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<link rel="modulepreload" href="/docs/audio-course/pr_243/en/_app/immutable/chunks/MermaidChart.svelte_svelte_type_style_lang.787e08e6.js"><!-- HEAD_svelte-u9bgzb_START --><meta name="hf:doc:metadata" content="{&quot;title&quot;:&quot;Unit 2. A gentle introduction to audio applications&quot;,&quot;local&quot;:&quot;unit-2-a-gentle-introduction-to-audio-applications&quot;,&quot;sections&quot;:[],&quot;depth&quot;:1}"><!-- HEAD_svelte-u9bgzb_END --> <p></p> <div class="items-center shrink-0 min-w-[100px] max-sm:min-w-[50px] justify-end ml-auto flex" style="float: right; margin-left: 10px; display: inline-flex; position: relative; z-index: 10;"><div class="inline-flex rounded-md max-sm:rounded-sm"><button class="inline-flex items-center gap-1 h-7 max-sm:h-7 px-2 max-sm:px-1.5 text-sm font-medium text-gray-800 border border-r-0 rounded-l-md max-sm:rounded-l-sm border-gray-200 bg-white hover:shadow-inner dark:border-gray-850 dark:bg-gray-950 dark:text-gray-200 dark:hover:bg-gray-800" aria-live="polite"><span class="inline-flex items-center justify-center rounded-md p-0.5 max-sm:p-0 hover:text-gray-800 dark:hover:text-gray-200"><svg class="sm:size-3.5 size-3" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg></span> <span>Copy page</span></button> <button class="inline-flex items-center justify-center w-6 max-sm:w-5 h-7 max-sm:h-7 disabled:pointer-events-none text-sm text-gray-500 hover:text-gray-700 dark:hover:text-white rounded-r-md max-sm:rounded-r-sm border border-l transition border-gray-200 bg-white hover:shadow-inner dark:border-gray-850 dark:bg-gray-950 dark:text-gray-200 dark:hover:bg-gray-800" aria-haspopup="menu" aria-expanded="false" aria-label="Open copy menu"><svg class="transition-transform text-gray-400 overflow-visible sm:size-3.5 size-3 rotate-0" width="1em" height="1em" viewBox="0 0 12 7" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M1 1L6 6L11 1" stroke="currentColor"></path></svg></button></div> </div> <h1 class="relative group"><a id="unit-2-a-gentle-introduction-to-audio-applications" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#unit-2-a-gentle-introduction-to-audio-applications"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Unit 2. A gentle introduction to audio applications</span></h1> <p data-svelte-h="svelte-vj6e2">Welcome to the second unit of the Hugging Face audio course! Previously, we explored the fundamentals of audio data
and learned how to work with audio datasets using the 🤗 Datasets and 🤗 Transformers libraries. We discussed various
concepts such as sampling rate, amplitude, bit depth, waveform, and spectrograms, and saw how to preprocess data to
prepare it for a pre-trained model.</p> <p data-svelte-h="svelte-qbuu6d">At this point you may be eager to learn about the audio tasks that 🤗 Transformers can handle, and you have all the foundational
knowledge necessary to dive in! Let’s take a look at some of the mind-blowing audio task examples:</p> <ul data-svelte-h="svelte-1bxzjf0"><li><strong>Audio classification</strong>: easily categorize audio clips into different categories. You can identify whether a recording
is of a barking dog or a meowing cat, or what music genre a song belongs to.</li> <li><strong>Automatic speech recognition</strong>: transform audio clips into text by transcribing them automatically. You can get a text
representation of a recording of someone speaking, like “How are you doing today?“. Rather useful for note taking!</li> <li><strong>Speaker diarization</strong>: Ever wondered who’s speaking in a recording? With 🤗 Transformers, you can identify which speaker
is talking at any given time in an audio clip. Imagine being able to differentiate between “Alice” and “Bob” in a recording
of them having a conversation.</li> <li><strong>Text to speech</strong>: create a narrated version of a text that can be used to produce an audio book, help with accessibility,
or give a voice to an NPC in a game. With 🤗 Transformers, you can easily do that!</li></ul> <p data-svelte-h="svelte-r8m8hy">In this unit, you’ll learn how to use pre-trained models for some of these tasks using the <code>pipeline()</code> function from 🤗 Transformers.
Specifically, we’ll see how the pre-trained models can be used for audio classification, automatic speech recognition and audio generation.
Let’s get started!</p> <a class="!text-gray-400 !no-underline text-sm flex items-center not-prose mt-4" href="https://github.com/huggingface/audio-transformers-course/blob/main/chapters/en/chapter2/introduction.mdx" target="_blank"><svg class="mr-1" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M31,16l-7,7l-1.41-1.41L28.17,16l-5.58-5.59L24,9l7,7z"></path><path d="M1,16l7-7l1.41,1.41L3.83,16l5.58,5.59L8,23l-7-7z"></path><path d="M12.419,25.484L17.639,6.552l1.932,0.518L14.351,26.002z"></path></svg> <span data-svelte-h="svelte-zjs2n5"><span class="underline">Update</span> on GitHub</span></a> <p></p>
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