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<body>
  <div class="bubble-container"></div>
  <div class="heading-container">
    <h1 class="heading">Audio Formats*</h1>
    <div class="line"></div>
    <p class="description">Audio formats can be categorized into 3 distinct groups. These are Uncompressed, Lossless,
      and Lossy files. Also, it helps to know the term PCM and how it applies to the different file types.</p>
  </div>
  <div class="arrow" onclick="scrollToContent()"></div>

  <div class="content" id="content">
    <h2>Bitrates</h2>
    <p>A bitrate is the number of bits conveyed or transferred in a unit of time. When talking about music formats,
      bitrate is used in kilobits per second (kbps). When comparing files with different bitrates (of the same song),
      the file with the higher bitrate has the higher quality. For example, an MP3 320kbps (CBR) file transfers 320
      kilobits per second.</p>
    <img src="/assets/wU6PwQBqX8araSHVPqU5fN-970-80.jpg" alt="Bitrates Example"
      style="max-width: 90%; height: auto; display: block; margin: 20px auto; box-shadow: 0 0 15px #32b9e2; padding: 0px; background-color: #ffffff00; border-radius: 10px;">

    <h2>Uncompressed Lossless</h2>
    <p>Uncompressed lossless formats store all of the original recorded data. Since silence is given the same number of
      bits per second as sound is, uncompressed lossless files are huge. The main uncompressed lossless format is
      pulse-code modulation (PCM). For example:</p>
    <ul>
      <li>WAV (PCM) (used on Windows)</li>
      <li>AIFF (PCM) (used on macOS)</li>
      <div style="display: flex; justify-content: center; gap: 20px; flex-wrap: wrap;">
        <img src="/assets/2019-09-wav.jpeg" alt="UnCompressed Lossless Example"
          style="max-width: 25%; height: 25%; display: block; box-shadow: 0 0 15px rgba(255, 255, 255, 0.8); border-radius: 10px;">
        <img src="/assets/2019-09-Signal_Sampling-1024x664.png" alt="Signal Sampling Example"
          style="max-width: 60%; height: auto; display: block; box-shadow: 0 0 15px rgba(255, 255, 255, 0.8); padding: 20px; background-color: #fff; border-radius: 10px;">
      </div>
    </ul>

    <h2>Compressed Lossless</h2>
    <p>Compressed lossless formats store all of the original recorded data in less space than uncompressed lossless
      formats by compressing the data. By giving silence almost no bits per second and compressing sound, a compressed
      lossless file is usually half as big as the same song stored in an uncompressed lossless file.</p>
    <p>Since both uncompressed lossless formats and compressed lossless formats retain all the data from the original
      recording, they can be transcoded between each other without a loss in quality. For example:</p>
    <ul>
      <li>Free Lossless Audio Codec (FLAC)</li>
      <li>Apple Lossless Audio Codec (ALAC)</li>
      <li>Monkey's Audio (APE)</li>
    </ul>
    <img src="/assets/2019-09-2000px-Mpeg4sls.svg_-910x1024.png" alt="Compressed Lossless Example"
      style="max-width: 60%; height: auto; display: block; margin: 20px auto; box-shadow: 0 0 15px rgba(255, 255, 255, 0.8); padding: 20px; background-color: #fff; border-radius: 10px;">

    <h2>Lossy</h2>
    <p>Lossy formats are always compressed. Lossy formats have smaller file sizes than both uncompressed lossless
      formats and compressed lossless formats because they remove some of the original data. Usually the removed data is
      in the higher frequencies that humans can't hear, however, there can be obvious audible differences between lossy
      formats and lossless formats.</p>
    <p>Lossy formats CANNOT be transcoded into any other lossy format without losing more quality. It CANNOT be
      transcoded into lossless either, because it wouldn't be a true lossless file when the source medium is already
      lossy. Examples of lossy formats include:</p>
    <ul>
      <li>MPEG Layer 3 Audio (MP3)</li>
      <li>Advanced Audio Encoding (AAC)</li>
      <li>Windows Media Audio (WMA)</li>
      <li>Dolby Digital Audio Codec 3 (AC3)</li>
      <li>DTS Coherent Acoustics Codec (DTS)</li>
      <img src="/assets/2019-09-Mp3.svg_-1024x517.png" alt="Lossy Example"
        style="max-width: 30%; height: auto; display: block; margin: 20px auto; box-shadow: 0 0 35px #03b2e7; padding: 20px; background-color: #fff; border-radius: 10px;">
    </ul>

    <h2>File size</h2>
    <p>How big your audio file will be depends on the length of the audio as well as its bitrate. When the files are
      stored on disk, they take up a certain amount of space, the actual storage space needed is measured in bytes (or
      megabytes/gigabytes for larger files).</p>
    <ul>
      <li>Uncompressed Lossless — WAV (PCM): 34.3 MB</li>
      <li>Compressed Lossless — FLAC: 25.75 MB (25% compressed)</li>
      <li>Lossy — MP3 320 (CBR): 7.78 MB (78% compressed)</li>
      <img src="/assets/2019-09-actuator-arm-close-up-data-33278-1024x683.jpg" alt="Lossy Example"
        style="max-width: 50%; height: auto; display: block; margin: 20px auto; box-shadow: 0 0 15px rgba(255, 255, 255, 0.8); padding: 0px; background-color: #fff; border-radius: 10px;">
    </ul>

    <h2>Transparency</h2>
    <p>Transparency is a term used to describe the audible quality of a lossy music file. A lossy file is considered
      transparent if the average human cannot tell the difference between the lossy file and a lossless file of the same
      song by just listening to both without knowing which file is which. For most people, MP3 192kbps (CBR) is
      considered transparent.</p>
    <div style="display: flex; justify-content: center; gap: 20px; flex-wrap: wrap;">
      <img src="/assets/2019-09-black-connection-device-6320-1024x683.jpg" alt="Transparency Example"
        style="max-width: 35%; height: auto; display: block; margin: 20px auto; box-shadow: 0 0 35px #02bcf5; padding: 0px; background-color: #ffffff00; border-radius: 10px;">
      <img src="/assets/th.jfif" alt="Casual Listener"
        style="max-width: 60%; height: auto; display: block; box-shadow: 0 0 15px rgba(255, 255, 255, 0.8); padding: 0px; background-color: #fff; border-radius: 10px;">
    </div>

    <h2>Spatial Audio</h2>

    <div class="spatial-audio-section">
      <h3 class="spatial-audio-heading">Dolby Atmos</h3>
      <p class="spatial-audio-content">Dolby Atmos (EC-3/EAC3-JOC) is an advanced audio technology that allows sound to
        be precisely placed and moved in three-dimensional space, including overhead. It extends the concept of surround
        sound with added height channels, providing a more immersive audio experience.</p>
      <li>Object-based audio format, where sound elements can be placed in any position within a 3D space.</li>
      <li>Provides a dynamic and lifelike sound experience, enhancing the feeling of being inside the action.</li>
      <li>Supported in theaters, home theaters, soundbars, headphones, and even mobile devices.</li>
    </div>
    <img src="/assets/da-flexconnect-hero.webp" alt="Dolby Atmos Example"
      style="max-width: 70%; height: auto; display: block; margin: 20px auto; box-shadow: 0 0 15px rgba(255, 255, 255, 0.8); padding: 0px; background-color: #ffffffe3; border-radius: 10px;">


    <div class="spatial-audio-section">
      <h3 class="spatial-audio-heading">Dolby Digital</h3>
      <p class="spatial-audio-content">Dolby Digital (also known as AC-3/AC-4 IMS) is a digital audio coding standard
        that compresses audio data to reduce the amount of space needed for storage and transmission. It is commonly
        used in DVDs, Blu-rays, and broadcast television.</p>
      <li>Supports up to 5.1 channels of audio (five full-bandwidth channels and one low-frequency effects channel).
      </li>
      <li>Provides high-quality sound with efficient compression.</li>
      <li>Widely used in broadcast media.</li>
    </div>

    <div class="spatial-audio-section">
      <h3 class="spatial-audio-heading">Sony 360 Reality Audio</h3>
      <p class="spatial-audio-content">Sony 360 Reality Audio (MHM1/MHA1) is an immersive audio format that uses
        object-based spatial audio technology to create a 360-degree sound field. This format aims to recreate the
        experience of being at a live concert or in a recording studio with sound coming from all directions.</p>
      <li>Uses object-based audio to place individual sound sources around the listener in a 3D space.</li>
      <li>Provides an immersive listening experience similar to Dolby Atmos but at (higher bitrates) focused on music
        rather than cinematic audio.</li>
      <li>Compatible with selected headphones and speakers only, requires compatible decoder that supports the format.
      </li>
    </div>
    <img src="/assets/2a1d7ab60a104fb173c4f4ea1bdaa6e4.avif" alt="Sony360_RA Example"
      style="max-width: 70%; height: auto; display: block; margin: 20px auto; box-shadow: 0 0 15px rgba(255, 255, 255, 0.8); padding: 0px; background-color: #ffffffe3; border-radius: 10px;">

    <div class="spatial-audio-section">
      <h3 class="spatial-audio-heading">Binaural Audio</h3>
      <p class="spatial-audio-content">Binaural audio is a method of recording sound that uses two microphones arranged
        to create a 3D stereo sound sensation for the listener. This recording technique is designed to mimic the way
        human ears hear, with the microphones placed at a distance that simulates the human head.</p>
      <li>Creates an immersive listening experience, making the listener feel as if they are in the room where the sound
        was recorded.</li>
      <li>Best experienced using headphones (Apple Airpods/Beats) [Head-Tracking]Technology</li>
      <li>Used often in virtual reality (VR) and augmented reality (AR) applications.</li>
    </div>
    <img src="/assets/apple-airpods-spatial-1.webp" alt="Binaural Example"
      style="max-width: 65%; height: auto; display: block; margin: 20px auto; box-shadow: 0 0 15px rgba(255, 255, 255, 0.8); padding: 0px; background-color: #ffffffe3; border-radius: 10px;">


    <div class="spatial-audio-section">
      <h3 class="spatial-audio-heading">Downmix</h3>
      <p class="spatial-audio-content">Downmixing is the process of converting a multi-channel audio track (such as 5.1
        or 7.1 surround sound) into a format with fewer channels (such as stereo or mono).</p>
      <li>Ensures compatibility with different playback systems that may not support multi-channel audio.</li>
      <li>Important for maintaining audio quality and balance when played on devices that do not support the original
        format.</li>
      <li>Often used in broadcasting, streaming, and when creating home audio versions of theatrical releases.</li>
    </div>

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