feat: 重构音频系统，移除外部依赖并新增WAV格式支持

- 移除install和update脚本中的aukit/austream下载配置与目标，不再部署辅助脚本
- 替换station_broadcast.lua的aukit库为CC内置dfpwm模块，重写音频播放逻辑
- 添加原生扬声器API支持，支持WAV格式音频播放
- 重写云端服务器音频处理逻辑，支持直接传输WAV文件无需预转换
- 新增WAV文件时长解析、音频序列合成等辅助功能

CloudServer/server.js

@@ -177,21 +177,23 @@ function sendAudioControl(stationName, msg, fallbackWs) {
     }
 }
 
-async function sendDfpwmBufferToStation(stationName, fallbackWs, task) {
+async function sendAudioBufferToStation(stationName, fallbackWs, task) {
     const targetWs = getStationWs(stationName, fallbackWs);
     if (!targetWs) throw new Error(`Station "${stationName}" not connected`);
 
     const audioId = String(task.audioId || `${Date.now()}-${Math.random().toString(16).slice(2)}`);
     const buf = task.buffer;
-    const durationSec = buf.length / 6000;
+    const durationSec = Number(task.durationSec || 0);
+    const audioFormat = String(task.audioFormat || 'dfpwm').toLowerCase();
 
     const startMsg = {
         type: 'audio_start',
         stationName,
         audioId,
         byteLength: buf.length,
-        sampleRate: 48000,
-        channels: 1,
+        sampleRate: Number(task.sampleRate || 48000),
+        channels: Number(task.channels || 1),
+        audioFormat,
         priority: Number(task.priority || 0),
         interruptMode: task.interruptMode || getInterruptModeForPriority(Number(task.priority || 0)),
         source: task.source || 'unknown'
@@ -254,29 +256,73 @@ function listMusicTracks() {
     return Array.from(out).sort((a, b) => a.localeCompare(b));
 }
 
-function getDfpwmBufferByBaseName(baseName) {
+function getWavDurationSec(buffer) {
+    if (!Buffer.isBuffer(buffer) || buffer.length < 44) return 0;
+    if (buffer.toString('ascii', 0, 4) !== 'RIFF' || buffer.toString('ascii', 8, 12) !== 'WAVE') return 0;
+
+    let offset = 12;
+    let sampleRate = 0;
+    let channels = 0;
+    let bitsPerSample = 0;
+    let dataSize = 0;
+
+    while (offset + 8 <= buffer.length) {
+        const chunkId = buffer.toString('ascii', offset, offset + 4);
+        const chunkSize = buffer.readUInt32LE(offset + 4);
+        const dataOffset = offset + 8;
+        if (dataOffset + chunkSize > buffer.length) break;
+
+        if (chunkId === 'fmt ' && chunkSize >= 16) {
+            channels = buffer.readUInt16LE(dataOffset + 2);
+            sampleRate = buffer.readUInt32LE(dataOffset + 4);
+            bitsPerSample = buffer.readUInt16LE(dataOffset + 14);
+        } else if (chunkId === 'data') {
+            dataSize = chunkSize;
+            break;
+        }
+
+        offset = dataOffset + chunkSize + (chunkSize % 2);
+    }
+
+    if (!sampleRate || !channels || !bitsPerSample || !dataSize) return 0;
+    return dataSize / (sampleRate * channels * (bitsPerSample / 8));
+}
+
+function getPlaybackAudioByBaseName(baseName) {
     const base = normalizeBaseName(baseName);
     if (!base) throw new Error('Invalid track name');
 
+    const wavCandidates = [
+        path.join(audioGeneralDir, `${base}.wav`),
+        path.join(audioStationDir, `${base}.wav`)
+    ];
+    for (const p of wavCandidates) {
+        if (fs.existsSync(p)) {
+            const buffer = fs.readFileSync(p);
+            return {
+                buffer,
+                audioFormat: 'wav',
+                durationSec: getWavDurationSec(buffer) || 0
+            };
+        }
+    }
+
     const dfCandidates = [
         path.join(audioGeneralDir, `${base}.dfpwm`),
         path.join(audioStationDir, `${base}.dfpwm`)
     ];
     for (const p of dfCandidates) {
-        if (fs.existsSync(p)) return fs.readFileSync(p);
+        if (fs.existsSync(p)) {
+            const buffer = fs.readFileSync(p);
+            return {
+                buffer,
+                audioFormat: 'dfpwm',
+                durationSec: buffer.length / 6000
+            };
+        }
     }
 
-    const wavCandidates = [
-        path.join(audioGeneralDir, `${base}.wav`),
-        path.join(audioStationDir, `${base}.wav`)
-    ];
-    const wavPath = wavCandidates.find(p => fs.existsSync(p)) || null;
-    if (!wavPath) throw new Error(`Audio not found: ${base}`);
-
-    const dfpwmPath = wavPath.replace(/\.wav$/i, '.dfpwm');
-    if (!fs.existsSync(dfpwmPath)) convertToDfpwm(wavPath);
-    if (!fs.existsSync(dfpwmPath)) throw new Error(`DFPWM build failed: ${base}`);
-    return fs.readFileSync(dfpwmPath);
+    throw new Error(`Audio not found: ${base}`);
 }
 
 function stopStationMusic(stationName, fallbackWs) {
@@ -357,7 +403,7 @@ async function processStationAudioQueue(stationName, fallbackWs) {
 
             try {
                 if (task.consoleStreamStart) broadcastToConsole(task.consoleStreamStart);
-                const result = await sendDfpwmBufferToStation(cleanStation, fallbackWs, task);
+                const result = await sendAudioBufferToStation(cleanStation, fallbackWs, task);
                 if (task.consoleStreamEnd) {
                     if (result.cancelled) {
                         broadcastToConsole(task.consoleStreamEnd);
@@ -767,6 +813,25 @@ function buildConcatListFile(seq) {
     return listPath;
 }
 
+function buildSequenceWavBuffer(seq) {
+    const listPath = buildConcatListFile(seq);
+    if (!listPath) return null;
+
+    const outWavPath = path.join(tmpDir, `sequence-${Date.now()}-${Math.random().toString(16).slice(2)}.wav`);
+    try {
+        execSync(`ffmpeg -hide_banner -loglevel error -y -f concat -safe 0 -i "${listPath}" -ac 1 -ar 48000 -c:a pcm_s16le "${outWavPath}"`);
+        const buffer = fs.readFileSync(outWavPath);
+        return {
+            buffer,
+            audioFormat: 'wav',
+            durationSec: getWavDurationSec(buffer) || 0
+        };
+    } finally {
+        try { fs.unlinkSync(listPath); } catch {}
+        try { fs.unlinkSync(outWavPath); } catch {}
+    }
+}
+
 function runFfmpegRtmpPush(streamName, seq) {
     const state = getOrCreateHlsStreamState(streamName);
     const listPath = buildConcatListFile(seq);
@@ -1412,52 +1477,8 @@ function handlePlaySequence(ws, data) {
 
     log('INFO', `Playing sequence for ${correctStation}: ${seq.join(', ')}`);
     
-    // Process files sequentially
-    let combinedBuffer = [];
-    for (const file of seq) {
-        if (file === '__DELAY_1__') {
-            const silence = Buffer.alloc(6000, 0xAA);
-            combinedBuffer.push(silence);
-            continue;
-        }
-        
-        let foundPath = null;
-        
-        const candidates = [
-            path.join(audioStationDir, `${file}.dfpwm`),
-            path.join(audioGeneralDir, `${file}.dfpwm`),
-            path.join(audioStationDir, `${file}.wav`),
-            path.join(audioGeneralDir, `${file}.wav`)
-        ];
-        
-        for (const p of candidates) {
-            if (fs.existsSync(p)) {
-                foundPath = p;
-                break;
-            }
-        }
-        
-        if (foundPath) {
-            let dfpwmPath = foundPath;
-            if (foundPath.endsWith('.wav')) {
-                dfpwmPath = foundPath.replace(/\.wav$/, '.dfpwm');
-                if (!fs.existsSync(dfpwmPath)) {
-                    convertToDfpwm(foundPath);
-                }
-            }
-            
-            if (fs.existsSync(dfpwmPath)) {
-                combinedBuffer.push(fs.readFileSync(dfpwmPath));
-            } else {
-                log('WARN', `Could not get DFPWM for: ${file}`);
-            }
-        } else {
-            log('WARN', `Audio missing on server: ${file}`);
-        }
-    }
-    
-    if (combinedBuffer.length > 0) {
-        const finalBuffer = Buffer.concat(combinedBuffer);
+    const builtAudio = buildSequenceWavBuffer(seq);
+    if (builtAudio) {
         const priority = Number.isFinite(Number(data.priority))
             ? Number(data.priority)
             : (String(data.category || '').toLowerCase() === 'station' ? 0 : 1);
@@ -1467,7 +1488,9 @@ function handlePlaySequence(ws, data) {
         const audioId = String(requestId || `${Date.now()}-${Math.random().toString(16).slice(2)}`);
 
         enqueueStationAudioTask(cleanStation, ws, {
-            buffer: finalBuffer,
+            buffer: builtAudio.buffer,
+            audioFormat: builtAudio.audioFormat,
+            durationSec: builtAudio.durationSec,
             priority,
             interruptMode,
             source,
@@ -1476,6 +1499,8 @@ function handlePlaySequence(ws, data) {
             consoleStreamStart: { type: 'stream_start', station: cleanStation, seq: seq, streamName, hlsUrl },
             consoleStreamEnd: { type: 'stream_end', station: cleanStation }
         });
+    } else {
+        log('WARN', `Unable to build WAV sequence for ${cleanStation}`);
     }
 }
 
@@ -2171,18 +2196,12 @@ function buildTempBroadcastFromWav(prefixWavPath, contentWavPath) {
     ].join(';');
 
     execSync(`ffmpeg -hide_banner -loglevel error -y -i "${prefixWavPath}" -i "${contentWavPath}" -filter_complex "${filterComplex}" -map "[a]" -ac 1 -ar 48000 -c:a pcm_s16le "${outWavPath}"`);
-
-    convertToDfpwm(outWavPath);
-
-    const dfpwmPath = outWavPath.replace(/\.wav$/i, '.dfpwm');
-    if (!fs.existsSync(dfpwmPath)) throw new Error('DFPWM build failed');
-    const dfpwmBuf = fs.readFileSync(dfpwmPath);
-    const durationSec = dfpwmBuf.length / 6000;
+    const wavBuf = fs.readFileSync(outWavPath);
+    const durationSec = getWavDurationSec(wavBuf) || 0;
 
     return {
         broadcastId,
         wavPath: outWavPath,
-        dfpwmPath,
         durationSec
     };
 }
@@ -2254,10 +2273,10 @@ app.post('/api/temp-broadcast/publish', (req, res) => {
     if (urgency !== 'normal' && urgency !== 'emergency') return res.status(400).json({ success: false, message: 'Invalid urgency' });
 
     const wavPath = path.join(tempBroadcastDir, `temp_${broadcastId}.wav`);
-    const dfpwmPath = wavPath.replace(/\.wav$/i, '.dfpwm');
-    if (!fs.existsSync(dfpwmPath)) return res.status(404).json({ success: false, message: 'Temp broadcast not found (dfpwm)' });
+    if (!fs.existsSync(wavPath)) return res.status(404).json({ success: false, message: 'Temp broadcast not found (wav)' });
 
-    const dfpwmBuf = fs.readFileSync(dfpwmPath);
+    const wavBuf = fs.readFileSync(wavPath);
+    const durationSec = getWavDurationSec(wavBuf) || 0;
     const priority = urgency === 'emergency' ? 2 : 0;
     const interruptMode = urgency === 'emergency' ? 'all' : 'none';
     const source = urgency === 'emergency' ? 'temp_emergency' : 'temp_normal';
@@ -2277,7 +2296,9 @@ app.post('/api/temp-broadcast/publish', (req, res) => {
             continue;
         }
         enqueueStationAudioTask(name, ws, {
-            buffer: dfpwmBuf,
+            buffer: wavBuf,
+            audioFormat: 'wav',
+            durationSec,
             priority,
             interruptMode,
             source,
@@ -2305,9 +2326,9 @@ app.post('/api/music/start', express.json(), (req, res) => {
     if (!track) return res.status(400).json({ success: false, message: 'track required' });
     if (!Array.isArray(stationsReq) || stationsReq.length === 0) return res.status(400).json({ success: false, message: 'stations required' });
 
-    let dfpwmBuf;
+    let playbackAudio;
     try {
-        dfpwmBuf = getDfpwmBufferByBaseName(track);
+        playbackAudio = getPlaybackAudioByBaseName(track);
     } catch (e) {
         return res.status(404).json({ success: false, message: e?.message || String(e) });
     }
@@ -2338,7 +2359,9 @@ app.post('/api/music/start', express.json(), (req, res) => {
             }
 
             enqueueStationAudioTask(name, currentWs, {
-                buffer: dfpwmBuf,
+                buffer: playbackAudio.buffer,
+                audioFormat: playbackAudio.audioFormat,
+                durationSec: playbackAudio.durationSec,
                 priority: -1,
                 interruptMode: 'none',
                 source: 'music',

install_station_broadcast.lua

@@ -1,6 +1,4 @@
-local STATION_BROADCAST_URL = "https://cloud.fse-media.group/d/API/StationBroadcast/station_broadcast.lua?sign=xXsMwezjnEs4c6QrjkJkbvz1rARokmm87zwDcDDS5dk=:0"
-local AUKIT_URL = "https://cloud.fse-media.group/d/API/StationBroadcast/aukit.lua?sign=02_QDktYbSrHrtCDsFlKMkbEOWJGDautZaOtWkvg5q8=:0"
-local AUSTREAM_URL = "https://cloud.fse-media.group/d/API/StationBroadcast/austream.lua?sign=DrLbf9CIX1ZY8DaL8vliZiCMQzGos10nhG26Wf5lbgA=:0"
+local STATION_BROADCAST_URL = "https://gitea.fse-media.group/Henry_Du/CC-StationBroadcast/raw/commit/e4b4fa5cdb2bc42279fd87098fef0d27a90e23d5/station_broadcast.lua"
 
 local function fetch(url)
     if not http then
@@ -66,9 +64,7 @@ local function downloadTo(url, path)
 end
 
 local targets = {
-    { url = STATION_BROADCAST_URL, path = shell.resolve("/startup") },
-    { url = AUKIT_URL, path = shell.resolve("/aukit.lua") },
-    { url = AUSTREAM_URL, path = shell.resolve("/austream.lua") }
+    { url = STATION_BROADCAST_URL, path = shell.resolve("/startup") }
 }
 
 for _, t in ipairs(targets) do

station_broadcast-warning.lua

@@ -10,6 +10,8 @@ local COLORS = {
     SUCCESS = colors.green
 }
 
+local dfpwm = require "cc.audio.dfpwm"
+
 -- Debug output function
 local function debugPrint(level, message)
     local timestamp = os.date("%H:%M:%S")
@@ -21,6 +23,52 @@ local function debugPrint(level, message)
     term.setTextColor(oldColor)
 end
 
+local function playDfpwmFile(path, volume)
+    local speakers = { peripheral.find("speaker") }
+    if #speakers == 0 then
+        debugPrint("ERROR", "No speakers found")
+        return false
+    end
+
+    local file = fs.open(path, "rb")
+    if not file then
+        debugPrint("ERROR", "Cannot open audio file: " .. path)
+        return false
+    end
+
+    local decoder = dfpwm.make_decoder()
+    local controller = speakers[1]
+    while true do
+        local chunk = file.read(16 * 1024)
+        if not chunk then break end
+        local samples = decoder(chunk)
+
+        if controller and type(controller.playAudioAll) == "function" then
+            while not controller.playAudioAll(samples, volume) do
+                os.pullEvent("speaker_audio_empty")
+            end
+        else
+            local pending = {}
+            for _, sp in ipairs(speakers) do
+                pending[peripheral.getName(sp)] = sp
+            end
+            while next(pending) do
+                for name, sp in pairs(pending) do
+                    if sp.playAudio(samples, volume) then
+                        pending[name] = nil
+                    end
+                end
+                if next(pending) then
+                    os.pullEvent("speaker_audio_empty")
+                end
+            end
+        end
+    end
+
+    file.close()
+    return true
+end
+
 -- Add random audio playback function
 local function playRandomAudio()
     local audioFiles = {"aqtx", "jzxy"}
@@ -29,7 +77,7 @@ local function playRandomAudio()
     
     if fs.exists(path) then
         debugPrint("INFO", "Attempting to play: "..path)
-        shell.run("austream "..path.." volume=3.0")
+        playDfpwmFile(path, 3.0)
         debugPrint("INFO", "Finished playing: "..randomFile)
     else
         debugPrint("ERROR", "Audio file not found: "..path)

station_broadcast.lua

@@ -14,7 +14,7 @@ local CONFIG = {
     DEBUG = true
 }
 
-local aukit = require "aukit"
+local dfpwm = require "cc.audio.dfpwm"
 
 local COLORS = {
     INFO = colors.white,
@@ -527,12 +527,14 @@ end
 
 function Audio.enqueueDfpwm(dfpwmData)
     if type(dfpwmData) ~= "string" or #dfpwmData == 0 then return end
-    Audio.enqueueItem({ dfpwmData = dfpwmData, priority = 1 })
+    Audio.enqueueItem({ audioData = dfpwmData, audioFormat = "dfpwm", priority = 1 })
 end
 
 function Audio.enqueueItem(item)
     if type(item) ~= "table" then return end
-    if type(item.dfpwmData) ~= "string" and type(item.dfpwmData) ~= "table" then return end
+    item.audioData = item.audioData or item.dfpwmData
+    item.audioFormat = tostring(item.audioFormat or (item.dfpwmData and "dfpwm") or "dfpwm"):lower()
+    if type(item.audioData) ~= "string" and type(item.audioData) ~= "table" then return end
     item.priority = tonumber(item.priority) or 0
     local idx = 1
     while idx <= #State.audioQueue do
@@ -578,6 +580,19 @@ local function shouldStop(playSeq)
     return State.interruptSeq ~= playSeq
 end
 
+local function waitForInterruptibleDelay(playSeq, seconds)
+    local timer = os.startTimer(seconds)
+    while true do
+        local ev = { os.pullEvent() }
+        if ev[1] == "audio_interrupt" and tonumber(ev[2]) and tonumber(ev[2]) >= playSeq then
+            return false
+        end
+        if ev[1] == "timer" and ev[2] == timer then
+            return true
+        end
+    end
+end
+
 local function playChunkOnSpeakers(samples, volume, playSeq)
     if not Peripherals.speakers or #Peripherals.speakers == 0 then return false end
     local controller = Peripherals.speakers[1]
@@ -639,6 +654,82 @@ local function playChunkOnSpeakers(samples, volume, playSeq)
     return true
 end
 
+local function areHqSpeakersBusy(speakers)
+    for _, sp in ipairs(speakers) do
+        local playing = false
+        local queued = 0
+        pcall(function()
+            if type(sp.speakIsPlaying) == "function" then
+                playing = sp.speakIsPlaying() and true or false
+            end
+            if type(sp.speakQueueSize) == "function" then
+                queued = tonumber(sp.speakQueueSize()) or 0
+            end
+        end)
+        if playing or queued > 0 then return true end
+    end
+    return false
+end
+
+local function playHqAudioItem(item)
+    if not Peripherals.speakers or #Peripherals.speakers == 0 then
+        Utils.log("WARN", "No speakers found; cannot play audio")
+        return
+    end
+
+    local playSeq = State.interruptSeq
+    local payload = item.audioData
+    if type(payload) ~= "string" or #payload == 0 then return end
+
+    local format = tostring(item.audioFormat or "file"):lower()
+    local controller = Peripherals.speakers[1]
+    local called = false
+
+    if controller then
+        local ok, result = pcall(function()
+            if format == "wav" and type(controller.speakWavAll) == "function" then
+                return controller.speakWavAll(payload, CONFIG.AUDIO_VOLUME)
+            elseif type(controller.speakFileAll) == "function" then
+                return controller.speakFileAll(payload, CONFIG.AUDIO_VOLUME)
+            end
+        end)
+        if ok and result ~= false then
+            called = true
+        end
+    end
+
+    if not called then
+        for _, sp in ipairs(Peripherals.speakers) do
+            local ok, result = pcall(function()
+                if format == "wav" and type(sp.speakWav) == "function" then
+                    return sp.speakWav(payload, CONFIG.AUDIO_VOLUME)
+                elseif type(sp.speakFile) == "function" then
+                    return sp.speakFile(payload, CONFIG.AUDIO_VOLUME)
+                end
+            end)
+            if ok and result ~= false then
+                called = true
+            end
+        end
+    end
+
+    if not called then
+        Utils.log("ERROR", "HQ speaker API not available for format " .. format)
+        return
+    end
+
+    while areHqSpeakersBusy(Peripherals.speakers) do
+        if shouldStop(playSeq) then
+            Audio.stop("current")
+            return
+        end
+        if not waitForInterruptibleDelay(playSeq, 0.1) then
+            Audio.stop("current")
+            return
+        end
+    end
+end
+
 function Audio.playDfpwmItem(item)
     if not Peripherals.speakers or #Peripherals.speakers == 0 then
         Utils.log("WARN", "No speakers found; cannot play audio")
@@ -646,23 +737,42 @@ function Audio.playDfpwmItem(item)
     end
     
     local playSeq = State.interruptSeq
-    local source = item.dfpwmData
+    local source = item.audioData
     
     -- Support both static string data and streaming functions
     if type(source) == "table" and source.read then
         source = source.read
     end
 
-    local ok, iter = pcall(aukit.stream.dfpwm, source, 48000, 1, false)
-    if not ok then
-        Utils.log("ERROR", "Failed to create audio stream: " .. tostring(iter))
-        return
+    if type(source) ~= "function" then
+        local data = source
+        source = function()
+            local chunk = data
+            data = nil
+            return chunk
+        end
     end
 
-    for chunk in iter do
+    local decoder = dfpwm.make_decoder()
+    while true do
         if shouldStop(playSeq) then break end
-        if not playChunkOnSpeakers(chunk[1], CONFIG.AUDIO_VOLUME, playSeq) then break end
+        local chunk = source()
+        if chunk == nil then break end
+        if type(chunk) == "string" and #chunk > 0 then
+            local samples = decoder(chunk)
+            if samples and not playChunkOnSpeakers(samples, CONFIG.AUDIO_VOLUME, playSeq) then
+                break
             end
+        end
+    end
+end
+
+function Audio.playItem(item)
+    local format = tostring(item.audioFormat or "dfpwm"):lower()
+    if format == "wav" or format == "file" then
+        return playHqAudioItem(item)
+    end
+    return Audio.playDfpwmItem(item)
 end
 
 function Audio.playerLoop()
@@ -674,7 +784,7 @@ function Audio.playerLoop()
             State.currentPlaying = item
             State.currentPriority = tonumber(item.priority) or 0
             
-            local ok, err = pcall(Audio.playDfpwmItem, item)
+            local ok, err = pcall(Audio.playItem, item)
             if not ok then
                 Utils.log("ERROR", "Audio Playback Crash: " .. tostring(err))
             end
@@ -927,6 +1037,23 @@ function Network.syncFiles()
 end
 
 function Network.messageLoop()
+    local function finishAudioRx()
+        if not State.audioRx then return end
+        local rx = State.audioRx
+        if rx.stream then
+            rx.stream.finish()
+        else
+            Audio.enqueueItem({
+                audioData = table.concat(rx.chunks or {}),
+                audioFormat = rx.audioFormat or "wav",
+                priority = rx.priority,
+                source = rx.source,
+                audioId = rx.audioId
+            })
+        end
+        State.audioRx = nil
+    end
+
     while true do
         local event, url, msg = os.pullEvent()
         if event == "websocket_message" and url == CONFIG.CLOUD_URL then
@@ -937,6 +1064,7 @@ function Network.messageLoop()
                         pcall(State.audioRx.stream.finish)
                     end
                     local priority = tonumber(data.priority) or 0
+                    local audioFormat = tostring(data.audioFormat or "dfpwm"):lower()
                     local interruptMode = tostring(data.interruptMode or "")
                     if interruptMode == "" then
                         if priority >= 2 then interruptMode = "all"
@@ -950,27 +1078,31 @@ function Network.messageLoop()
                         Audio.stop("current", priority)
                     end
 
-                    local stream = Audio.createStream()
                     State.audioRx = {
                         audioId = data.audioId,
                         expectedBytes = tonumber(data.byteLength) or 0,
                         receivedBytes = 0,
-                        stream = stream,
                         priority = priority,
-                        source = data.source or data.category
+                        source = data.source or data.category,
+                        audioFormat = audioFormat
                     }
                     
-                    -- Start playing immediately by enqueuing the stream
+                    if audioFormat == "dfpwm" then
+                        local stream = Audio.createStream()
+                        State.audioRx.stream = stream
                         Audio.enqueueItem({
-                        dfpwmData = stream,
+                            audioData = stream,
+                            audioFormat = audioFormat,
                             priority = priority,
                             source = State.audioRx.source,
                             audioId = data.audioId
                         })
+                    else
+                        State.audioRx.chunks = {}
+                    end
                 elseif data.type == "audio_end" then
                     if State.audioRx and (not data.audioId or data.audioId == State.audioRx.audioId) then
-                        State.audioRx.stream.finish()
-                        State.audioRx = nil
+                        finishAudioRx()
                     end
                 elseif data.type == "audio_stop" then
                     local scope = tostring(data.scope or "")
@@ -1001,14 +1133,19 @@ function Network.messageLoop()
                         -- Memory protection: limit to 10MB per audio item
                         if State.audioRx.receivedBytes + #msg > 10 * 1024 * 1024 then
                             Utils.log("ERROR", "Audio item too large, discarding")
+                            if State.audioRx.stream then
                                 State.audioRx.stream.finish()
+                            end
                             State.audioRx = nil
                         else
+                            if State.audioRx.stream then
                                 State.audioRx.stream.push(msg)
+                            else
+                                table.insert(State.audioRx.chunks, msg)
+                            end
                             State.audioRx.receivedBytes = State.audioRx.receivedBytes + #msg
                             if State.audioRx.expectedBytes > 0 and State.audioRx.receivedBytes >= State.audioRx.expectedBytes then
-                                State.audioRx.stream.finish()
-                                State.audioRx = nil
+                                finishAudioRx()
                             end
                         end
                     end

update_station_broadcast.lua

@@ -1,6 +1,4 @@
-local STATION_BROADCAST_URL = "https://cloud.fse-media.group/d/API/StationBroadcast/station_broadcast.lua?sign=xXsMwezjnEs4c6QrjkJkbvz1rARokmm87zwDcDDS5dk=:0"
-local AUKIT_URL = "https://cloud.fse-media.group/d/API/StationBroadcast/aukit.lua?sign=02_QDktYbSrHrtCDsFlKMkbEOWJGDautZaOtWkvg5q8=:0"
-local AUSTREAM_URL = "https://cloud.fse-media.group/d/API/StationBroadcast/austream.lua?sign=DrLbf9CIX1ZY8DaL8vliZiCMQzGos10nhG26Wf5lbgA=:0"
+local STATION_BROADCAST_URL = "https://gitea.fse-media.group/Henry_Du/CC-StationBroadcast/raw/commit/e4b4fa5cdb2bc42279fd87098fef0d27a90e23d5/station_broadcast.lua"
 
 local function fetch(url)
     if not http then
@@ -66,9 +64,7 @@ local function downloadTo(url, path)
 end
 
 local targets = {
-    { url = STATION_BROADCAST_URL, path = shell.resolve("/startup") },
-    { url = AUKIT_URL, path = shell.resolve("/aukit.lua") },
-    { url = AUSTREAM_URL, path = shell.resolve("/austream.lua") }
+    { url = STATION_BROADCAST_URL, path = shell.resolve("/startup") }
 }
 
 for _, t in ipairs(targets) do