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70 lines
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70 lines
4.5 KiB
HTML
<!-- www.ecodis.de/exhale/release.htm - created by Christian R. Helmrich - Copyright (c) 2018-2020 Christian R. Helmrich, project ecodis. All rights reserved. -->
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<meta name="author" content="Dr.-Ing. Christian R. Helmrich">
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<meta name="description" content="exhale Software Release Notes">
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<meta name="keywords" content="audio, data compression, perceptual coding, subjective evaluation, video">
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<title>ecodis :: exhale :: Release Notes</title>
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<h1><br><span class="pink">exhale</span> - <span class="pink">e</span>codis e<span class="pink">x</span>tended <span class="pink">h</span>igh-efficiency <span class="pink">a</span>nd <span class="pink">l</span>ow-complexity <span class="pink">e</span>ncoder<br><span class="gray"><sup><br>Software Release Notes, Version History, Known Issues, Upcoming Feature Roadmap</sup></span><br><br></h1>
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<h3> The version of this distribution of the «exhale» software release is <b>1.0.0</b> (official pub­lic major release) from January 2020. Please check <a href="http://www.ecodis.de">www.ecodis.de</a> regularly for new versions of this software. A summary of each version up to this release, a list of known issues with this release, and a roadmap of additional functionality are provided below.</h3>
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<h3><br><b>Chronological Version History</b></h3>
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<h3> Version <b>1.0.0 <span class="gray"> Jan. 2020, this release</span></b></h3>
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<li><h3>compilation fixes and executable printout changes for Linux and MacOS™ platform</h3></li>
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<li><h3>exhaleApp: fixed reading of WAVE files including metadata after the «data» chunk</h3></li>
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<li><h3>exhaleLib: some tuning of transform and noise level detection for transient signals</h3></li>
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<li><h3>exhaleLib: support for export as DLL on Microsoft Windows™ (not tested, though)</h3></li>
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<h3> Version <b>1.0RC <span class="gray">Dec. 2019</span></b></h3>
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<li><h3>initial release for testing with only basic channel-independent coding functionality</h3></li>
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<li><h3>only support for Microsoft Windows™ (32-bit and 64-bit) platform provided so far.</h3></li>
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<h3><br><b>Known Issues with This Release</b></h3>
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<h3> If you notice an issue with this release <b>not</b> mentioned below, please contact ecodis or a contributor with the details (configuration, input file) needed to reproduce the issue.</h3>
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<li><h3>exhaleLib: Coding of stereo or multichannel input yields suboptimal audio quality because the joint-channel coding functionality provided by the ISO/IEC <a href="https://www.iso.org/standard/76385.html">23003-3</a> standard has not been implemented so far. See the functionality roadmap below.</h3></li>
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<li><h3>exhaleApp: Only basic WAVE input file reading functionality has been implemen­ted. Specifically, 8-bit WAVE input is assumed to contain an even number of audio samples, and the Broadcast and Extensible WAVE file formats are not supported.</h3></li>
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<h3><br><b>Roadmap of Upcoming Features</b></h3>
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<h3> If you are in need of an additional library or application feature <b>not</b> mentioned below, please contact ecodis or a contributor with a request, and we will see what we can do.</h3>
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<li><h3>support for MPEG-D DRC-style peak-level and loudness metadata, no version plan</h3></li>
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<li><h3>support for coding with a core coder frame length of 768 samples, no version plan</h3></li>
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<li><h3>exhaleLib: quality tuning and bug fixing for low-bitrate mono coding, version 1.0.1</h3></li>
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<li><h3>exhaleLib: finalized integration of joint-channel coding functionality, version 1.0.2</h3></li>
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<li><h3>exhaleLib: quality tuning and bug fixing for low-rate stereo coding, version 1.0.3.</h3></li>
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<h3><br></h3>
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<h4><span class="gray">Written by C. R. Helmrich for exhale 1.0.0, Jan. 2020. Available at www.ecodis.de/exhale/release.htm.</span><br><br></h4>
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<p><br> <img src="../src/app/exhaleApp.ico" alt="exhale" title="exhale" height="48" width="48"></p>
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