http://wiki.nosdigitais.teia.org.br/index.php?action=history&feed=atom&title=PortAudio 2026-04-21T15:22:19Z Histórico de revisões para esta página neste wiki MediaWiki 1.39.0 http://wiki.nosdigitais.teia.org.br/index.php?title=PortAudio&diff=24202&oldid=prev 2013-07-01T22:01:38Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="pt-BR"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Edição anterior</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Edição das 19h01min de 1 de julho de 2013</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l4">Linha 4:</td> <td colspan="2" class="diff-lineno">Linha 4:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Interessa saber que ele torna o acesso ao dispositivo de áudio transparente e descomplicado: basta concentrar-se na escrita da ''função de callback'' que é chamada pelo PortAudio quando o dispositivo de áudio estiver com fome.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Interessa saber que ele torna o acesso ao dispositivo de áudio transparente e descomplicado: basta concentrar-se na escrita da ''função de callback'' que é chamada pelo PortAudio quando o dispositivo de áudio estiver com fome.</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Uma alternativa ao PortAudio é RtAudio, uma classe em C++, bastante simples e interessante.</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Hello, World! ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Hello, World! ==</div></td></tr> </table>

VilsonVieira http://wiki.nosdigitais.teia.org.br/index.php?title=PortAudio&diff=24150&oldid=prev 2013-07-01T20:57:30Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="pt-BR"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Edição anterior</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Edição das 17h57min de 1 de julho de 2013</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l22">Linha 22:</td> <td colspan="2" class="diff-lineno">Linha 22:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Ou: https://gist.github.com/automata/5904558</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Ou: https://gist.github.com/automata/5904558</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Lab <del style="font-weight: bold; text-decoration: none;">MacambiraAudioArt</del>]][[Category:audioArt]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Lab <ins style="font-weight: bold; text-decoration: none;">Macambira</ins>]][[Category:audioArt]]</div></td></tr> </table>

VilsonVieira http://wiki.nosdigitais.teia.org.br/index.php?title=PortAudio&diff=24148&oldid=prev 2013-07-01T20:57:10Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="pt-BR"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Edição anterior</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Edição das 17h57min de 1 de julho de 2013</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l22">Linha 22:</td> <td colspan="2" class="diff-lineno">Linha 22:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Ou: https://gist.github.com/automata/5904558</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Ou: https://gist.github.com/automata/5904558</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Lab <del style="font-weight: bold; text-decoration: none;">Macambira, AudioArt</del>]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Lab <ins style="font-weight: bold; text-decoration: none;">MacambiraAudioArt]][[Category:audioArt</ins>]]</div></td></tr> </table>

VilsonVieira http://wiki.nosdigitais.teia.org.br/index.php?title=PortAudio&diff=24147&oldid=prev 2013-07-01T20:56:22Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="pt-BR"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Edição anterior</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Edição das 17h56min de 1 de julho de 2013</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l22">Linha 22:</td> <td colspan="2" class="diff-lineno">Linha 22:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Ou: https://gist.github.com/automata/5904558</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Ou: https://gist.github.com/automata/5904558</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Lab Macambira]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Lab Macambira<ins style="font-weight: bold; text-decoration: none;">, AudioArt</ins>]]</div></td></tr> </table>

VilsonVieira http://wiki.nosdigitais.teia.org.br/index.php?title=PortAudio&diff=24145&oldid=prev 2013-07-01T20:55:52Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="pt-BR"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Edição anterior</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Edição das 17h55min de 1 de julho de 2013</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l19">Linha 19:</td> <td colspan="2" class="diff-lineno">Linha 19:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>     gcc -lasound -lm -lpthread -pthread -lportaudio -o saw saw.c /usr/lib/libportaudio.so</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>     gcc -lasound -lm -lpthread -pthread -lportaudio -o saw saw.c /usr/lib/libportaudio.so</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>     ./saw</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>     ./saw</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Ou: https://gist.github.com/automata/5904558</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Lab Macambira]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Lab Macambira]]</div></td></tr> </table>

VilsonVieira http://wiki.nosdigitais.teia.org.br/index.php?title=PortAudio&diff=24138&oldid=prev 2013-07-01T20:49:03Z

<p>Nova página: == Intro == PortAudio é uma biblioteca que facilita a construção de programas &#039;&#039;multi-plataforma&#039;&#039; para processamento de áudio. Seu programa funcionará em vários hosts: ALSA, OS...</p> <p><b>Página nova</b></p><div>== Intro ==<br /> <br /> PortAudio é uma biblioteca que facilita a construção de programas ''multi-plataforma'' para processamento de áudio. Seu programa funcionará em vários hosts: ALSA, OSS, CoreAudio (iOS), JACK...<br /> <br /> Interessa saber que ele torna o acesso ao dispositivo de áudio transparente e descomplicado: basta concentrar-se na escrita da ''função de callback'' que é chamada pelo PortAudio quando o dispositivo de áudio estiver com fome.<br /> <br /> == Hello, World! ==<br /> <br /> Para compilar, tenha o PortAudio instalado. No Ubuntu, basta instalar o pacote, mas caso deseje habilitar flags para debug, é interessante compilar do zero o PortAudio e definir algumas flags (habilitando bindings C++, host jack e informações de debug):<br /> <br /> cd portaudio/<br /> ./configure --with-jack --enable-cxx --enable-debug-output --prefix=/usr<br /> make -j 3<br /> sudo make install <br /> <br /> Comece por um arquivo de exemplo:<br /> <br /> cp portaudio/examples/paex_saw.c saw.c<br /> gcc -lasound -lm -lpthread -pthread -lportaudio -o saw saw.c /usr/lib/libportaudio.so<br /> ./saw<br /> <br /> [[Category:Lab Macambira]]</div>

VilsonVieira