MP1 to AMR Converter

Convert MP1 to AMR online, for free.



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Audio Options
Choose a codec to encode or compress the audio stream. To use the most common codec, select "Auto" (recommended). To convert without re-encoding audio, choose "Copy" (not recommended).
100% represents the original volume. To double the volume, increase it to 200%. To reduce volume by half, select 50%
Enable if you want to reverse audio stream
Trim Settings
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Specify the end position of trim (HH:MM:SS). Leave at 00:00:00 to disable.


How to Convert MP1 to AMR?

  1. Click the “Choose Files” button to select your MP1 files.
  2. Click the “Convert to AMR” button to start the conversion.
  3. When the status change to “Done” click the “Download AMR” button

Easy to Use

Simply upload your MP1 files and click the convert button. You can also batch convert MP1 to AMR format.

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).

Free & Secure

Our MP1 to AMR Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 2 hours.


MPEG-1 Audio Layer 1 (MP1) is an earlier, simpler version of the MPEG audio standard. MP1 is mostly obsolete, but still supported. MP1 was part of the Digital Compact Cassette format. Almost all files that were MP1 were replaced by the newer MPEG-1 Audio Layer II (MP2) and MPEG-1 Audio Layer III or MPEG-2 Audio Layer III (MP3) file formats.

 

How to open an MP1 file?

Due to MP1 being largely obsolete, VLC media player is the best option for opening an MP1 file, with the bonus that this player works across platforms.

 

Other great media players for opening MP1 include Windows Media Player, Awave Studio, Winamp, and jetAudio.

 

Developed by: ISO/IEC, Moving Pictures Experts Group

Initial Release: 1993

Useful links:

https://en.wikipedia.org/wiki/MPEG-1_Audio_Layer_I

http://mpeg.chiariglione.org/standards/mpeg-1/audio

Adaptive Multi-Rate (AMR) is a compressed audio file that is often used for speech coding. The AMR speech codec focuses on narrowband signals, which makes it ideal for voice recordings and radio. It is used regularly in Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS).

 

How to open an AMR file?

Since AMR files are often used on mobile phones, including for MMS messaging, most 3G mobile devices are able to open them. AMR also opens with VLC media player, QuickTime, RealPlayer, and Xine.

 

Other software, such as the free audio-editing software Audacity, can open AMR files. Download audacity easily at SourceForge.net. Because AMR files are heavily compressed and focused on narrowband signals, they are not suitable for music files.

 

Developed by: 3rd Generation Partnership Project (3GPP)

Initial Release: 1999

Useful links:

https://en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio_codec

https://www.etsi.org/


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