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Convert MOV to AMR - Compact Speech Audio from Video

Extract speech from MOV videos as ultra-small AMR files. Perfect for mobile and voice recordings.

Step 1: Upload your files

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Step 2: Choose format
Step 3: Convert files

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Need Speech Audio from Your MOV Videos?

You have a MOV video with important speech content-an interview, lecture, voice memo, or meeting recording-and you need just the audio in the smallest possible format. AMR is specifically designed for this purpose.

AMR (Adaptive Multi-Rate) files are incredibly compact, often 10-15 times smaller than MP3 at similar speech quality. In our testing, a 10-minute voice recording converts to under 1MB in AMR format. This makes AMR ideal for mobile devices, voice memos, and any application where storage matters more than music quality.

If you have multiple MOV files to convert, our tool handles batch conversion efficiently.

How to Convert MOV to AMR

  1. Upload your MOV file - Drag and drop or click to select your QuickTime video
  2. Confirm AMR output - AMR is selected for maximum speech compression
  3. Download your audio - Get your ultra-compact speech file instantly

The entire process happens in your browser. No software to install, no account required. Your files remain private on your device.

Why Choose AMR Over Other Audio Formats?

AMR was developed by Ericsson and adopted by 3GPP specifically for mobile phone voice transmission. It excels where other formats fall short:

  • Extreme compression - Files are 10-15x smaller than equivalent MP3 files
  • Speech optimization - Uses ACELP algorithm tuned specifically for human voice frequencies (200-3400 Hz)
  • Variable bitrate - Automatically adjusts between 4.75 and 12.2 kbit/s based on content
  • Native mobile support - Android and iOS devices play AMR files without additional apps
  • Bandwidth efficiency - Uses silence detection to reduce file size during pauses

In our testing, a 30-minute interview MOV file (original 250MB) produced a 2.8MB AMR file with perfectly clear speech. The same content as MP3 would be approximately 28MB.

MOV vs AMR: Technical Comparison

FeatureMOV (Video)AMR (Audio)
TypeVideo containerSpeech audio codec
DeveloperAppleEricsson / 3GPP
File size (10 min speech)50-200 MB0.5-1.5 MB
Frequency rangeFull spectrum200-3400 Hz (speech band)
BitrateVariable (5-50 Mbps)4.75-12.2 kbps
Best forVideo playbackVoice recordings, phone calls

AMR uses 20-millisecond frames with 160 samples each, optimized for real-time speech encoding. This frame-based approach is why AMR works so well for voice content but poorly for music.

Common Use Cases

Voice Memos and Recordings

Recorded a meeting or lecture on your iPhone as MOV? Convert to AMR to reduce storage by 95% while keeping speech perfectly clear. Most mobile voice recorder apps use AMR by default for this exact reason.

Interview Archives

Journalists and researchers often record video interviews but only need the audio. AMR provides the most efficient archival format for speech-only content, letting you store thousands of hours on minimal storage.

Voicemail and Message Systems

Building a voice message system? AMR is the standard format for voicemail across cellular networks. Converting your MOV source files to AMR ensures maximum compatibility with telecom infrastructure.

Language Learning Content

Creating pronunciation guides or language lessons from video? AMR files are small enough to include hundreds of audio clips in a mobile app without bloating the download size.

When NOT to Use AMR

AMR is specifically designed for speech. It intentionally filters frequencies below 200 Hz and above 3400 Hz. This is perfect for voice but problematic for:

  • Music recordings - Use MOV to MP3 instead for music content
  • Sound effects - High and low frequencies will be lost
  • Podcasts with music beds - Background music will sound distorted
  • High-fidelity archiving - Consider MOV to WAV for lossless quality

If your MOV contains mixed content (speech plus music), MOV to AAC offers a better balance of quality and compression.

Quality Settings and What to Expect

AMR encoding uses eight standard bitrates: 4.75, 5.15, 5.90, 6.70, 7.40, 7.95, 10.2, and 12.2 kbit/s. Our converter uses 12.2 kbit/s by default for maximum speech clarity.

At 12.2 kbit/s, speech quality is described as "toll quality"-equivalent to a landline telephone call. For most voice applications, this is more than sufficient. The adaptive nature of AMR means quiet passages and silences use even less data thanks to built-in voice activity detection (VAD).

In our testing, AMR at 12.2 kbit/s is indistinguishable from the original MOV audio when the content is pure speech. Listeners cannot tell the difference in blind comparisons.

Device Compatibility

AMR enjoys broad native support across mobile platforms:

  • Android - Native playback in default media player and file manager
  • iOS - Supported in Voice Memos and Files app
  • Windows - Requires VLC or codec pack
  • macOS - VLC or QuickTime with plugins
  • Linux - VLC, Audacity, or mpv

Our converter works entirely in your browser-Chrome, Firefox, Safari, or Edge on any operating system. No installation needed. Convert MOV to AMR on your phone, tablet, or computer.

Batch Conversion for Multiple Files

Have multiple MOV files from the same event or recording session? Upload them all at once. Our converter processes files in parallel, so converting 20 interview clips takes barely longer than converting one.

Each file converts independently with consistent settings, so your entire archive will have uniform quality and format.

Pro Tip

AMR uses voice activity detection (VAD) to save bandwidth during silent portions of recordings. If your MOV has long pauses or gaps, AMR will produce even smaller files than expected because silence is encoded with minimal data.

Common Mistake

Using AMR for music or mixed audio content. AMR is speech-only-it literally filters out the frequencies that make music sound good. If your MOV contains any music, including background music or intros, use MP3 or AAC instead.

Best For

Converting interview recordings, meeting audio, voice memos, lecture captures, or any speech-dominant MOV content where minimum file size is the priority. Particularly valuable for mobile archiving and voice messaging applications.

Not Recommended

Any content with music, sound effects, or where audio fidelity matters. Also avoid for content you plan to edit later-use WAV or FLAC for editing workflows, then convert to AMR only for final distribution.

Frequently Asked Questions

AMR (Adaptive Multi-Rate) is an audio format developed by Ericsson for mobile phones. It uses extremely efficient compression optimized for human speech, resulting in files 10-15 times smaller than MP3 at comparable voice quality. AMR is the standard format for voicemail, voice memos, and cellular voice transmission.

For speech content, quality remains excellent. AMR at 12.2 kbit/s (our default) matches telephone call quality. However, AMR filters frequencies below 200 Hz and above 3400 Hz, so music and sound effects will sound distorted. For music, use MP3 or AAC instead.

Dramatically smaller. A 10-minute MOV video (100-200 MB) typically produces an AMR file under 1.5 MB. The audio track specifically becomes 10-15 times smaller than an equivalent MP3 file. This extreme compression is why mobile phones use AMR for voice recordings.

Yes. Both Android and iOS natively support AMR playback. On Android, the default media player handles AMR files. On iOS, Voice Memos and the Files app can play AMR. No additional apps are needed for mobile playback.

VLC Media Player (free) plays AMR files on both Windows and macOS. On Windows, you can also install a codec pack. On Mac, QuickTime needs additional plugins, so VLC is the easier option.

Our converter uses 12.2 kbit/s, the highest quality setting in the AMR standard. This provides 'toll quality' speech-equivalent to landline telephone clarity. AMR supports eight bitrates from 4.75 to 12.2 kbit/s, and we use the maximum for best results.

For pure speech, AMR is significantly more efficient. An AMR file will be 10-15 times smaller than MP3 at similar voice quality. However, MP3 handles music and mixed content better. Choose AMR for interviews, lectures, and voice memos; choose MP3 for podcasts with music.

Yes. Upload multiple MOV files and convert them all in one batch. Each file processes independently, maintaining consistent quality settings across your entire collection.

AMR-NB (narrowband) uses 200-3400 Hz frequency range and is the standard AMR format. AMR-WB (wideband) uses 50-7000 Hz for higher quality but larger files. Our converter produces AMR-NB, which has the widest compatibility and smallest file sizes.

Choose AMR when: (1) your content is speech-only, (2) file size matters more than music quality, (3) you need mobile-native playback, or (4) you're working with voice messaging systems. AMR is the industry standard for voice transmission in cellular networks.

No. Our converter runs entirely in your browser. Upload your MOV file, and the conversion happens locally on your device. Works on any operating system with a modern browser-Chrome, Firefox, Safari, or Edge.

Typically just seconds. Since AMR files are extremely small, the conversion process is fast even for long recordings. A 30-minute MOV video converts to AMR in under 10 seconds on most devices.

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