Audio recording#

Supported microhones#

Cinemate has been tested with RODE VideoMic NTG 24 bit microphone and simple 16 bit USB microphones.

Using the microphone#

1. Plug a USB microphone into the Pi.
2. Check for mic, bit depth and sample rate indicator on the left side of the gui. On the right side VU meters should show.
3. When recording .wav is written next to the .dng frames in the same take folder and a white "wav" label shows up next to the clip name below the preview.

Timecode is readable by DaVinci Resolve, which treats the .dng sequence and .wav as one clip.

settings.json audio section#

"audio": {
  "24bit": {
    "capture_gain_db": 0.0,
    "timecode_offset_frames": 0
  },
  "16bit": {
    "capture_gain_db": 0.0,
    "timecode_offset_frames": 0
  }
}

• 24bit — settings for the 24-bit USB dsnoop path (mic_24bit alias, e.g. RØDE VideoMic NTG).
• 16bit — settings for the 16-bit plain-arecord fallback path (generic USB PnP mics).

capture_gain_db is applied after Cinemate probes which path is active and knows the bit depth. 0.0 = unity gain; positive values boost, negative attenuate.

timecode_offset_frames enables manual offset of the embedded timecode. This can be useful if you see a constant offset in the sound. See also Audio sync & drift.