The vocoder was originally developed in the 1930s as a speech encoder for telecommunications. During World War II, it was used to scramble conversations between Churchill and Roosevelt. In the 1970s, Wendy Carlos and Kraftwerk popularized its use in music. This sparked interest from synthesizer and keyboard companies to incorporate vocoding capabilities. By the late 1970s and 1980s, many popular artists were using vocoders in their music. Today, vocoding is integrated into digital audio workstations and can be controlled with MIDI for musical pitch manipulation.
Creating a Remix w/ D.Satori (2/16/18)Danny Satori
Creating a Remix w/ D.Satori (2/16/18)
Presented by D. Satori | www.dannysatori.com
Hosted by Mmmmaven | http://mmmmaven.com/
Have you ever heard a track, and wanted to give it a twist with a fresh, unique sound? If so, please join us on Friday, the 16th of November, as D.Satori shares his global approach to creating the ultimate remix. From conceptualization to execution, D will deconstruct the different levels of building harmonic/melodic motifs, quick tips for Ableton Live workflow, and deconstructing select reference tracks. Open to all levels from Beginner to Advanced, with a Q&A session to follow.
Whether it be performing live electronica at the Ableton Loop Conference in Funkhaus Berlin or hybrid DJ sets for ToUch Performance Art’s AcousticaElectronica, D.Satori is no stranger to artistic expression. Having been a featured artist on imprints such as Teknofonic Recordings (NYC) & Krafted Digital (London), D loves to share his passion for musicianship and advocates for the transcendent power of musical education. For more information, please visit www.dannysatori.com.
Level: Beginner - Advanced
Creating a Remix w/ D.Satori (2/16/18)Danny Satori
Creating a Remix w/ D.Satori (2/16/18)
Presented by D. Satori | www.dannysatori.com
Hosted by Mmmmaven | http://mmmmaven.com/
Have you ever heard a track, and wanted to give it a twist with a fresh, unique sound? If so, please join us on Friday, the 16th of November, as D.Satori shares his global approach to creating the ultimate remix. From conceptualization to execution, D will deconstruct the different levels of building harmonic/melodic motifs, quick tips for Ableton Live workflow, and deconstructing select reference tracks. Open to all levels from Beginner to Advanced, with a Q&A session to follow.
Whether it be performing live electronica at the Ableton Loop Conference in Funkhaus Berlin or hybrid DJ sets for ToUch Performance Art’s AcousticaElectronica, D.Satori is no stranger to artistic expression. Having been a featured artist on imprints such as Teknofonic Recordings (NYC) & Krafted Digital (London), D loves to share his passion for musicianship and advocates for the transcendent power of musical education. For more information, please visit www.dannysatori.com.
Level: Beginner - Advanced
Speech Analysis and synthesis using VocoderIJTET Journal
Abstract— In this paper, I proposed a speech analysis and synthesis using a vocoder. Voice conversion systems do not create new speech signals, but just transform existing one. The proposed speech vocoding is different from speech coding. To analyze the speech signal and represent it with less number of bits, so that bandwidth efficiency can be increased. The Synthesis of speech signal from the received bits of information. In this paper three aspects of analysis have been discussed: pitch refinement, spectral envelope estimation and maximum voiced frequency estimation. A Quasi-harmonic analysis model can be used to implement a pitch refinement algorithm which improves the accuracy of the spectral estimation. Harmonic plus noise model to reconstruct the speech signal from parameter. Finally to achieve the highest possible resynthesis quality using the lowest possible number of bits to transmit the speech signal. Future work aims at incorporating the phase information into the analysis and modeling process and also synthesis these three aspects in different pitch period.
An overview of cognitive radio, comparison of cognitive radio vs. conventional radio, real-world applications for cognitive radio networks, how cognitive radios improve spectrum efficiency and address the wireless spectrum shortage.
CR : smart radio that has the ability to sense the external environment, learn from the history and make intelligent decisions to adjust its transmission parameters according
to the current state of the environment.
How to Become a Thought Leader in Your NicheLeslie Samuel
Are bloggers thought leaders? Here are some tips on how you can become one. Provide great value, put awesome content out there on a regular basis, and help others.
Speech Analysis and synthesis using VocoderIJTET Journal
Abstract— In this paper, I proposed a speech analysis and synthesis using a vocoder. Voice conversion systems do not create new speech signals, but just transform existing one. The proposed speech vocoding is different from speech coding. To analyze the speech signal and represent it with less number of bits, so that bandwidth efficiency can be increased. The Synthesis of speech signal from the received bits of information. In this paper three aspects of analysis have been discussed: pitch refinement, spectral envelope estimation and maximum voiced frequency estimation. A Quasi-harmonic analysis model can be used to implement a pitch refinement algorithm which improves the accuracy of the spectral estimation. Harmonic plus noise model to reconstruct the speech signal from parameter. Finally to achieve the highest possible resynthesis quality using the lowest possible number of bits to transmit the speech signal. Future work aims at incorporating the phase information into the analysis and modeling process and also synthesis these three aspects in different pitch period.
An overview of cognitive radio, comparison of cognitive radio vs. conventional radio, real-world applications for cognitive radio networks, how cognitive radios improve spectrum efficiency and address the wireless spectrum shortage.
CR : smart radio that has the ability to sense the external environment, learn from the history and make intelligent decisions to adjust its transmission parameters according
to the current state of the environment.
How to Become a Thought Leader in Your NicheLeslie Samuel
Are bloggers thought leaders? Here are some tips on how you can become one. Provide great value, put awesome content out there on a regular basis, and help others.
History of Digital Media from from1920 1930Zeeshan Shah
The digital media and Multimedia has recent history and this slide contains the information regarding the History of Digital media in details from 1920 to 1930 era.
This is a presentation I made (in French) at the Siestes Electroniques Music Festival in Toulouse, in June 2013.
It starts with a brief history of music distribution and then gets into to the details of digital music and streaming
How have technologies changed music and how have they changed the listener? - Sonya Sokolova, the publisher of www.Zvuki.ru, observes the music industry from 1900 to nowadays.
In this lecture you will learn:
- Why electronic musicians love gray;
- How the production of music and its distribution have changed over 100 years;
- Why the majority of great inventions came to us so late;
- Who was the first to create music from the trash and what Doctor Who has to do with it;
- How Russian and British monarchs created a fashion for gramophones;
- How many years it took to fit the orchestra in the garage;
- Why in 2020 musicians have more sources of income, but less money
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
2. WHAT IS THE VOCODER?
In basic terms, the vocoder (short for voice encoder) can be described as a type of
synthesizer that produces sound based on speech input. More specifically, the vocoder is an
analysis and synthesis system. The concept arose in the late 1920’s- early 1930’s, originally
developed to be a speech encoder within telecommunication devices, with the intention to
code human speech for transmission.
Records show that the first models of the vocoder were developed in 1939 and 1940. Homer
Dudley a research physicist in New Jersey developed the Voice Operated Recorder (or
CODER). This was a system originally designed to test compression schemes for secure
transmission of voice signals over copper wire. The system was developed in 2 parts;
1939 saw the invention of the Vocoder Speech Synthesizer. This was a valve driven device
was played by a human operator. The device had two keyboards, buttons to recreate
consonants, a pedal for oscillator frequency control and a switch to turn off vowel sounds.
In 1940 the parallel band pass vocoder was invented. This device analysed and re-
synthesized speech.
3. THE VOCODER AND THE WAR
If you’ve listened to pop music over the past 40 years or so you’ve probably come across that
‘dalek-like’ sounding speech. That’s all thanks to the vocoder. However, as mentioned on the
previous slide, the vocoder didn’t start out that way. As a means to better transmit speech through
telecommunication devices, the vocoder also played a role during the second world war. When it
was discovered that Winston Churchill and Franklin D Roosevelt’s conversations were being
intercepted by the Germans, Bell Labs was commissioned to create a device to throw a spanner in
the Germans works, so to speak.
Presumably based somewhat on Dudley’s original designs for the CODER, Bell Labs under
commission during the second world war produced the vocoder in 1942 which enabled
conversations between Churchill and Roosevelt to be harder to intercept. The vocoder scrambled
the speech being transmitted making it almost impossible for the Germans to decipher, the
scrambled speech would be put back together at the receiving end where it could be understood.
The vocoder however was not without it’s flaws, whilst making the speech patterns harder to
intercept, pitch control was apparently and issue when transmitting speech patterns through the
vocoder, no-one minded sounding like a robot in order to protect top secret data but there’s a line
between robot and chipmunk. (Now you’re trying to imagine Winston Churchill as a chipmunk, if not,
why not?).
4. FROM MILITARY TO MUSIC
So while the vocoder was not originally designed for musical purposes it has indeed made it’s name
in the world of music. The vocoder went through an interesting transition from world war device to
musical effect in 1971, oddly enough on the soundtrack for “A Clockwork Orange”. On this
soundtrack, Wendy Carlos recorded a vocoder interpretation of Beethoven’s fourth movement of the
ninth symphony. Since this odd yet very interesting musical encounter the vocoder has taken to the
stage in many more musical numbers by various artists. Without Carlos’ decision to use the vocoder
in this way, chances are many of the musical vocoding ventures that followed may not have
happened or at least not so soon.
After A Clockwork Orange, the vocoder made it’s way into music studios. The vocoder was still a
pricey piece of kit to get your hands on but allowed for a lot more variation and interesting effects
when writing and producing music. The German band known as ‘Kraftwerk’ were believed to be the
first musicians to use the vocoder in their work, the bands music was primarily electronic so using
the vocoder made a lot of sense and as mentioned before, opens a lot of doors for new effects.
Similarly to the clockwork orange idea, if Kraftwerk hadn’t chosen to use a vocoder as part of their
musical setup then chances are other artists may not have either or at least not until a while later. It
could be argued that Kraftwerk and Wendy Carlos sparked off a musical revolution through
vocoding, a brand new instrument that many were eager to try out.
Later, in the 1980’s the vocoder made it’s debut on what is believed to be the first hip-pop vocoder
album recorded by Michael Jonzun, titled ‘Lost in Space’. Quite fitting for the robot-esque sound
properties of the vocoder and the sounds produced by the vocoder went well with the synthesizer,
the sounds produced on this album were then widely heard during that decade.
Whilst the vocoder it less prominent in todays musical societies and is perhaps a little taken for
granted nowadays, it still lives on, I’m sure there are many artists that still appreciate the Vocoder
and it’s successor, ‘autotune’ is something many artists and producers are all too familiar with.
5. SO HOW DOES IT WORK?
So as mentioned on the first slide the vocoder works in two parts.
The analyzer detected energy levels within sound samples measured across the audio
spectrum through a series of narrow band filters. The results of this analysis could then be
viewed graphically as frequency against time.
The synthesizer then reversed this process. The synthesizer scanned the data from the
analyzer and supplied the results to several filters, hooked up to a noise generator. This
combination of devices and functions then produced the sounds.
So as for it’s use during the second world war. The vocoder recognised the energy levels
within the speech samples and using filters was able to scramble the audio frequencies thus
creating the robot-like speech used to transfer transoceanic messages.
6. VOCODING – A TIMELINE
With it’s growing involvement in the musical world it was inevitable that the vocoder would make it’s way into
instruments somewhere down the line. It seems as if anyone who was anyone wanted a piece of the vocoding
action, so here’s a time line with a few insights into how the vocoder developed following it’s use in the second
world war.
1960. The Siemens Synthesizer, developed in Munich was the first synthesizer to include a valve driven vocoding
unit among it’s various oscillators and filter functions. The Siemens Synthesizer, as mentioned was the first
synthesizer to use a vocoding unit and so without its debut in 1960 chances are synthesizers that incorporated a
vocoder may not have appeared on the scene until years later, it could be argued that this synthesizer was a
pioneer for synthesizers of this unit and also allowed musicians to use vocoding which was perhaps otherwise a
lot more difficult.
1967. A company by the name Sylvania created several devices that incorporated the vocoders use of time
related analysis of input signals as oppose to the previous, bandpass filter analaysis.
1971. Wendy Carlos and Bob Moog modified several synthesizer models after studying Dudley’s original unit in
order to create their own vocoder to be used on the Clockwork Orange Soundtrack. Their decision to make this
soundtrack influenced a change in the vocoder. The original unit would’ve been, in simple terms, a microphone
input through which a voice code would be manipulated but to be able to create the soundtrack for Clockwork
Orange, Carlos and Moog needed to be able to record and manipulate multiple sounds/instruments through more
than just one input. Their development of their own vocoding units allowed them to make a vocoder(s) with more
than one input and include filters and other modulating features, allowing them to achieve the desired sound for
the track(s).
7. VOCODING – A TIMELINE
1976. EMS produce a standalone and portable vocoder. The EMS studio vocoder (later renamed the EMS 5000)
was the worlds first commercially available vocoding unit and amongst it’s users were Stevie Wonder, Kraftwerk
and ‘Elektronische Musik’ pioneer Stockhausen. Similarly to the Siemens synthesizer, EMS took another
pioneering step in vocoding. Making a portable vocoder that was commercially available meant anyone could get
their hands on it and many well known artists did. Without EMS’ decision to make a vocoder that was
commercially available, those artists may not have been able to produce the sounds they did or include vocoding
in a live performance to great effect.
1977. EMS release the EMS 2000, a cut down version of the 5000. Sennheiser release the VMS 201.
1978. KORG release the VC-10. The increase in mainstream vocoding. The popularity of artists such as
Kraftwerk among other artists caused many companies to begin production of vocoding units, which shows just
how influential artists such as Kraftwerk were in terms of the vocoder, it inspired companies to produce more
vocoding units which shows there must’ve been a demand for them.
1979. Roland release an ensemble/vocoder keyboard, named VP 330.
Late 1970’s – 80’s. This time period is considered to be the vocoders prime. Many artists, including Pink Floyd,
David Bowie, Kate Bush, Eurhythmics and more were all believed to have used vocoders in their music.
8. VOCODING – A TIMELINE
1980 – present. EMS (UK), Synton (Holland), and PAiA (USA) have been, and still remain the
top manufacturers of vocoding units.
1996. Doepfer (germany) and ‘Music and More’ join the vocoding production wagon.
From the late 1990’s many standalone and software integrated vocoders have been produced
like the EVOC – 20 (Logic). Many other DAW’s such as Ableton also have built in vocoding
units that can be connected to MIDI controllers, keyboards etc. Once more another
advancement in vocoding. This has allowed vocoding to become even more portable and
accessible to musicians than it was before. Programmes such as Logic and Ableton have
become components in many live setups and now allows the musician to use a vocoder from
their computer screens.
9. VOCODING AND MIDI
When it comes to modern day music and music production you can’t really get a word in edgeways
without MIDI wanting to get involved and let you know what it’s all about. So of course it was only
natural the with the introduction of MIDI, vocoding would go yet another step further. By using MIDI
devices when using a vocoder, It allows the user to explore some interesting new functions. MIDI
keyboards can be used to change the pitch and key of the speech input of a vocoder, also allowing
you to play chords and melodies using your voice, which opens up a lot of opportunities to be
creative with a vocoder. Remember how the Dalek’s talk in Doctor Who? All achieved through the
use of a vocoder and a MIDI keyboard to control the pitches. However it could be argued that some
people rely on vocoding a little too much or use it as a cheat method for not actually being able to
sing… For example pop artist “WILL I AM”. Vocoding, at first was an interesting way to manipulate
your voice however could be argued that some artist rely on it a little too much and it somewhat
ruins the effect of vocoding. But what would’ve happened if MIDI hadn’t got its hands on vocoding?
Obviously vocoding and MIDI would still exist as separate functions, however, vocoding may have
been limited in its musical functions. Without MIDI using a vocoder just makes your voice sound
somewhat dalek-esque, which if sang through could achieve some musical qualities and interesting
sounds but the use of MIDI allows the user to hold notes and create melodies which are perhaps
otherwise unachievable. The popularity and easy use of MIDI has also increased the popularity of
vocoding and helped to make it more readily available to musicians.