collaplex-audio/pipewire/10-collaplex-vsink.conf

# Collaplex 虚拟声卡 + 响度归一化  —— 本文件由 脚本/安装.sh 生成(占位符: __HRTF_IN__ / __WRAPPER__)
# 链路: 全局音频(应用输出) -> collaplex_vsink(虚拟声卡) -> 响度归一化(pipe DSP) -> 数字输出(S/PDIF)
context.modules = [
    {   name = libpipewire-module-filter-chain
        flags = [ nofail ]
        args = {
            node.description = "Collaplex 虚拟声卡 (响度归一化)"
            media.name       = "Collaplex Virtual Sink"
            filter.graph = {
                nodes = [
                    { type = builtin label = copy name = c1L }
                    { type = builtin label = copy name = c1R }
                    { type = builtin label = pipe name = lnL
                      config = { command = "__WRAPPER__" } }
                    { type = builtin label = pipe name = lnR
                      config = { command = "__WRAPPER__" } }
                    { type = builtin label = copy name = c2L }
                    { type = builtin label = copy name = c2R }
                ]
                links = [
                    { output = "c1L:Out" input = "lnL:In" }
                    { output = "c1R:Out" input = "lnR:In" }
                    { output = "lnL:Out" input = "c2L:In" }
                    { output = "lnR:Out" input = "c2R:In" }
                ]
                inputs  = [ "c1L:In" "c1R:In" ]
                outputs = [ "c2L:Out" "c2R:Out" ]
            }
            capture.props = {
                media.class    = Audio/Sink
                node.name      = collaplex_vsink
                audio.position = [ FL FR ]
                # ★ 虚拟声卡必须常驻运行。空闲时若被 suspend, 客户端(Chromium 经
                #   pipewire-pulse)会认为输出端停止消费而不再推数据 —— 表现为
                #   "播着播着突然没声音, 刷新页面才恢复"。让节点永不空闲休眠。
                node.always-process = true
                node.pause-on-idle  = false
            }
            playback.props = {
                node.name      = collaplex_vsink_out
                audio.position = [ FL FR ]
                node.target    = "__HRTF_IN__"
                node.always-process = true
                node.pause-on-idle  = false
            }
        }
    }
]