ConvertOnline

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Audio

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1. Convert Online
2. Audio Converters
3. M4R to FLAC

{
  "convert": "m4r-flac",
  "multiple": true,
  "from": "m4r",
  "to": "flac",
  "note": "M4R is typically an AAC-encoded iPhone ringtone format. Converting it to FLAC (lossless) won't improve quality but may be useful for archiving or editing.",
  "controls": [
    {
      "type": "dropdown",
      "name": "compression_level",
      "label": "FLAC Compression Level",
      "options": [
        {
          "label": "Fastest (Level 0)",
          "value": 0
        },
        {
          "label": "Level 2",
          "value": 2
        },
        {
          "label": "Level 5 (Default)",
          "value": 5
        },
        {
          "label": "Level 8 (Maximum)",
          "value": 8
        }
      ],
      "defaultValue": 5,
      "desc": "Controls the compression level for FLAC encoding. Higher levels reduce file size at the cost of encoding time. Level 5 is a good balance."
    },
    {
      "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. Ringtones are often mono, but stereo can be preserved if available."
    },
    {
      "type": "dropdown",
      "name": "sample_rate",
      "label": "Sample Rate (Hz)",
      "options": [
        {
          "label": "22050 Hz",
          "value": 22050
        },
        {
          "label": "44100 Hz (CD Quality)",
          "value": 44100
        },
        {
          "label": "48000 Hz",
          "value": 48000
        }
      ],
      "defaultValue": 44100,
      "desc": "Sets the audio sampling rate. 44100 Hz is standard for music and ringtones, providing good quality."
    }
  ],
  "type": "audio"
}