ConvertOnline

Image

Audio

Video

Document

Color

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

{
  "convert": "aac-opus",
  "multiple": true,
  "from": "aac",
  "to": "opus",
  "note": "Both AAC and Opus are lossy codecs. Opus generally offers better quality at lower bitrates and is optimized for web and real-time communication. Re-encoding from AAC to Opus will not improve quality but may reduce file size or improve compatibility.",
  "controls": [
    {
      "type": "dropdown",
      "name": "bitrate",
      "label": "Audio Bitrate",
      "options": [
        {
          "label": "32 kbps",
          "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": "Sets the target bitrate for Opus encoding. Lower bitrates reduce file size, while higher values preserve more detail. 128 kbps is a balanced default."
    },
    {
      "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 audio channels. Mono reduces size; stereo is recommended for music or media."
    },
    {
      "type": "dropdown",
      "name": "sample_rate",
      "label": "Sample Rate (Hz)",
      "options": [
        {
          "label": "16000 Hz",
          "value": 16000
        },
        {
          "label": "24000 Hz",
          "value": 24000
        },
        {
          "label": "48000 Hz (Recommended)",
          "value": 48000
        }
      ],
      "defaultValue": 48000,
      "desc": "Opus is optimized for 48000 Hz. Lower sample rates reduce quality and are mostly used for voice."
    }
  ],
  "type": "audio"
}