De Mixer Geek Theremin+ is een leuk en innovatief elektronisch muziekinstrument, geïnspireerd op de klassieke theremin. In tegenstelling tot traditionele instrumenten wordt de Theremin+ bespeeld zonder fysiek contact, waarbij de toonhoogte en het volume worden geregeld met handbewegingen in de lucht.
De Theremin+ biedt een spannende en praktische manier om muziek te ontdekken en met geluid te experimenteren.
Kenmerken
Klaar voor gebruik direct uit de doos
Uitgerust met een luidspreker en een kleurenscherm
Intuïtieve navigatie en bevestiging met knoppen
Kies uit meer dan 70 tonen
Meerdere aanpasbare functie-instellingen
Geeft golfvorm, tijd, frequentie, volume en bijbehorende pianotoonhoogte weer (display kan worden uitgeschakeld)
Aangedreven via USB-C poort; compatibel met powerbanks
Compact ontwerp met afneembare telescopische antenne voor eenvoudige opslag
Maakt verbinding met een hoofdtelefoon, externe luidsprekers of opnameapparatuur
Afmetingen: 98 x 70 x 18 mm
Inbegrepen
1x Theremin+ muziekinstrument
2x Antennes
1x USB-C-kabel
All you need to know about good acoustics and sound systems in performance and worship spaces!
Everyone knows that the ability to hear music in balance and to understand speech is essential in any space used for performance or worship. Unfortunately, in the early 21st century, we find that buildings with good acoustics are the exception rather than the rule. Much of the fault leading to this result can be traced to the widespread perception that acoustics is a black art. In fact, scientific acoustics as developed in the last century is a well-defined engineering practice that can lead to predictable excellent results.
A basic, non-engineering understanding of acoustics will help building owners, theater managers, ministers and teachers of music, performers, and other professionals to achieve their goals of excellent acoustics in venues with which they work. Performers having a basic understanding of acoustics will be able to make the most of the acoustics of the venue in which they perform.
This book helps those responsible for providing good acoustics in performance and worship spaces to understand the variables and choices entailed in proper acoustic design for performance and worship. Practicing acoustical consultants will find the book a useful reference as well. The level of presentation is comfortable and straightforward without being simplistic. If correct acoustical principles are incorporated into the design, renovation, and maintenance of performance and worship venues, good acoustics will be the result.
The Theremin was the first music synthesizer. The Junior Theremin is our, smaller, version of that classic electronic musical instrument. As you move your hand towards and away from the wire aerial, the Theremin responds by changing the pitch of the note it is playing. It can play individual notes as well as varying the tone of a single note.
How do you use the Theremin?
The wire aerial responds to the movement of your hand towards and away from it and changes the pitch of the note it plays, without actually being touched. Junior Theremin works in two modes – continuous and discrete. When you first connect the battery Junior Theremin is in continuous mode. Pressing both pushbuttons together switches between continuous and discrete modes. Discrete mode, as its name implies, plays individual or discrete notes rather than a continuously variable tone. Eight notes over a single octave are available. In discrete mode the two pushbuttons change the octave of the notes. The left-hand pushbutton (marked -) lowers the octave, and the right-hand pushbutton (marked +) raises the octave. The pushbuttons only change the octave so long as they are pressed. In continuous mode the pushbuttons have no effect.
Downloads
Manual
All you need to know about good acoustics and sound systems in performance and worship spaces!
Everyone knows that the ability to hear music in balance and to understand speech is essential in any space used for performance or worship. Unfortunately, in the early 21st century, we find that buildings with good acoustics are the exception rather than the rule. Much of the fault leading to this result can be traced to the widespread perception that acoustics is a black art. In fact, scientific acoustics as developed in the last century is a well-defined engineering practice that can lead to predictable excellent results.
A basic, non-engineering understanding of acoustics will help building owners, theater managers, ministers and teachers of music, performers, and other professionals to achieve their goals of excellent acoustics in venues with which they work. Performers having a basic understanding of acoustics will be able to make the most of the acoustics of the venue in which they perform.
This book helps those responsible for providing good acoustics in performance and worship spaces to understand the variables and choices entailed in proper acoustic design for performance and worship. Practicing acoustical consultants will find the book a useful reference as well. The level of presentation is comfortable and straightforward without being simplistic. If correct acoustical principles are incorporated into the design, renovation, and maintenance of performance and worship venues, good acoustics will be the result.
Sound Secrets and Technology
What would today’s rock and pop music be without electric lead and bass guitars? These instruments have been setting the tone for more than sixty years. Their underlying sound is determined largely by their electrical components. But, how do they actually work? Almost no one is able to explain this to the true musician with no technical background. This book answers many questions simply, in an easily-understandable manner.
For the interested musician (and others), this book unveils, in a simple and well-grounded way, what have, until now, been regarded as manufacturer secrets. The examination explores deep within the guitar, including pickups and electrical environment, so that guitar electronics are no longer considered highly secret. With a few deft interventions, many instruments can be rendered more versatile and made to sound a lot better – in the most cost-effective manner.
The author is an experienced electronics professional and active musician. He has thoroughly tested everything described here, in practice.
Easy and Affordable Digital Signal Processing
The aim of this book is to teach the basic principles of Digital Signal Processing (DSP) and to introduce it from a practical point of view using the bare minimum of mathematics. Only the basic level of discrete-time systems theory is given, sufficient to implement DSP applications in real time. The practical implementations are described in real time using the highly popular ESP32 DevKitC microcontroller development board. With the low cost and extremely popular ESP32 microcontroller, you should be able to design elementary DSP projects with sampling frequencies within the audio range. All programming is done using the popular Arduino IDE in conjunction with the C language compiler.
After laying a solid foundation of DSP theory and pertinent discussions on the main DSP software tools on the market, the book presents the following audio-based sound and DSP projects:
Using an I²S-based digital microphone to capture audio sound
Using an I²S-based class-D audio amplifier and speaker
Playing MP3 music stored on an SD card through an I²S-based amplifier and speaker
Playing MP3 music files stored in ESP32 flash memory through an I²S-based amplifier and speaker
Mono and stereo Internet radio with I²S-based amplifiers and speakers
Text-to-speech output with an I²S-based amplifier and speaker
Using the volume control in I²S-based amplifier and speaker systems
A speaking event counter with an I²S-based amplifier and speaker
An adjustable sinewave generator with I²S-based amplifier and speaker
Using the Pmod I²S2 24-bit fast ADC/DAC module
Digital low-pass and band-pass real-time FIR filter design with external and internal A/D and D/A conversion
Digital low-pass and band-pass real-time IIR filter design with external and internal A/D and D/A conversion
Fast Fourier Transforms (FFT)
The Punk Console circuit is an advanced tutorial to get you familiar with the V-One Drill attachment. Learn how to create a double sided board and turn the knobs to create music! The kit contains: 2x Green LEDs 8x 1k Resistors 3x 0.01uF Capacitor 2x 500K Trimpots 1x 556 Timer 1x Piezo Buzzer 1x 9 V Battery 1x 9 V Battery Connector Rivets and a V-One Drill are required.
Sound Secrets and Technology
What would today’s rock and pop music be without electric lead and bass guitars? These instruments have been setting the tone for more than sixty years. Their underlying sound is determined largely by their electrical components. But, how do they actually work? Almost no one is able to explain this to the true musician with no technical background. This book answers many questions simply, in an easily-understandable manner.
For the interested musician (and others), this book unveils, in a simple and well-grounded way, what have, until now, been regarded as manufacturer secrets. The examination explores deep within the guitar, including pickups and electrical environment, so that guitar electronics are no longer considered highly secret. With a few deft interventions, many instruments can be rendered more versatile and made to sound a lot better – in the most cost-effective manner.
The author is an experienced electronics professional and active musician. He has thoroughly tested everything described here, in practice.
The State of Hollow State Audio in the Second Decade of the 21st Century
Vacuum-tube (or valve, depending upon which side of the pond you live on) technology spawned the Age of Electronics early in the 20th Century. Until the advent of solid-state electronics near mid-century, hollow-state devices were the only choice. But following the invention of the transistor (after their process fell to reasonable levels), within a couple of decades, the death of vacuum tubes was widely heralded. Yet here we are some five decades later, and hollow-state equipment is enjoying something of a comeback, especially in the music and high-end audio industries.
Many issues surround hollow-state audio:
Does it produce—as some claim—better sound? If so, is there science to back up these claims?
How do hollow-state circuits work?
How do you design hollow-state audio circuits?
If hollow-state equipment fails, how do you go about troubleshooting and repairing it?
Can we recreate some of the classic hollow-state audio devices for modern listening rooms and recording studios?
How can we intelligently modify hollow-state amplifiers to our taste?
These and other topics are covered in The State of Hollow State Audio.
40+ Projects using Arduino, Raspberry Pi and ESP32
This book is about developing projects using the sensor-modules with Arduino Uno, Raspberry Pi and ESP32 microcontroller development systems. More than 40 different sensors types are used in various projects in the book. The book explains in simple terms and with tested and fully working example projects, how to use the sensors in your project. The projects provided in the book include the following:
Changing LED brightness
RGB LEDs
Creating rainbow colours
Magic wand
Silent door alarm
Dark sensor with relay
Secret key
Magic light cup
Decoding commercial IR handsets
Controlling TV channels with IT sensors
Target shooting detector
Shock time duration measurement
Ultrasonic reverse parking
Toggle lights by clapping hands
Playing melody
Measuring magnetic field strength
Joystick musical instrument
Line tracking
Displaying temperature
Temperature ON/OFF control
Mobile phone-based Wi-Fi projects
Mobile phone-based Bluetooth projects
Sending data to the Cloud
The projects have been organized with increasing levels of difficulty. Readers are encouraged to tackle the projects in the order given. A specially prepared sensor kit is available from Elektor. With the help of this hardware, it should be easy and fun to build the projects in this book.
Laat uw innerlijke Mozart bovenkomen met de Piano HAT, een mini muzikale metgezel voor uw Raspberry Pi! De Piano HAT is geïnspireerd op de PiPiano van Zachary Igielman en gemaakt met zijn instemming. We hebben zijn fantastische idee om een kleine piano add-on te bouwen voor de Raspberry Pi overgenomen, deze aanraakgevoelig gemaakt, en netjes afgewerkt met veel van onze kenmerkende Pimoroni lak. Speel muziek af in Python, bedien softwaresynths op je Pi, en pak zelf de controle over hardwaresynthesizers! Kenmerken 16 capacitieve touchpads (elk te koppelen aan hun eigen Python functie!) 13 pianotoetsen (een volledig octaaf) Octaaf omhoog/omlaag knoppen Knop voor instrumentcyclus (ideaal voor gebruik met synthesizers) 16 helderwitte leds (laat ze automagisch oplichten of neem de controle over met Python) 2x Microchip CAP1188 capacitieve touch driver chips Gebruik hem om software- of hardwaresynths te besturen via MIDI Compatibel met alle 40-pins header Raspberry Pi modellen Wordt volledig gemonteerd geleverd Downloads Python library Pinout
PÚCA DSP is an open-source, Arduino-compatible ESP32 development board for audio and digital signal processing (DSP) applications with expansive audio-processing features. It provides audio inputs, audio outputs, a low-noise microphone array, an integrated test-speaker option, additional memory, battery-charge management, and ESD protection all on a small, breadboard-friendly PCB.
Synthesizers, Installations, Voice UI, and More
PÚCA DSP can be used for a wide range of DSP applications, including but not limited to those in the fields of music, art, creative technology, and adaptive technology. Music-related examples include digital-music synthesis, mobile recording, Bluetooth speakers, wireless line-level directional microphones, and the design of smart musical instruments. Art-related examples include acoustic sensor networks, sound-art installations, and Internet-radio applications. Examples related to creative and adaptive technology include voice user interface (VUI) design and Web audio for the Internet of Sounds.
Compact, Integrated Design
PÚCA DSP was designed for portability. When used with an external 3.7 V rechargeable battery, it can be deployed almost anywhere or integrated into just about any device, instrument, or installation. Its design emerged from months of experimentation with various ESP32 development boards, DAC breakout boards, ADC breakout boards, Microphone breakout boards, and audio-connector breakout boards, and – despite its diminutive size – it manages to provide all of that functionality in a single board. And it dos so without compromising signal quality.
Specifications
Processor & Memory
Espressif ESP32 Pico D4 Processor
32-bit dual core 80 MHz / 160 MHz / 240 MHz
4 MB SPI Flash with 8 MB additional PSRAM (Original Edition)
Wireless 2.4 GHz Wi-Fi 802.11b/g/n
Bluetooth BLE 4.2
3D Antenna
Audio
Wolfson WM8978 Stereo Audio Codec
Audio Line In on 3.5 mm stereo onnector
Audio Headphone / Line Out on 3.5 mm stereo connector
Stereo Aux Line In, Audio Mono Out routed to GPIO Header
2x Knowles SPM0687LR5H-1 MEMS Microphones
ESD protection on all audio inputs and outputs
Support for 8, 11.025, 12, 16, 22.05, 24, 32, 44.1 and 48 kHz sample rates
1 W Speaker Driver, routed to GPIO Header
DAC SNR 98 dB, THD -84 dB (‘A’ weighted @ 48 kHz)
ADC SNR 95 dB, THD -84 dB (‘A’ weighted @ 48 kHz)
Line input impedance: 1 MOhm
Line output impedance: 33 Ohm
Form Factor and Connectivity
Breadboard friendly
70 x 24 mm
11x GPIO pins broken out to 2.54 mm pitch header, with access to both ESP32 ADC channels, JTAG and capacitive touch pins
USB 2.0 over USB Type C connector
Power
3.7/4.2 V Lithium Polymer Rechargeable Battery, USB or external 5 V DC power source
ESP32 and Audio Codec can be placed into low power modes under software control
Battery voltage level detection
ESD protection on USB data bus
Downloads
GitHub
Datasheet
Links
Crowd Supply Campaign (includes FAQs)
Hardware Overview
Programming the Board
The Audio Codec