iTunes" in the menu bar ("Edit" menu if using Home windows) after which click on "Preferences". Select the "Basic" tab. Go down and click on "Import Settings". Then on "Import Using", select "MP3 Encoder". Then save your your settings by clicking "OKAY". ConverterLite - Free Audio and Video Converter. ConverterLite is a free MP3 to MIDI converter for Home windows customers. With over 2,500,000 downloads, ConverterLite seems to be the most effective MP3 to MIDI converters obtainable. However the support is proscribed to Home windows 7, Windows XP and Home windows Vista. Find out how to Convert MP3 to M4R Ringtone with out iTunes The excellent news is that there's an easier method. iMyFone TunesMate is a program that may let you seamlessly transfer your music from iTunes or your computer directly to your iPhone as a ringtone. You can use existing MIDI files and have them transcribed to sheet music. Notation Musician and Notation Composer faithfully convert MIDI (.mid) or Karaoke (.kar) information to sheet music. Many a whole bunch of hundreds of MIDI information are available on the Web. Online ads embody text, photos, and enhanced content that Yahoo has been paid to position in certain locations on Yahoo sites. Obtain (or purchase) a file conversion program. Search for a program that particularly mentions "midi to wav" or "midi to mp3". MIDI is like sheet music - it is digital sheet music, in actual fact. So what you're asking is rather like asking the way to convert sheet music into a CD in an effort to listen within the automobile. Properly the answer there is "perform it and record it." Similar with MIDI. What you need is a MIDI participant that may document itself to MP3. Mp3 conversion takes time and requires computing resources, it is recommended to test the primary 30 seconds and listen to the consequence before converting the entire file. On-line Video Converter and obtain in A number of Formats Obtain and Convert movies in multiple formats including MP4, AVI, MP3, WEBM, 3GP. This utility mainly is designed for recording the music. It may well recognize artificially produced music and convert it into MIDI. Furthermore, in case your audio file has various musical instruments, then Superb MIDI can detect and analyze every single note of every instrument. Step four: When the applying finishes the conversion, you'll be able to obtain the converted file to your computer. It'll easily open in your default audio player like Home windows Media Participant. When you convert a music from a compressed to an uncompressed format, its high quality would not improve. The file only takes up more disk house. An instance is when you convert a music in MP3 format (a compressed format) to AIFF (an uncompressed format). Converting your MP3 information to an audio CD allows compatibility with players that don't support MP3 information. Sadly, this compatibility drastically reduces the variety of songs that can match on a single CD. Trendy CDs typically assist 700MB of knowledge or 80 minutes of music. direct midi to mp3 converter free obtain - Direct MIDI to MP3 Converter, Sensible Video Converter, Quick MIDI to MP3 Converter, and many extra applications. There's a big distinction between regular audio files (like MP3, WAV, WMA and so on.) and MIDI. To put it straight, MIDI are usually not audio information. They comprise description on the right way to create music, but not music itself. MP3 to YouTube Converter: Upload MP3 to YouTube. Latest survey reveals that Google's video streaming site Youtube has surpassed radio, in addition to CDs to be the most well-liked approach American adolescents hearken to music. We hope you enjoy all the features we have put into our fast Direct MIDI to MP3 Converter. Most MP3 players which can be able to burning songs onto CD's will automatically convert information audio MP3 information to CD Audio format. Windows Media Participant is free, and comes installed on most Home windows computers. Apple iTunes can be free, and will convert MP3 information to CD Audio on a Mac.

[skywavelinux]

Skywave Linux v5 is Now on Debian Sid!

Enjoy shortwave radio and overseas broadcasts, no matter where you are. Skywave Linux brings the signals to you. Broadcasting, amateur radio, maritime, and military signals are available at your fingertips.

Skywave Linux is a free and live computing environment you boot from a flash drive on your PC. Start it up, pick a radio server somewhere in the world, and tune in some stations.

Skywave Linux brings you the signals, whether or not you have a big outdoor antenna or can afford an expensive communications receiver. Hundreds and hundreds of volunteer operated radio servers are on the internet, which let you tune the airwaves and pick up broadcasts in excellent locations and on high performance equipment.

If you are into FT-8, PSK-31, JT-65, or other digimodes, you can decode the signals in Skywave Linux. It also has tools for decoding weather satellites, ACARS, and ADS-B signals.

Not only is Skywave Linux a prime system for software defined radio, but also for programming and coding. It has the Neovim editor and support for several programming languages: Python, Lua, Go, and Javascript. It is a great system for Web developers.

Debian Sid is now the base operating system which Skywave Linux builds upon. It is debloated, tuned, and tweaked for speed, so that you get the best possible computing performance. It works nicely on old laptops; it is super fast on a multi core, high spec PC.

For shortwave listening, weather satellite decoding, or airband monitoring, Skywave Linux is the system you want!

[ericvanderburg]

Mastering Shortwave Listening (SWL) with Fedora Linux and Software Defined Radio

http://dlvr.it/Snwdz6

[hackgit]

[Media] ​​BladeRF 2.

​​BladeRF 2.0 Micro xA4 The bladeRF 2.0 micro is the next-generation 2x2 MIMO, 47MHz to 6GHz frequency range, off-the-shelf USB 3.0 Software Defined Radio (SDR) that is easy and affordable for students and RF enthusiasts to explore wireless communications, yet provides a powerful waveform development platform expected by industry professionals. Support is available for Linux, macOS, and Windows. The bladeRF libraries, utilities, firmware, and platform HDL are released under open source licenses, and schematics are available online. The FPGA and USB 3.0 peripheral controller are programmable using vendor-supplied tools and SDKs that are available online, free of charge. Car Hacking Part 3: Rolljam Attack: https://scare.rocks/2022/01/27/Car-Hacking-Part-3-Rolljam-Attack.html Buy online: �� https://alii.pub/6o2uor #radio #bladerf #SDR

[sdrdxhound]

A nearly two hour video of AB9IL collecting geolocations on the 3860 kHz ham radio jammers. Sometimes it was a pileup of noise and music dumped on those alt-right brownshirts who congregate to circle jerk on 75 meters every night.

[ryjelsum]

to be honest after playing around a little bit with wifi and doing point to point speed tests between two wireless routers i definitely see where those papers that came out semi recently that are like "people can be detected in a room by looking at signals from a wifi router" got their ideas from, i can significantly affect the internet speed between two routers just by standing in the middle or putting my hands over the antennae.

this is just using a very simple quantitative metric, i def know you can look at wifi signals in even more detail than i did with the ath9k linux driver.. atheros wifi cards are apparently basically narrow band software defined radios. i have no idea if i'm using the term 'narrow band' correctly here, i'm not a radio engineer guy. maybe a better term would be 'limited band' because they can go only somewhat outside of the range of normal wifi signals, into some amateur radio frequencies. some people run civilian mesh networks on that frequency set (info also in above link). also the ath9k driver is very robust and you can do some cool stuff with the robust support the main issue is just that the actual hardware is. not great. like 300mbps maximum according to specs. but for hacking on it's great

[khalidhusain786]

Sparrow wifi

This package contains a gaphical Wi-Fi analyser for Linux. It provides a more comprehensive GUI-based replacement for tools like inSSIDer and linssid that runs specifically on Linux. In its most comprehensive use cases, sparrow-wifi integrates Wi-Fi, software-defined radio (hackrf), advanced bluetooth tools (traditional and Ubertooth), traditional GPS (via gpsd), and drone/rover GPS via mavlink…