Phonon Republic ︰ phononPi 【聲子派】是何物?

縱使『理念』之『純粹』︰

之前我們在《走進音樂世界!!》一文中 介紹過英國劍橋大學 Dr . Sam Aaron 博士,Sonic π 的作者,他的『音樂程式』理念是︰

那兒並沒有錯誤

There are no mistakes
Before we start, let me just give you one piece of advice I’ve learned over my years of live coding with music – there are no mistakes, only opportunities. This is something I’ve often heard in relation to jazz but it works equally well with live coding. No matter how experienced you are – from a complete beginner to a seasoned Algoraver, you’ll run some code that has a completely unexpected outcome. It might sound insanely cool – in which case run with it. However, it might sound totally jarring and out of place. It doesn’t matter that it happened – what matters is what you do next with it. Take the sound, manipulate it and morph it into something awesome. The crowd will go wild.

現今『 Sonic π 』2.0 版已經正式發布,據聞將用於英國 KS3 ── 十一歲到十三歲 ── 的『程式語言』教育之中。它的主要『學習目標』是︰

Computer Science concepts:

Sequencing
Debugging
Iteration
Conditionals
Data Structures
Algorithms
Functions
Concurrency

計算機科學概念

編序
除錯
疊代
條件轉移
資料結構
演算法
函式
並行性

Sonic Pi(在 raspberrypi)_069

學習』需是要『溫故知新』,須能夠『專心致志』,方才可『精博通達』。就讓我們藉著『音樂』去悠遊『程式』一番,再次發現自然裡『聲音的宇宙』。

─── 摘自《 Sonic π 知音?!

Sonic Pi Essentials

Learn to code musical masterpieces with the creator of Sonic Pi in our best Essentials e-book yet!

sonicpi

Sam Aaron, the creator of Sonic Pi, has written this book to complement the software’s built-in tutorial and to help you jump-start your live-coding career. The book is packed with fun, instantly rewarding examples designed to highlight many of the amazing things Sonic Pi enables you to do. By the time you’ve finished you’ll be able to code up some phat bass, sparkling synth leads and start practicing for your first live-coding gig…

Live code and craft amazing sounds across 10 chapters, including:

  • Master live loops
  • Build drum breaks
  • Compose your own melodies
  • Make random riffs and loops
  • Learn to shape and sculpt sounds
  • and much, much more…

 

,實際未必能創造『需求』 Needs and Wants 也。若說『科技』來自於『人性』── 需要與欲望 ──,總也得『正名』乎??故說此『聲子派』之要求耶!!豈能不為『聲』之於『耳』而立傳呢︰

聲子

聲子Phonon)是晶體晶體結構集體激發的準粒子化學勢為零 ,服從玻色-愛因斯坦統計,是一種玻色子。聲子本身並不具有物理動量,但是攜帶有準動量 ℏ q {\displaystyle \hbar \mathbf {q} } \hbar \mathbf{q},並具有能量 ℏ ω {\displaystyle \hbar \omega } \hbar \omega(其中 ℏ {\displaystyle \hbar } \hbar 為約化普朗克常數)。根據南部-戈德斯通定理,任何連續性整體對稱性的自發破缺,必然對應一個零質量的玻色子。聲子就是平移對稱性被晶格的點陣結構自發破缺以後對應的玻色子。聲子與電子的相互作用,是導致BCS超導的關鍵機制。

Phonon

In physics, a phonon is a collective excitation in a periodic, elastic arrangement of atoms or molecules in condensed matter, like solids and some liquids. Often designated a quasiparticle,[1] it represents an excited state in the quantum mechanical quantization of the modes of vibrations of elastic structures of interacting particles.

Phonons play a major role in many of the physical properties of condensed matter, like thermal conductivity and electrical conductivity. The study of phonons is an important part of condensed matter physics.

The concept of phonons was introduced in 1932 by Soviet physicist Igor Tamm. The name phonon comes from the Greek word φωνή (phonē), which translates to sound or voice because long-wavelength phonons give rise to sound. Shorter-wavelength higher-frequency phonons are responsible for the majority of the thermal capacity of solids.

Definition

A phonon is a quantum mechanical description of an elementary vibrational motion in which a lattice of atoms or molecules uniformly oscillates at a single frequency.[2] In classical mechanics this designates a normal mode of vibration. Normal modes are important because any arbitrary lattice vibration can be considered to be a superposition of these elementary vibration modes (cf. Fourier analysis). While normal modes are wave-like phenomena in classical mechanics, phonons have particle-like properties too, in a way related to the wave–particle duality of quantum mechanics.

 

然而『正名』之事,不必談及 □ □ 硬體在內 inside ,跑的是 ○ ○ 作業系統 OS 。但考之以實際功能、效用而已矣。因是『聲子派』之名義乃是 Sonic Pi 能運行良好的聲音環境;至少可及於 Pure Data 以及 jackd2 種種應用的軟硬體系統。