- Convert Online
- Audio Converters
- AMR to M4A
Convert AMR to M4A
Convert AMR to M4A in your browser. Your audio files are processed on your device and are not uploaded.
128kSets the output bitrate for the M4A file. Higher bitrates offer better quality, but the original AMR source may not benefit much.
Sets the output bitrate for the M4A file. Higher bitrates offer better quality, but the original AMR source may not benefit much.
1AMR is mono only. You can convert to stereo for compatibility, but this won't add spatial detail.
AMR is mono only. You can convert to stereo for compatibility, but this won't add spatial detail.
8000AMR audio is recorded at 8000 Hz. You may upsample for compatibility, but it won't improve fidelity.
AMR audio is recorded at 8000 Hz. You may upsample for compatibility, but it won't improve fidelity.
4. Download converted files
Private browser conversion: Your files stay on your device. Large files may take longer, and some formats depend on browser codec support.
How to use this AMR to M4A Converter?
- Choose one or more files or drop them into the input area.
- Adjust the available settings, then click Convert. Processing stays in this browser; nothing is uploaded.
- Download each result or download a ZIP for multiple files. Results disappear when you leave this page.
{
"convert": "amr-m4a",
"multiple": true,
"from": "amr",
"to": "m4a",
"note": "AMR is a narrowband format limited to 8000 Hz mono audio. When converting to M4A, you can upsample or change channels, but this will not enhance audio quality — only improve compatibility.",
"controls": [
{
"type": "dropdown",
"name": "bitrate",
"label": "Audio Bitrate",
"options": [
{
"label": "64 kbps",
"value": "64k"
},
{
"label": "96 kbps",
"value": "96k"
},
{
"label": "128 kbps (Standard)",
"value": "128k"
},
{
"label": "192 kbps",
"value": "192k"
},
{
"label": "256 kbps",
"value": "256k"
}
],
"defaultValue": "128k",
"desc": "Sets the output bitrate for the M4A file. Higher bitrates offer better quality, but the original AMR source may not benefit much."
},
{
"type": "dropdown",
"name": "channels",
"label": "Audio Channels",
"options": [
{
"label": "Mono (1 channel)",
"value": 1
},
{
"label": "Stereo (2 channels)",
"value": 2
}
],
"defaultValue": 1,
"desc": "AMR is mono only. You can convert to stereo for compatibility, but this won't add spatial detail."
},
{
"type": "dropdown",
"name": "sample_rate",
"label": "Sample Rate (Hz)",
"options": [
{
"label": "8000 Hz (Original AMR)",
"value": 8000
},
{
"label": "22050 Hz",
"value": 22050
},
{
"label": "44100 Hz",
"value": 44100
}
],
"defaultValue": 8000,
"desc": "AMR audio is recorded at 8000 Hz. You may upsample for compatibility, but it won't improve fidelity."
}
],
"type": "audio",
"operation": "convert"
}
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