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XC7109 Audio

Select server audio

Upload local audio

XC7109 MIC Idle

XC7109 Live MIC (Pseudo-live)

即時收集 chunk，Stop 後整段轉檔並送到 XC7109（pseudo-live）

Idle

Start Live：開始收集語音
Stop Live：停止並播放整段語音（非即時）

XC7109 Realtime MIC

PCM 串流（低延遲），邊講邊從 XC7109 播出（非 pseudo-live）

Idle

MIC Gain: 4.0

Start Realtime：開始即時送音到 XC7109
Stop Realtime：停止即時串流

XC7109 Uplink Monitor（C54A）

Node 收 UDP 5006 → WebSocket /ws/xc7109-mic-uplink：u8 / 16kHz / mono / 512 bytes；可調 HPF/LPF、Smooth Soft Gate、Preset（C54A：Gate Floor step 0.01）

Recommended tested setting: Gain=1.2 Soft thr=0.035 floor=0.10 HPF=250Hz LPF=2.4kHz（SBIR demo 安全預設）

idle

Monitor Gain 1.2x

Gate Mode

Gate Threshold 0.035

Gate Floor 0.10

High-pass

HPF Cutoff

Low-pass

LPF Cutoff

wav_capture=idle

C54A: packets=- bytes=- ageMs=- gain=1.2x gate=soft thr=0.035 floor=0.10 HPF=250Hz LPF=2400Hz env=1.000

XC7109 Bidirectional Call (C55)

Mode: Push-to-Talk. Hold Talk to send PC microphone to XC7109 speaker (u8 / 8 kHz / 320 bytes per UDP packet).

C55 Quality Mode

AGC Mode

Browser mic (Chrome getUserMedia) Browser Echo Cancellation Browser Noise Suppression Browser Auto Gain Control

Changing browser mic processing requires Stop Call → Start Call.

C55 Noise Test Presets

Downlink HPF 120 Hz

Downlink LPF 3.4 kHz

C55 Quality Notice: -

C55 Mode: -

C55 Pipeline: -

Uplink Monitor Ready: unknown

C55AJ mic diagnostics

C55 Actual Mic Track: unknown

C55 Mic Settings: unknown

C55 Raw Input avgAbs: 0

C55 Raw Input peak: 0

C55 Raw Input Status: unknown

C55AK pipeline trace（Server Live Pipeline、PTT 送 s16 時更新）

Processor Float avgAbs: 0

Processor Float peak: 0

Browser S16 avgAbs: 0

Browser S16 peak: 0

Browser S16 bytes/frame: 0

C55 Mic Test: idle

C55AM：將 Node 經 C55 Server Pipeline 送往 XC7109 的 u8@8k mono 320B 同步寫入檔案（與 UDP payload 相同），可用 ffplay 比對板端聽感。

C55 Capture: idle

C55 Capture File: -

Phase C4D — Demo (gain preset + session cleanup)

Device: —

Relay: —

PTT: idle

Relay mode: —

Mic permission: pending
AudioContext sampleRate: —
PTT active: no
Capture frames: 0
Send frames/sec: 0
Send bytes/sec: 0
u8 min / max / avgAbs: — / — / —
Gate: closed
Underrun: 0

Relay Mic Gain 7.0x

Recommended demo gain: 7.0 · HyperX SoloCast: 7.0–7.5 · If too quiet: 7.5 · If clipping: 5.0

Relay Gate (default OFF — always send 25 fps when PTT)

Downlink Mic Gain 2.5x

Server Pipeline Gain：C55_SERVER_PIPELINE_GAIN（預設 2.5），重啟 Node server 後生效；下方「Server Gain」為 API 回報值。

Recommended demo: Preset 4 (Clean No-AGC Demo) — Echo ON, NS ON, Chrome AGC OFF, Server Live Pipeline, Server Gain 2.5 (env).

C55 Downlink Noise Gate Threshold 0.020 Floor 0.10

Downlink AGC Target Level: 12

Downlink AGC Gain: 1.0x

C55 Mic Float avgAbs: 0

C55 Mic Float peak: 0

Raw Mic avgAbs: 0

Raw Mic peak: 0

After Gain avgAbs: 0

Noise estimate: 0

Stay silent for 2 seconds after clicking.

calibratedNoiseAvg: -

recommendedThreshold: -

Suggested threshold is shown only; adjust Gate Threshold slider manually if desired.

Downlink TX avgAbs: 0

Downlink TX min/max: -

Downlink TX level: unknown

C55 Warning: -

Mic hint (when TX near silence during PTT): check Chrome microphone device / input level / site permission.

Status: idle

Downlink packets: 0

Downlink bytes: 0

Server Pipeline packets (UDP): 0

Server Pipeline bytes (UDP): 0

Server S16 avgAbs (8 kHz block): 0

Server S16 peak: 0

Server U8 avgAbs: 0

Server U8 min/max: -

Server Gain: -

PTT: released

Idle