(2014-05-02) [Python Nordeste] AudioLazy Band Show

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http://2014.pythonnordeste.org/

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https://gist.github.com/danilobellini/8313126

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(2014-05-02) [Python Nordeste] AudioLazy Band Show

  1. 1. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini AudioLazy Band ShowAudioLazy Band Show Danilo de Jesus da Silva BelliniDanilo de Jesus da Silva Bellini (AudioLazy developer)(AudioLazy developer) https://github.com/danilobellini/audiolazyhttps://github.com/danilobellini/audiolazy https://pypi.python.org/pypi/audiolazyhttps://pypi.python.org/pypi/audiolazy
  2. 2. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini AudioLazyAudioLazy ● DSP (Digital Signal Processing) – Análise – Síntese – Processamento ● Expressividade de código ● Tempo real Documentação (Sphinx) http://pythonhosted.org/audiolazy Python 2.7 Python 2.7 e 3.2+! e 3.2+! 82% branch coverage 11k+ tests (2k+ por ambiente) tox + py.test Cpython 2.7/3.2/3.3/3.4 PyPy TRAVIS CI!
  3. 3. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini ProcessamentoProcessamento ● Filtragem ● Distorção AudioLazy utiliza PyAudio (PortAudio) Funciona com o JACK?
  4. 4. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini Outros efeitosOutros efeitos ● Flanger ● Phaser ● Wah ● Robotização de voz ● Delay ● Reverb ● Remoção de ruído ... Pedaleira de guitarra?
  5. 5. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellinihttps://github.com/RicardoBoccoliGallego/DigitalPedalBoard PedaleiraPedaleira feita com afeita com a AudioLazyAudioLazy por 4por 4 alunos daalunos da Poli-USPPoli-USP
  6. 6. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini AnáliseAnálise ● Taxa de cruzamento no zero ● DFT (Fourier) ● AMDF ● LPC ● ... FormantesFormantes
  7. 7. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini
  8. 8. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini SínteseSíntese ● Modulação – Ring/anel – AM – FM ● Síntese aditiva ● Síntese subtrativa ● Formas de onda – Senoides – Sawtooth – Table lookup ● Ruído – Branco/uniforme – Gaussiano ● Exemplos – FM: mcfm.py – Subtrativa: formants.py – Aditiva com senoides: shepard.py keyboard.py: GGGSUGSUG LLLPUTSUG
  9. 9. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini Filtros linearesFiltros lineares ● Síntese subtrativa (e.g. play_bach_choral.py) ● Comb, ressonador, passa-baixas, passa-altas, … ● Wah, knob guitarra (passa-baixas RC), ... filt = 1./9. * (4 - z ** -2) / (1 + .8 * z ** -1 + .4 * z ** -2) filt.zplot().savefig("zeropolo.pdf") fcomb = comb.fb(25, .95) fcomb.plot().savefig("plot-comb.pdf") filt = 1./9. * (4 - z ** -2) / (1 + .8 * z ** -1 + .4 * z ** -2) filt.zplot().savefig("zeropolo.pdf") fcomb = comb.fb(25, .95) fcomb.plot().savefig("plot-comb.pdf") 1 2 1 2
  10. 10. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini Imagens feitas com a AudioLazyImagens feitas com a AudioLazy
  11. 11. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini
  12. 12. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini
  13. 13. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini
  14. 14. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini
  15. 15. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini
  16. 16. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini
  17. 17. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini
  18. 18. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini
  19. 19. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini
  20. 20. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini
  21. 21. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini AudioLazy + Matplotlib + “hipsterplot”
  22. 22. AudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobelliniAudioLazy Band Show – 2014-05-02 – Danilo J. S. Bellini – @danilobellini https://github.com/dhttps://github.com/danilobellini/audiolazyanilobellini/audiolazy Obrigado!Obrigado! Perguntas?Perguntas?

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