ConvertOnline

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

{
  "convert": "wma-opus",
  "multiple": true,
  "from": "wma",
  "to": "opus",
  "note": "Opus is a modern, highly efficient audio format ideal for web streaming and voice communication. Converting from WMA may slightly reduce quality if the original bitrate is low, but Opus provides excellent compression and quality at lower bitrates.",
  "controls": [
    {
      "type": "dropdown",
      "name": "bitrate",
      "label": "Audio Bitrate",
      "options": [
        {
          "label": "16 kbps (Voice only)",
          "value": "16k"
        },
        {
          "label": "32 kbps",
          "value": "32k"
        },
        {
          "label": "64 kbps",
          "value": "64k"
        },
        {
          "label": "96 kbps (Web Streaming)",
          "value": "96k"
        },
        {
          "label": "128 kbps",
          "value": "128k"
        },
        {
          "label": "160 kbps (High)",
          "value": "160k"
        }
      ],
      "defaultValue": "96k",
      "desc": "Opus works best with lower bitrates while retaining good audio quality. 96 kbps is recommended for general-purpose audio. For speech, 32–64 kbps is often sufficient."
    },
    {
      "type": "dropdown",
      "name": "channels",
      "label": "Audio Channels",
      "options": [
        {
          "label": "Mono (1 channel)",
          "value": 1
        },
        {
          "label": "Stereo (2 channels)",
          "value": 2
        }
      ],
      "defaultValue": 2,
      "desc": "Choose the number of output audio channels. Stereo is standard, but mono may be preferred for speech or smaller file sizes."
    },
    {
      "type": "dropdown",
      "name": "sample_rate",
      "label": "Sample Rate (Hz)",
      "options": [
        {
          "label": "8000 Hz (Phone Quality)",
          "value": 8000
        },
        {
          "label": "16000 Hz",
          "value": 16000
        },
        {
          "label": "24000 Hz",
          "value": 24000
        },
        {
          "label": "48000 Hz (Default for Opus)",
          "value": 48000
        }
      ],
      "defaultValue": 48000,
      "desc": "Opus is natively optimized for 48000 Hz. Lower sample rates are useful for voice applications and reduce file size."
    }
  ],
  "type": "audio"
}