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 <span id="projectnumber">2.5.4</span>
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<div class="textblock"><p>It is possible to use the synthesizer object without creating an audio driver. This is desirable if the application using FluidSynth manages the audio output itself. The synthesizer has several API functions that can be used to obtain the audio output:</p>
<p><a class="el" href="group__audio__rendering.html#ga6b88528d1ea6322582314197488afab7" title="Synthesize a block of 16 bit audio samples to audio buffers.">fluid_synth_write_s16()</a> fills two buffers (left and right channel) with samples coded as signed 16 bits (the endian-ness is machine dependent). <a class="el" href="group__audio__rendering.html#ga7db368da2d74a73d05feaff4a6bb1da4" title="Synthesize a block of floating point audio samples to audio buffers.">fluid_synth_write_float()</a> fills a left and right audio buffer with 32 bits floating point samples. The function <a class="el" href="group__audio__rendering.html#gaf41e26b153a095dbc4248e9df4f3ad46" title="Synthesize floating point audio to stereo audio channels (implements the default interface fluid_audi...">fluid_synth_process()</a> is the generic interface for synthesizing audio, which is also capable of multi channel audio output. </p>
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