[空间音频制作套件]Spatial Audio SPARTA v1.5.0 x64 VST [WiN, MAC, LINUX]（319Mb）

FREE | 27 May 2021 | 319 MB

Spatial Audio Real-Time Applications (SPARTA)
用于空间音频制作、再现和可视化的开源 VST 音频插件套件

关于SPARTA 是一组灵活的 VST 音频插件，用于空间音频制作、再现和可视化，主要由芬兰阿尔托大学声学实验室的成员开发。

• 可在此处找到当前和过去版本的下载链接。
• 该套件已在本出版物中正式介绍，源代码可在此处获得（GPLv3 许可）。
• SPARTA 安装程序还包括 COMPASS 套件、HO-DirAC 套件、CroPaC 双耳解码器和 HO-SIRR 房间脉冲响应渲染器。这些插件采用参数处理并且依赖于信号，旨在通过随时间提取有意义的参数并随后使用它们以更明智的方式将输入映射到输出来超越传统的线性环绕声。
• 对于好奇的研究人员和/或空间音频开发人员：请注意，SPARTA 安装程序中包含的插件都是使用开源 Spatial_Audio_Framework (SAF) 构建的。

SPARTA 安装程序中包含的插件列表SPARTA 套件：
• sparta_ambiBIN – 带有内置 SOFA 加载器和通过 OSC 消息支持头部跟踪的双耳 Ambisonic 解码器（最高 7 阶）。包括：最小二乘 (LS)、空间重采样 (SPR)、时间对齐 (TA) 和幅度最小二乘 (Mag-LS) 解码选项。
• sparta_ambiDEC – 具有用户可指定扬声器方向（最多 64 个）的频率相关扬声器环绕声解码器（最多 7 阶），可以选择通过 JSON 配置文件导入。包括：全方位 (AllRAD)、节能 (EPAD)、空间 (SAD) 和模式匹配 (MMD) 环绕声解码选项。扬声器信号也可以被双耳化以用于耳机播放。
• sparta_ambiDRC-用于混响信号的频率相关的动态范围压缩器（最高7阶）。
• sparta_ambiENC – Ambisonic 编码器/声像器（最多 7 阶），最多支持 64 个输入通道；也可以通过 JSON 配置文件导入的方向。
• sparta_ambiRoomSim – 基于图像源方法的鞋盒房间模拟器，支持多源和 Ambisonic 接收器。
• sparta_array2sh – 麦克风阵列空间编码器（最高 7 阶），具有多种商用 A 格式和更高格式的预设 -订购麦克风阵列。该插件还可以为当前选择的配置呈现客观的评估指标。
• sparta_beamformer– 具有多种波束形成策略（最多 64 个输出波束）的球谐域波束形成插件。
• sparta_binauraliser – 双耳声相器（最多 64 个输入通道），带有内置 SOFA 加载器和通过 OSC 消息的头部跟踪支持。
• sparta_decorrelator – 一个简单的多通道信号去相关器（最多 64 个输入通道）。
• sparta_dirass – 基于重新分配波束形成器能量的声场可视化器。这种重新分配基于从“空间受限”区域中提取的 DoA 估计，这些区域以每个波束成形器的观察方向为中心。
• sparta_matrixconv– 具有可选分区卷积模式的基本矩阵卷积器。用户只需指定输入数量并通过 wav 文件加载过滤器。
•sparta_multiconv-具有可选分区卷积模式的基本多通道卷积器。与“MatrixConv”不同，此插件不执行任何矩阵化。相反，每个输入通道都与相应的滤波器进行卷积；即 numInputs = numFilters = numOutputs。
• sparta_panner – 使用 VBAP 方法（最多 64 个输入和输出）的频率相关 3-D声像器。
• sparta_powermap – 基于Ambisonics 信号作为输入（最高7 阶）的声场可视化插件，具有PWD/MVDR/MUSIC/Min-Norm 选项。
• sparta_rotator– 灵活的 Ambisonic 旋转器（最高 7 阶），通过 OSC 消息支持头部跟踪。
• sparta_sldoa – 一种与频率相关的声场可视化器（最高 7 阶），基于描绘从空间局部活动强度向量得出的到达方向 (DoA) 估计值。低频估计用蓝色图标显示，中频用绿色图标显示，高频用红色图标显示。
• sparta_spreader – 具有相干和非相干扩展选项的任意阵列（例如HRIR或麦克风阵列 IR）声像仪。

COMPASS 套件：
• compass_binaural – 基于参数 COMPASS 模型的双耳 Ambisonic 解码器（最多 3 阶输入），具有内置 SOFA 加载器和通过 OSC 消息的头部跟踪支持。
•Compass_binauralVR-与Compass_binaural插件相同，但还支持围绕接收器位置的侦听器转换，并支持多个同时侦听器。
• Compass_decoder-一个经过参数增强的扬声器混响解码器（最多3阶输入）。
• compass_gravitator – 参数化声场聚焦插件。
• compass_sidechain – 一种插件，可根据不同录音的空间分析来操纵一个 Ambisonic 录音的空间属性。
• compass_spatedit – 灵活的空间编辑插件。
• compass_tracker – 多目标声学跟踪器，可以选择将波束成形器导向每个目标。
• compass_upmixer-Ambisonic上混器（1-3阶输入，2-7阶输出）。

HO-DirAC 套件：
• hodirac_binaural – 基于参数化 HO-DirAC 模型的双耳环绕声解码器（最多三阶输入），具有内置 SOFA 加载器和通过 OSC 消息的头部跟踪支持。
• hodirac_decoder – 参数增强的扬声器环绕声解码器（高达三阶输入）。
• hodirac_upmixer – Ambisonic 上混器（1-3 阶输入，2-7 阶输出）。

其他：
•cropac_decoder – 基于参数化CroPaC 模型的双耳一阶Ambisonics 解码器，具有内置SOFA 加载器和通过OSC 消息的头部跟踪支持。
• HOSIRR – 基于高阶空间脉冲响应渲染 (HO-SIRR) 算法的用于任意扬声器设置的 Ambisonic 房间脉冲响应 (RIR) 渲染器；

Spatial Audio Real-Time Applications (SPARTA)
An open-source VST audio plug-in suite for spatial audio production, reproduction and visualisation

AboutSPARTA is a collection of flexible VST audio plug-ins for spatial audio production, reproduction and visualisation, developed primarily by members of the Acoustics Lab at Aalto University, Finland.

• Download links of current and past versions can be found here.
• The suite has been formally presented in this publication, with the source code made available here (GPLv3 license).
• The SPARTA installer also includes the COMPASS suite, the HO-DirAC suite, CroPaC Binaural Decoder, and the HO-SIRR room impulse response renderer. These plug-ins employ parametric processing and are signal-dependent, aiming to go beyond conventional linear Ambisonics by extracting meaningful parameters over time and subsequently employing them to map the input to the output in a more informed manner.
• For the curious researchers and/or spatial audio developers: note that the plugins included in the SPARTA installer are all built using the open-source Spatial_Audio_Framework (SAF).

List of plug-ins included in the SPARTA installerThe SPARTA suite:
• sparta_ambiBIN – A binaural ambisonic decoder (up to 7th order) with a built-in SOFA loader and head-tracking support via OSC messages. Includes: Least-Squares (LS), spatial re-sampling (SPR), time-alignment (TA), and magnitude least-squares (Mag-LS) decoding options.
• sparta_ambiDEC – A frequency-dependent loudspeaker ambisonic decoder (up to 7th order) with user specifiable loudspeaker directions (up to 64), which may be optionally imported via JSON configuration files. Includes: All-Round (AllRAD), Energy-Preserving (EPAD), Spatial (SAD), and Mode-Matching (MMD) ambisonic decoding options. The loudspeaker signals may also be binauralised for headphone playback.
• sparta_ambiDRC – A frequency-dependent dynamic range compressor for ambisonic signals (up to 7th order).
• sparta_ambiENC – An ambisonic encoder/panner (up to 7th order), with support for up to 64 input channels; the directions for which may also be imported via JSON configuration files.
• sparta_ambiRoomSim – A shoebox room simulator based on the image-source method, supporting multiple sources and ambisonic receivers..
• sparta_array2sh – A microphone array spatial encoder (up to 7th order), with presets for several commercially available A-format and higher-order microphone arrays. The plug-in can also present objective evaluation metrics for the currently selected configuration.
• sparta_beamformer – A spherical harmonic domain beamforming plug-in with multiple beamforming strategies (up to 64 output beams).
• sparta_binauraliser – A binaural panner (up to 64 input channels) with a built-in SOFA loader and head-tracking support via OSC messages.
• sparta_decorrelator – A simple multi-channel signal decorrelator (up to 64 input channels).
• sparta_dirass – A sound-field visualiser based on re-assigning the energy of beamformers. This re-assigment is based on DoA estimates extracted from “spatially-constrained” regions, which are centred around each beamformer look-direction.
• sparta_matrixconv – A basic matrix convolver with an optional partitioned convolution mode. The user need only specify the number of inputs and load the filters via a wav file.
• sparta_multiconv – A basic multi-channel convolver with an optional partitioned convolution mode. Unlike “MatrixConv”, this plug-in does not perform any matrixing. Instead, each input channel is convolved with the respective filter; i.e. numInputs = numFilters = numOutputs.
• sparta_panner – A frequency-dependent 3-D panner using the VBAP method (up to 64 inputs and outputs).
• sparta_powermap – A sound-field visualisation plug-in based on ambisonic signals as input (up to 7th order), with PWD/MVDR/MUSIC/Min-Norm options.
• sparta_rotator – A flexible ambisonic rotator (up to 7th order) with head-tracking support via OSC messages.
• sparta_sldoa – A frequency-dependent sound-field visualiser (up to 7th order), based on depicting the direction-of-arrival (DoA) estimates derived from spatially localised active-intensity vectors. The low frequency estimates are shown with blue icons, mid-frequencies with green, and high-frequencies with red.
• sparta_spreader – An arbitrary array (e.g. HRIRs or microphone array IRs) panner with coherent and incoherent spreading options.

The COMPASS suite:
• compass_binaural – A binaural ambisonic decoder (up to 3rd order input) based on the parametric COMPASS model, with a built-in SOFA loader and head-tracking support via OSC messages.
• compass_binauralVR – Same as the compass_binaural plugin, but also supporting listener translation around the receiver position and support for multiple simultaneous listeners.
• compass_decoder – A parametrically enhanced loudspeaker ambisonic decoder (up to 3rd order input).
• compass_gravitator – A parametric sound-field focussing plug-in.
• compass_sidechain – A plug-in that manipulates the spatial properties of one Ambisonic recording based on the spatial analysis of a different recording.
• compass_spatedit – A flexible spatial editing plug-in.
• compass_tracker – A multiple target acoustic tracker which can optionally steer a beamformer towards each target.
• compass_upmixer – An Ambisonic upmixer (1-3rd order input, 2-7th order output).

The HO-DirAC suite:
• hodirac_binaural – A binaural ambisonic decoder (up to 3rd order input) based on the parametric HO-DirAC model, with a built-in SOFA loader and head-tracking support via OSC messages.
• hodirac_decoder – A parametrically enhanced loudspeaker ambisonic decoder (up to 3rd order input).
• hodirac_upmixer – An Ambisonic upmixer (1-3rd order input, 2-7th order output).

Other:
• cropac_decoder – A binaural 1st order ambisonic decoder based on the parametric CroPaC model, with a built-in SOFA loader and head-tracking support via OSC messages.
• HOSIRR – An Ambisonic room impulse response (RIR) renderer for arbitrary loudspeaker setups, based on the Higher-order Spatial Impulse Response Rendering (HO-SIRR) algorithm;