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<html>
<head>
 <title>TIGER: Time-frequency Interleaved Gain Extraction and Reconstruction for Efficient Speech Separation
 </title>
 <meta property="og:image" content="./images/paper.png" />
 <!-- Facebook automatically scrapes this. Go to https://developers.facebook.com/tools/debug/ if you update and want to force Facebook to rescrape. -->
 <meta property="og:title"
 content="TIGER: Time-frequency Interleaved Gain Extraction and Reconstruction for Efficient Speech Separation" />
 <meta property="og:description"
 content="TIGER is a lightweight model for speech separation which effectively extracts key acoustic features through frequency band-split, multi-scale and full-frequency-frame modeling." />
<script async src=""></script>
 <script>
 window.dataLayer = window.dataLayer || [];
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 </head>
<body>
 <script type="text/javascript" src="script.js"></script>
 <br>
 <center>
 <!-- <img class="round" style="width:500px" src="./images/CPM/cvpr.jpg"/> -->
 <!-- <br/> -->
 <!-- <br/> -->
 <!-- <hr> -->
 <span style="font-size:36px">TIGER: Time-frequency Interleaved Gain Extraction and Reconstruction for Efficient
 Speech Separation</span>
 <br>
 <!-- <hr> -->
 <!-- </br> -->
 <!-- <span style="font-size:22px; color:#011B56;">━ <a href="https://openaccess.thecvf.com/CVPR2021">CVPR 2021</a> ━</span> -->
<!-- <br></br> -->
 <span style="font-size:20px; color:#011B56;">━ <a href="https://openreview.net/pdf?id=rzx3vcvlzj">ICLR 2025</a> ━</span>
 <br>
 <table align=center width=750px>
 <table align=center width=475px>
 <tr>
 <td align=center width=150px>
 <center>
 <span style="font-size:22px">Mohan Xu*</span>
 </center>
 </td>
 <td align=center width=150px>
 <center>
 <span style="font-size:22px"><a href="https://cslikai.cn">Kai Li*</a></span>
 </center>
 </td>
 <td align=center width=150px>
 <center>
 <span style="font-size:22px">Guo Chen</span>
 </center>
 </td>
 <td align=center width=150px>
 <center>
 <span style="font-size:22px">Xiaolin Hu</span>
 </center>
 </td>
 </tr>
 </table>
 <table align=center width=700px>
 <tr>
 <td align=center>
 <center>
 <span style="font-size:20px"><a href="https://www.cs.tsinghua.edu.cn/">Tsinghua
 University</a>
 <!-- <img class="img" width=100px src="./images/vinai-logo.png"></img> -->
 </span><br>
 <span style="font-size:15px">These authors contributed equally</span>
 <!-- <img class="img" width=100px src="./images/vinai-logo.png"></img> -->
 </center>
 </td>
 </tr>
 </table>
 <table align=center width=600px>
 <tr>
 <td align=center width=120px>
 <center>
 <span style="font-size:22px"><a href='https://arxiv.org/abs/2410.01469'>[arXiv
 📝]</a></span>
 </center>
 </td>
 <td align=center width=120px>
 <center>
 <span style="font-size:22px"><a href='https://github.com/JusperLee/TIGER'>[code
 ⚙️]</a></span><br>
 </center>
 </td>
 <!-- <td align=center, width=120px>
 <center>
 <span style="font-size:22px"><a href='#'>[poster 🖼️]</a></span><br>
 </center>
 </td> -->
 <td align=center, width=120px>
 <center>
 <span style="font-size:22px"><a href='https://huggingface.co/datasets/JusperLee/EchoSet'>[EchoSet
 🖼️]</a></span><br>
</center>
 </td>
 </tr>
 </table>
 </table>
 </center>
 <br>
 <center>
 <img class="round" style="width:200px" src="./assets/logo.png" />
 <!-- <p style="max-width:750px;">Given an edit specified by users in <a style="color:red;">an example image</a> (e.g., dog pose),<br>Our method can <a style="color:green;"><b>automatically</b> transfer that edit to other test images</a> (e.g., all dog same pose).</p> -->
 <p style="max-width:750px;"><a style="color:red;">TIGER</a> is a <a style="color: blue;"> lightweight model </a>
 for speech separation which
 <a style="color:green;">effectively extracts key acoustic features through frequency band-split, multi-scale
 and full-frequency-frame modeling.</a>
 </center>
 <hr>
 <table align=center width=850px>
 <center>
 <h1>Abstract</h1>
 </center>
 <tr>
 <td style="text-align: justify;">
 In recent years, much speech separation research has focused primarily on improving model performance.
 However, for low-latency speech processing systems, computational efficiency is equally critical.
 In this paper, we propose a speech separation model with significantly reduced parameter size and
 computational cost:
 <i>Time-Frequency Interleaved Gain Extraction and Reconstruction Network (TIGER)</i>.
 <a style="background-color:LightYellow;color:red">TIGER leverages prior knowledge to divide frequency
 bands and applies compression on frequency information.
 We employ a multi-scale selective attention (MSA) module to extract contextual features,
 while introducing a full-frequency-frame attention (F^3A) module to capture both temporal and
 frequency contextual information. </a>
 Additionally, to more realistically evaluate the performance of speech separation models in complex
 acoustic environments,
 we introduce a novel dataset called <i>EchoSet</i>. This dataset includes noise and more realistic
 reverberation
 (e.g., considering object occlusions and material properties), with speech from two speakers overlapping
 at random proportions.
 <a style="color:blue;"> Experimental results demonstrated that TIGER significantly outperformed
 state-of-the-art (SOTA) model TF-GridNet
 on the EchoSet dataset in both inference speed and separation quality, while reducing the number of
 parameters by <b>94.3</b>%
 and the MACs by <b>95.3</b>%. </a>These results indicate that by utilizing frequency band-split and
 interleaved modeling structures,
 TIGER achieves a substantial reduction in parameters and computational costs while maintaining high
 performance.
 Notably, TIGER is the first speech separation model with fewer than <b>1 million parameters</b>
 that achieves performance close to the SOTA model.
 </td>
 </tr>
 </table>
 <br>
 <center>
 <table align=center width=850px>
 <tr>
 <td width=260px>
 <center>
 <img class="round" style="width:1000px" src="./assets/TIGER.png" />
 </center>
 </td>
 </tr>
 </table>
 <table align=center width=850px>
 <tr>
 <td>
 <center>
 Overall pipeline of the model architecture of <a style="color:rgb(255, 136, 0);">TIGER</a> and
 its
 <a style="color:rgb(187, 0, 255);">modules</a>.
 </center>
 </td>
 </tr>
 </table>
 </center>
 <hr>
<center>
 <h1>Results on Speech Separation</h1>
 </center>
 <center>
 <p><img class="round" style='width: 1000px' src='./assets/result.png'>
 <figcaption>
 <a style="color: hotpink;">Performance comparisons</a> of TIGER and other existing separation models on <a
 style="color: orange;">Libri2Mix, LRS2-2Mix, and EchoSet</a>.
 Bold indicates optimal performance, and italics indicate suboptimal performance.
 </figcaption>
 </center>
 <center>
 <p><img class="round" style='width: 1000px' src='./assets/efficiency.png'>
 <figcaption>
 <a style="color: hotpink;">Efficiency</a> comparisons of TIGER and other models.
 </figcaption>
 </center>
 <hr>
<center>
 <h1>Results on Cinematic Sound Separation</h1>
 </center>
 <center>
 <p><img class="round" style='width: 1000px' src='./assets/dnr.png'>
 <figcaption>Comparison of <a style="color: hotpink;">performance and efficiency</a> of cinematic sound
 separation models on <a style="color: orange;">DnR</a>.
 ‘*’ means the result comes from the original paper of DnR.
 </figcaption>
 </center>
 <hr>
<center>
 <h1>Speech Separation Demo</h1>
 </center>
 <center>
 <h3 style="font-weight: bold; color: #ECAEA7">EchoSet Sample I</h3>
 <table class="table table-hover pt-2">
 <thread>
 <tr>
 <th style="text-align: center">Mixture</th>
 </tr>
 </thread>
 <tbody>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 365px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample1/GroundTruth/mix.wav" autoplay="">Your browser does
 not support the audio element.
 </audio>
 </td>
 </tr>
 </table>
 <table class="table table-hover pt-2">
 <thead>
 <tr>
 <th style="text-align: center">Ground Truth</th>
 <th style="text-align: center">TF-GridNet</th>
 <th style="text-align: center">TIGER</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample1/GroundTruth/s2.wav" autoplay="">Your browser does
 not support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample1/spec/ground_truth_s1.png">
 </td>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample1/TFGNet/s1.wav" autoplay="">Your browser does not
 support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample1/spec/TFGNet_s1.png"></td>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample1/TIGER/s1.wav" autoplay="">Your browser does not
 support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample1/spec/TIGER_s1.png"></td>
 </tr>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample1/GroundTruth/s1.wav" autoplay="">Your browser does
 not support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample1/spec/ground_truth_s2.png">
 </td>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample1/TFGNet/s2.wav" autoplay="">Your browser does not
 support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample1/spec/TFGNet_s2.png"></td>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample1/TIGER/s2.wav" autoplay="">Your browser does not
 support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample1/spec/TIGER_s2.png"></td>
 </tr>
 </tbody>
 </table>
 </center>
 <center>
 <h3 style="font-weight: bold; color: #ECAEA7">EchoSet Sample II</h3>
 <table class="table table-hover pt-2">
 <thread>
 <tr>
 <th style="text-align: center">Mixture</th>
 </tr>
 </thread>
 <tbody>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 365px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample2/GroundTruth/mix.wav" autoplay="">Your browser does
 not support the audio element.
 </audio>
 </td>
 </tr>
 </table>
 <table class="table table-hover pt-2">
 <thead>
 <tr>
 <th style="text-align: center">Ground Truth</th>
 <th style="text-align: center">TF-GridNet</th>
 <th style="text-align: center">TIGER</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample2/GroundTruth/s2.wav" autoplay="">Your browser does
 not support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample2/spec/ground_truth_s1.png">
 </td>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample2/TFGNet/s2.wav" autoplay="">Your browser does not
 support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample2/spec/TFGNet_s1.png"></td>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample2/TIGER/s1.wav" autoplay="">Your browser does not
 support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample2/spec/TIGER_s1.png"></td>
 </tr>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample2/GroundTruth/s1.wav" autoplay="">Your browser does
 not support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample2/spec/ground_truth_s2.png">
 </td>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample2/TFGNet/s1.wav" autoplay="">Your browser does not
 support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample2/spec/TFGNet_s2.png"></td>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample2/TIGER/s2.wav" autoplay="">Your browser does not
 support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample2/spec/TIGER_s2.png"></td>
 </tr>
 </tbody>
 </table>
 </center>
 <center>
 <h3 style="font-weight: bold; color: #ECAEA7">EchoSet Sample III</h3>
 <table class="table table-hover pt-2">
 <thread>
 <tr>
 <th style="text-align: center">Mixture</th>
 </tr>
 </thread>
 <tbody>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 365px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample3/GroundTruth/mix.wav" autoplay="">Your browser does
 not support the audio element.
 </audio>
 </td>
 </tr>
 </table>
 <table class="table table-hover pt-2">
 <thead>
 <tr>
 <th style="text-align: center">Ground Truth</th>
 <th style="text-align: center">TF-GridNet</th>
 <th style="text-align: center">TIGER</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample3/GroundTruth/s2.wav" autoplay="">Your browser does
 not support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample3/spec/ground_truth_s1.png">
 </td>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample3/TFGNet/s1.wav" autoplay="">Your browser does not
 support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample3/spec/TFGNet_s1.png"></td>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample3/TIGER/s1.wav" autoplay="">Your browser does not
 support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample3/spec/TIGER_s1.png"></td>
 </tr>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample3/GroundTruth/s1.wav" autoplay="">Your browser does
 not support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample3/spec/ground_truth_s2.png">
 </td>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample3/TFGNet/s2.wav" autoplay="">Your browser does not
 support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample3/spec/TFGNet_s2.png"></td>
 <td style="text-align: center;vertical-align:middle;width: 800px"><audio controls="controls"
 style="width: 100%;">
 <source src="assets/sample3/TIGER/s2.wav" autoplay="">Your browser does not
 support the audio element.
 </audio><img controls="" class="rounded" style="width: 100%;"
 src="assets/sample3/spec/TIGER_s2.png"></td>
 </tr>
 </tbody>
 </table>
 </center>
 <hr>
 <center>
 <h1>Cinematic Sound Demo</h1>
 </center>
 <center>
 <table class="table table-hover pt-2">
 <thread>
 <tr>
 <th style="text-align: center">Deadpool</th>
 </tr>
 </thread>
 <tbody>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 365px">
 <video controls style="width: 100%;">
 <source src="assets/dnr-demo/sample1/mixture.mp4" type="video/mp4">
 </video>
 </td>
 </tr>
 </table>
 <table class="table table-hover pt-2">
 <thead>
 <tr>
 <th style="text-align: center">Dialog</th>
 <th style="text-align: center">Music</th>
 <th style="text-align: center">Effect</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 365px">
 <video controls style="width: 100%;">
 <source src="assets/dnr-demo/sample1/dialog.mp4" type="video/mp4">
 </video>
 </td>
 <td style="text-align: center;vertical-align:middle;width: 365px">
 <video controls style="width: 100%;">
 <source src="assets/dnr-demo/sample1/music.mp4" type="video/mp4">
 </video>
 </td>
 <td style="text-align: center;vertical-align:middle;width: 365px">
 <video controls style="width: 100%;">
 <source src="assets/dnr-demo/sample1/effect.mp4" type="video/mp4">
 </video>
 </td>
 </tr>
 </tbody>
 </table>
 </center>
 <center>
 <table class="table table-hover pt-2">
 <thread>
 <tr>
 <th style="text-align: center">The Wandering Earth</th>
 </tr>
 </thread>
 <tbody>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 365px">
 <video controls style="width: 100%;">
 <source src="assets/dnr-demo/sample2/mixture.mp4" type="video/mp4">
 </video>
 </td>
 </tr>
 </table>
 <table class="table table-hover pt-2">
 <thead>
 <tr>
 <th style="text-align: center">Dialog</th>
 <th style="text-align: center">Music</th>
 <th style="text-align: center">Effect</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 365px">
 <video controls style="width: 100%;">
 <source src="assets/dnr-demo/sample2/dialog.mp4" type="video/mp4">
 </video>
 </td>
 <td style="text-align: center;vertical-align:middle;width: 365px">
 <video controls style="width: 100%;">
 <source src="assets/dnr-demo/sample2/music.mp4" type="video/mp4">
 </video>
 </td>
 <td style="text-align: center;vertical-align:middle;width: 365px">
 <video controls style="width: 100%;">
 <source src="assets/dnr-demo/sample2/effect.mp4" type="video/mp4">
 </video>
 </td>
 </tr>
 </tbody>
 </table>
 </center>
 <center>
 <table class="table table-hover pt-2">
 <thread>
 <tr>
 <th style="text-align: center">Captain America</th>
 </tr>
 </thread>
 <tbody>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 365px">
 <video controls style="width: 100%;">
 <source src="assets/dnr-demo/sample3/mixture.mp4" type="video/mp4">
 </video>
 </td>
 </tr>
 </table>
 <table class="table table-hover pt-2">
 <thead>
 <tr>
 <th style="text-align: center">Dialog</th>
 <th style="text-align: center">Music</th>
 <th style="text-align: center">Effect</th>
 </tr>
 </thead>
 <tbody>
 <tr>
 <td style="text-align: center;vertical-align:middle;width: 365px">
 <video controls style="width: 100%;">
 <source src="assets/dnr-demo/sample3/dialog.mp4" type="video/mp4">
 </video>
 </td>
 <td style="text-align: center;vertical-align:middle;width: 365px">
 <video controls style="width: 100%;">
 <source src="assets/dnr-demo/sample3/music.mp4" type="video/mp4">
 </video>
 </td>
 <td style="text-align: center;vertical-align:middle;width: 365px">
 <video controls style="width: 100%;">
 <source src="assets/dnr-demo/sample3/effect.mp4" type="video/mp4">
 </video>
 </td>
 </tr>
 </tbody>
 </table>
 </center>
 <hr>
 <table align=center width=900px>
 <tr>
 <td width=400px>
 <left>
 <center>
 <h1>Acknowledgements</h1>
 </center>
 Website template was borrowed from <a href="http://richzhang.github.io/colorization/">Colorful Image
 Colorization</a> and <a href="https://nerfies.github.io/">Nerfies</a>; the code can be found <a
 href="https://github.com/richzhang/webpage-template">here</a> and <a
 href="https://github.com/nerfies/nerfies.github.io">here</a>. Thank you (.❛ ᴗ ❛.).
 </left>
 </td>
 </tr>
 </table>
 <center>
 <a href="javascript:toggleblock('notice')" style="text-align:center;font-size:70%;color:#808080">▶ cslikai.cn's
 clustrmaps 🌎</a>.
 <div id="notice" style="display:none; color:#dedede; font-size:.5em;">
 <p>
 <script type="text/javascript" id="clustrmaps" src="//clustrmaps.com/map_v2.js?d=XUY5Bbv-l4Negr0uiIqE4axKMGnlqBRBDKL5EpeE2LY&cl=ffffff&w=a"></script>
 </p>
 </div>
 </center>
 <br>
</body>
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