ConvertOnline

Image

Audio

Video

Document

Color

1. Convert Online
2. Audio Converters
3. FLAC to OPUS

{
  "convert": "flac-opus",
  "multiple": true,
  "from": "flac",
  "to": "opus",
  "note": "Opus is a modern compressed format optimized for both voice and music. Converting from FLAC (lossless) to Opus will reduce file size but may discard audio details. Ideal for web streaming and storage efficiency.",
  "controls": [
    {
      "type": "dropdown",
      "name": "bitrate",
      "label": "Audio Bitrate",
      "options": [
        {
          "label": "32 kbps (Low)",
          "value": "32k"
        },
        {
          "label": "64 kbps",
          "value": "64k"
        },
        {
          "label": "96 kbps",
          "value": "96k"
        },
        {
          "label": "128 kbps (Standard)",
          "value": "128k"
        },
        {
          "label": "160 kbps",
          "value": "160k"
        },
        {
          "label": "192 kbps",
          "value": "192k"
        }
      ],
      "defaultValue": "128k",
      "desc": "Specifies the target bitrate. Opus uses variable bitrate internally, but this value helps guide quality and file size. 128 kbps is standard for balanced quality."
    },
    {
      "type": "dropdown",
      "name": "channels",
      "label": "Audio Channels",
      "options": [
        {
          "label": "Mono (1 channel)",
          "value": 1
        },
        {
          "label": "Stereo (2 channels)",
          "value": 2
        }
      ],
      "defaultValue": 2,
      "desc": "Sets the number of output audio channels. Stereo is better for music; mono is sufficient for voice or smaller files."
    },
    {
      "type": "dropdown",
      "name": "sample_rate",
      "label": "Sample Rate (Hz)",
      "options": [
        {
          "label": "48000 Hz (Recommended)",
          "value": 48000
        },
        {
          "label": "24000 Hz",
          "value": 24000
        },
        {
          "label": "16000 Hz",
          "value": 16000
        },
        {
          "label": "8000 Hz (Low)",
          "value": 8000
        }
      ],
      "defaultValue": 48000,
      "desc": "Opus is internally optimized for 48000 Hz. Lower sample rates may reduce quality but are more efficient for voice or telephony use cases."
    }
  ],
  "type": "audio"
}