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<li class="navelem"><a class="el" href="namespaceaudio__tools.html">audio_tools</a></li><li class="navelem"><a class="el" href="classaudio__tools_1_1_r2_r_output.html">R2ROutput</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> |
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<a href="#pro-methods">Protected Member Functions</a> |
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<a href="#pro-static-methods">Static Protected Member Functions</a> |
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<a href="#pro-attribs">Protected Attributes</a> |
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<a href="classaudio__tools_1_1_r2_r_output-members.html">List of all members</a> </div>
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<div class="title">R2ROutput Class Reference<div class="ingroups"><a class="el" href="group__main.html">Arduino Audio Tools</a> » <a class="el" href="group__io.html">IO</a></div></div> </div>
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<p>Output to R-2R DAC. You need to define the used digital pins in the configuration. Any number of bits is supported on max 2 channels. For a 4 bit single channel, you need to define 4 digital pins. see <a href="https://www.electronics-tutorials.ws/combination/r-2r-dac.html">https://www.electronics-tutorials.ws/combination/r-2r-dac.html</a> The default driver implementation uses Arduino digitalWrite(). You can provide your own optimized driver.
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<a href="classaudio__tools_1_1_r2_r_output.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="_r2_r_output_8h_source.html">R2ROutput.h</a>></code></p>
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Inheritance diagram for R2ROutput:</div>
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<img src="classaudio__tools_1_1_r2_r_output.png" usemap="#R2ROutput_map" alt=""/>
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<area href="classaudio__tools_1_1_audio_output.html" title="Abstract Audio Ouptut class." alt="AudioOutput" shape="rect" coords="120,56,230,80"/>
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<area href="classaudio__tools_1_1_print.html" alt="Print" shape="rect" coords="0,0,110,24"/>
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<area href="classaudio__tools_1_1_audio_info_support.html" title="Supports changes to the sampling rate, bits and channels." alt="AudioInfoSupport" shape="rect" coords="120,0,230,24"/>
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<area href="classaudio__tools_1_1_audio_info_source.html" title="Supports the subscription to audio change notifications." alt="AudioInfoSource" shape="rect" coords="240,0,350,24"/>
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</map>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:a727a24459787e1eeeb7a37ba888394a6"><td class="memItemLeft" align="right" valign="top"><a id="a727a24459787e1eeeb7a37ba888394a6"></a>
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virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__tools_1_1_audio_info_source.html#a727a24459787e1eeeb7a37ba888394a6">addNotifyAudioChange</a> (<a class="el" href="classaudio__tools_1_1_audio_info_support.html">AudioInfoSupport</a> &bi)</td></tr>
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<tr class="memdesc:a727a24459787e1eeeb7a37ba888394a6"><td class="mdescLeft"> </td><td class="mdescRight">Adds target to be notified about audio changes. <br /></td></tr>
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<tr class="separator:a727a24459787e1eeeb7a37ba888394a6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aececda97cff151859a8695d30896dd20"><td class="memItemLeft" align="right" valign="top"><a id="aececda97cff151859a8695d30896dd20"></a>
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virtual <a class="el" href="structaudio__tools_1_1_audio_info.html">AudioInfo</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__tools_1_1_audio_output.html#aececda97cff151859a8695d30896dd20">audioInfo</a> () override</td></tr>
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<tr class="memdesc:aececda97cff151859a8695d30896dd20"><td class="mdescLeft"> </td><td class="mdescRight">provides the actual input <a class="el" href="structaudio__tools_1_1_audio_info.html" title="Basic Audio information which drives e.g. I2S.">AudioInfo</a> <br /></td></tr>
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<tr class="separator:aececda97cff151859a8695d30896dd20"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a1c77cb3dbe910c765ea439d103bdcbb9"><td class="memItemLeft" align="right" valign="top"><a id="a1c77cb3dbe910c765ea439d103bdcbb9"></a>
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virtual <a class="el" href="structaudio__tools_1_1_audio_info.html">AudioInfo</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__tools_1_1_audio_info_support.html#a1c77cb3dbe910c765ea439d103bdcbb9">audioInfoOut</a> ()</td></tr>
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<tr class="memdesc:a1c77cb3dbe910c765ea439d103bdcbb9"><td class="mdescLeft"> </td><td class="mdescRight">provides the actual output <a class="el" href="structaudio__tools_1_1_audio_info.html" title="Basic Audio information which drives e.g. I2S.">AudioInfo</a>: this is usually the same as <a class="el" href="classaudio__tools_1_1_audio_info_support.html#ae0d5f156b0564368220fa8d328db3880" title="provides the actual input AudioInfo">audioInfo()</a> unless we use a transforming stream <br /></td></tr>
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<tr class="separator:a1c77cb3dbe910c765ea439d103bdcbb9"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a6ff0d6d1b0f3f9b652c9d5298ed0863c"><td class="memItemLeft" align="right" valign="top"><a id="a6ff0d6d1b0f3f9b652c9d5298ed0863c"></a>
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virtual int </td><td class="memItemRight" valign="bottom"><b>availableForWrite</b> () override</td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>begin</b> () override</td></tr>
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<tr class="separator:acba365cc28eb702040c382646cfb0a7a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a419d5bfacb0a1e5bf46b5fbd8d94f446"><td class="memItemLeft" align="right" valign="top"><a id="a419d5bfacb0a1e5bf46b5fbd8d94f446"></a>
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virtual bool </td><td class="memItemRight" valign="bottom"><b>begin</b> (<a class="el" href="structaudio__tools_1_1_audio_info.html">AudioInfo</a> info)</td></tr>
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<tr class="memitem:a3a6c62ef7bc619769616b711c07f821a"><td class="memItemLeft" align="right" valign="top"><a id="a3a6c62ef7bc619769616b711c07f821a"></a>
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bool </td><td class="memItemRight" valign="bottom"><b>begin</b> (<a class="el" href="classaudio__tools_1_1_r2_r_config.html">R2RConfig</a> c)</td></tr>
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<tr class="separator:a3a6c62ef7bc619769616b711c07f821a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:affd15675a5e391c34cccefa7181354bb"><td class="memItemLeft" align="right" valign="top"><a id="affd15675a5e391c34cccefa7181354bb"></a>
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virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__tools_1_1_audio_info_source.html#affd15675a5e391c34cccefa7181354bb">clearNotifyAudioChange</a> ()</td></tr>
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<tr class="memdesc:affd15675a5e391c34cccefa7181354bb"><td class="mdescLeft"> </td><td class="mdescRight">Deletes all change notify subscriptions. <br /></td></tr>
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<tr class="separator:affd15675a5e391c34cccefa7181354bb"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a3e49908f48ae1d60fd16b111dec6c415"><td class="memItemLeft" align="right" valign="top"><a id="a3e49908f48ae1d60fd16b111dec6c415"></a>
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<a class="el" href="classaudio__tools_1_1_r2_r_config.html">R2RConfig</a> </td><td class="memItemRight" valign="bottom"><b>defaultConfig</b> ()</td></tr>
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<tr class="memitem:adc34417a19a7b70626d19c41072d72a5"><td class="memItemLeft" align="right" valign="top"><a id="adc34417a19a7b70626d19c41072d72a5"></a>
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virtual void </td><td class="memItemRight" valign="bottom"><b>end</b> ()</td></tr>
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<tr class="separator:adc34417a19a7b70626d19c41072d72a5"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ad3aed50bc3b4459454ccb8c64f5ced5a"><td class="memItemLeft" align="right" valign="top"><a id="ad3aed50bc3b4459454ccb8c64f5ced5a"></a>
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virtual void </td><td class="memItemRight" valign="bottom"><b>flush</b> ()</td></tr>
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<tr class="separator:ad3aed50bc3b4459454ccb8c64f5ced5a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a33c6511baf83796cbba956c97935ae39"><td class="memItemLeft" align="right" valign="top"><a id="a33c6511baf83796cbba956c97935ae39"></a>
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virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__tools_1_1_audio_output.html#a33c6511baf83796cbba956c97935ae39">isDeletable</a> ()</td></tr>
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<tr class="memdesc:a33c6511baf83796cbba956c97935ae39"><td class="mdescLeft"> </td><td class="mdescRight">If true we need to release the related memory in the destructor. <br /></td></tr>
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<tr class="separator:a33c6511baf83796cbba956c97935ae39"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a475bc9908ea8a1d67e5cc1c1f67a71b2"><td class="memItemLeft" align="right" valign="top"><a id="a475bc9908ea8a1d67e5cc1c1f67a71b2"></a>
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bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__tools_1_1_audio_info_source.html#a475bc9908ea8a1d67e5cc1c1f67a71b2">isNotifyActive</a> ()</td></tr>
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<tr class="memdesc:a475bc9908ea8a1d67e5cc1c1f67a71b2"><td class="mdescLeft"> </td><td class="mdescRight">Checks if the automatic <a class="el" href="structaudio__tools_1_1_audio_info.html" title="Basic Audio information which drives e.g. I2S.">AudioInfo</a> update is active. <br /></td></tr>
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<tr class="separator:a475bc9908ea8a1d67e5cc1c1f67a71b2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a9b3baad8c612d81b96e46f84d7e97580"><td class="memItemLeft" align="right" valign="top"><a id="a9b3baad8c612d81b96e46f84d7e97580"></a>
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 </td><td class="memItemRight" valign="bottom"><b>operator bool</b> ()</td></tr>
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<tr class="separator:a9b3baad8c612d81b96e46f84d7e97580"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aa5b1cdb06807ff2dc37acbaff63410b9"><td class="memItemLeft" align="right" valign="top"><a id="aa5b1cdb06807ff2dc37acbaff63410b9"></a>
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virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__tools_1_1_audio_info_source.html#aa5b1cdb06807ff2dc37acbaff63410b9">removeNotifyAudioChange</a> (<a class="el" href="classaudio__tools_1_1_audio_info_support.html">AudioInfoSupport</a> &bi)</td></tr>
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<tr class="memdesc:aa5b1cdb06807ff2dc37acbaff63410b9"><td class="mdescLeft"> </td><td class="mdescRight">Removes a target in order not to be notified about audio changes. <br /></td></tr>
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<tr class="separator:aa5b1cdb06807ff2dc37acbaff63410b9"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:acbaca7240bc555603b0da5b7ca11ce10"><td class="memItemLeft" align="right" valign="top"><a id="acbaca7240bc555603b0da5b7ca11ce10"></a>
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virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__tools_1_1_audio_output.html#acbaca7240bc555603b0da5b7ca11ce10">setAudioInfo</a> (<a class="el" href="structaudio__tools_1_1_audio_info.html">AudioInfo</a> newInfo) override</td></tr>
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<tr class="memdesc:acbaca7240bc555603b0da5b7ca11ce10"><td class="mdescLeft"> </td><td class="mdescRight">Defines the input <a class="el" href="structaudio__tools_1_1_audio_info.html" title="Basic Audio information which drives e.g. I2S.">AudioInfo</a>. <br /></td></tr>
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<tr class="separator:acbaca7240bc555603b0da5b7ca11ce10"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a909f118906f9cf7024baae224dcd90a7"><td class="memItemLeft" align="right" valign="top"><a id="a909f118906f9cf7024baae224dcd90a7"></a>
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void </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__tools_1_1_audio_info_source.html#a909f118906f9cf7024baae224dcd90a7">setNotifyActive</a> (bool flag)</td></tr>
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<tr class="memdesc:a909f118906f9cf7024baae224dcd90a7"><td class="mdescLeft"> </td><td class="mdescRight">Deactivate/Reactivate automatic <a class="el" href="structaudio__tools_1_1_audio_info.html" title="Basic Audio information which drives e.g. I2S.">AudioInfo</a> updates: (default is active) <br /></td></tr>
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<tr class="separator:a909f118906f9cf7024baae224dcd90a7"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a7597ef706dd1aa590903ce9e095db20a"><td class="memItemLeft" align="right" valign="top"><a id="a7597ef706dd1aa590903ce9e095db20a"></a>
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size_t </td><td class="memItemRight" valign="bottom"><b>write</b> (const uint8_t *data, size_t len) override</td></tr>
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<tr class="memitem:adffba128cba62b029746648f6946945c"><td class="memItemLeft" align="right" valign="top"><a id="adffba128cba62b029746648f6946945c"></a>
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virtual size_t </td><td class="memItemRight" valign="bottom"><b>write</b> (uint8_t ch) override</td></tr>
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<tr class="memitem:ad89418aeb557f65a8f1a0aed755633b1"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__tools_1_1_audio_output.html#ad89418aeb557f65a8f1a0aed755633b1">writeSilence</a> (size_t len)</td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-methods"></a>
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Protected Member Functions</h2></td></tr>
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<tr class="memitem:a6a9a665a387a8c4fbf7fed14bbbfc093"><td class="memItemLeft" align="right" valign="top"><a id="a6a9a665a387a8c4fbf7fed14bbbfc093"></a>
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void </td><td class="memItemRight" valign="bottom"><b>notifyAudioChange</b> (<a class="el" href="structaudio__tools_1_1_audio_info.html">AudioInfo</a> info)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>writeValue</b> (int channel)</td></tr>
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template<typename T > </td></tr>
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<tr class="memitem:ab2bf50ea3679bb3164b9ed9e6e5c7418"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><b>writeValueT</b> (int channel)</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-static-methods"></a>
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Static Protected Member Functions</h2></td></tr>
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static void </td><td class="memItemRight" valign="bottom"><b>r2r_timer_callback</b> (void *ptr)</td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-attribs"></a>
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Protected Attributes</h2></td></tr>
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<tr class="memitem:aa66a35e5edf58ce00047afcd1d4f455e"><td class="memItemLeft" align="right" valign="top"><a id="aa66a35e5edf58ce00047afcd1d4f455e"></a>
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int </td><td class="memItemRight" valign="bottom"><b>_timeout</b> = 10</td></tr>
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<tr class="memitem:a73e809d724d25cd0c28533ee9b7a598f"><td class="memItemLeft" align="right" valign="top"><a id="a73e809d724d25cd0c28533ee9b7a598f"></a>
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<a class="el" href="classaudio__tools_1_1_n_buffer.html">NBuffer</a>< uint8_t > </td><td class="memItemRight" valign="bottom"><b>buffer</b> {DEFAULT_BUFFER_SIZE, 0}</td></tr>
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<a class="el" href="structaudio__tools_1_1_audio_info.html">AudioInfo</a> </td><td class="memItemRight" valign="bottom"><b>cfg</b></td></tr>
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bool </td><td class="memItemRight" valign="bottom"><b>is_active</b> = false</td></tr>
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<tr class="separator:a407c3efba665d276a38229f905bef352"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aeaba7fcedcb403536c79ee7f04de17fc"><td class="memItemLeft" align="right" valign="top"><a id="aeaba7fcedcb403536c79ee7f04de17fc"></a>
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bool </td><td class="memItemRight" valign="bottom"><b>is_notify_active</b> = true</td></tr>
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<tr class="memitem:ad35c4e2ef458c36e8d36676958cc9cd3"><td class="memItemLeft" align="right" valign="top"><a id="ad35c4e2ef458c36e8d36676958cc9cd3"></a>
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<a class="el" href="classaudio__tools_1_1_vector.html">Vector</a>< <a class="el" href="classaudio__tools_1_1_audio_info_support.html">AudioInfoSupport</a> * > </td><td class="memItemRight" valign="bottom"><b>notify_vector</b></td></tr>
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<tr class="memitem:a29aa1c1cfbf4a4f1bda1ecf36ef172dc"><td class="memItemLeft" align="right" valign="top"><a id="a29aa1c1cfbf4a4f1bda1ecf36ef172dc"></a>
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<a class="el" href="classaudio__tools_1_1_r2_r_config.html">R2RConfig</a> </td><td class="memItemRight" valign="bottom"><b>rcfg</b></td></tr>
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<tr class="memitem:a871a88d476269c96439f02adc0ded977"><td class="memItemLeft" align="right" valign="top"><a id="a871a88d476269c96439f02adc0ded977"></a>
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<a class="el" href="classaudio__tools_1_1_timer_alarm_repeating.html">TimerAlarmRepeating</a> </td><td class="memItemRight" valign="bottom"><b>timer</b></td></tr>
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<a class="el" href="classaudio__tools_1_1_single_buffer.html">SingleBuffer</a>< uint8_t > </td><td class="memItemRight" valign="bottom"><b>tmp</b> {MAX_SINGLE_CHARS}</td></tr>
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<tr class="memitem:a5c8bfed099f70e8b41e7ddcd5578fedb"><td class="memItemLeft" align="right" valign="top"><a id="a5c8bfed099f70e8b41e7ddcd5578fedb"></a>
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int </td><td class="memItemRight" valign="bottom"><b>tmpPos</b> = 0</td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Output to R-2R DAC. You need to define the used digital pins in the configuration. Any number of bits is supported on max 2 channels. For a 4 bit single channel, you need to define 4 digital pins. see <a href="https://www.electronics-tutorials.ws/combination/r-2r-dac.html">https://www.electronics-tutorials.ws/combination/r-2r-dac.html</a> The default driver implementation uses Arduino digitalWrite(). You can provide your own optimized driver. </p>
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<dl class="section author"><dt>Author</dt><dd>Phil Schatzmann </dd></dl>
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<dl class="section copyright"><dt>Copyright</dt><dd>GPLv3 </dd></dl>
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</div><h2 class="groupheader">Member Function Documentation</h2>
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<a id="ad89418aeb557f65a8f1a0aed755633b1"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ad89418aeb557f65a8f1a0aed755633b1">◆ </a></span>writeSilence()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="mlabels">
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<tr>
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<td class="mlabels-left">
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<table class="memname">
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<tr>
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<td class="memname">virtual void writeSilence </td>
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<td>(</td>
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<td class="paramtype">size_t </td>
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<td class="paramname"><em>len</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</td>
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<td class="mlabels-right">
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">virtual</span><span class="mlabel">inherited</span></span> </td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Writes n 0 values (= silence) </p><dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">len</td><td></td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<hr/>The documentation for this class was generated from the following file:<ul>
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<li>src/AudioLibs/<a class="el" href="_r2_r_output_8h_source.html">R2ROutput.h</a></li>
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</ul>
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