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AMR to AIFF Converter

Convert AMR to AIFF

AMR to AIFF Converter converts AMR files to AIFF. The converter focuses on AIFF file that supports almost all codecs in AIFF specification, for example, pcm 8-bit, pcm 16-bit, pcm 24-bit, pcm 32-bit, pcm 32-bit float, pcm 64-bit float, a-Law, mu-Law, IEEE 754 float, ima4, gsm, dwvw, and so on. The software also supports common file format such as AAC, AAC for iPod/iPhone/iPad/iTunes/DSi, AWB, AMR, M4A (MPEG-4 audio), OGG, MMF, M4R (iPhone ringtone), etc. It could convert MOV to MP3, MTS to AAC, ADTS to AC3, MPEG to M4R (iPhone ringtone), MOV to OGG, ALAW to M4R (iPhone ringtone), and so on.

The software is very easy to use and supports batch conversion. It is full compatible with 32-bit and 64-bit Windows 10/8/7/Vista/XP/2000.

AMR to AIFF Converter is compatible with Windows 10/8/7/Vista/XP/2008/2003/2000

What is AMR?
Adaptive Multi-Rate (AMR) is an audio data compression scheme optimized for speech coding. AMR was adopted as the standard speech codec by 3GPP in October 1998 and is now widely used in GSM and UMTS. It uses link adaptation to select from one of eight different bit rates based on link conditions. AMR is also a file format for storing spoken audio using the AMR codec. Many modern mobile telephone handsets will allow you to store short recordings in the AMR format. There also exists another storage format for AMR that is suitable for applications with more advanced demands on the storage format, like random access or synchronization with video. This format is the 3GPP-specified 3GP container format based on ISO base media file format.

Key Features:

  • Sampling frequency 8 kHz/13-bit (160 samples for 20 ms frames), filtered to 200-3400 Hz.
  • The AMR codec uses eight source codecs with bit-rates of 12.2, 10.2, 7.95, 7.40, 6.70, 5.90, 5.15 and 4.75 kbit/s.
  • Generates frame length of 95, 103, 118, 134, 148, 159, 204, or 244 bits for bit rates 4.75, 5.15, 5.90, 6.70, 7.40, 7.95, 10.2, or 12.2 kbit/s, respectively
  • AMR utilizes Discontinuous Transmission (DTX), with Voice Activity Detection (VAD) and Comfort Noise Generation (CNG) to reduce bandwidth usage during silence periods
  • Algorithmic delay is 20 ms per frame. For bit-rates of 12.2, there is no 'algorithm' look-ahead delay. For other rates, look-ahead delay is 5 ms. Note that there is 5 ms 'dummy' look-ahead delay, to allow seamless frame-wise mode switching with the rest of rates.
  • AMR is a hybrid speech coder which uses Algebraic Code Excited Linear Prediction (ACELP)
  • The complexity of the algorithm is rated at 5, using a relative scale where G.711 is 1 and G.729a is 15.
  • PSQM testing under ideal conditions yields Mean Opinion Scores of 4.14 for AMR (12.2 kbit/s), compared to 4.45 for G.711 (u-law)
  • PSQM testing under network stress yields Mean Opinion Scores of 3.79 for AMR (12.2 kbit/s), compared to 4.13 for G.711 (u-law)

What is AIFF?
Audio Interchange File Format (AIFF) is an audio file format standard used for storing sound data for personal computers and other electronic audio devices. The format was co-developed by Apple Computer in 1988 based on Electronic Arts' Interchange File Format (IFF, widely used on Amiga systems) and is most commonly used on Apple Macintosh computer systems. AIFF is also used by Silicon Graphics Incorporated. The audio data in a standard AIFF file is uncompressed big-endian pulse-code modulation (PCM). There is also a compressed variant of AIFF known as AIFF-C or AIFC, with various defined compression codecs.

Standard AIFF is a leading format (along with SDII and WAV) used by professional-level audio and video applications, and unlike the better-known lossy MP3 format, it is non-compressed (which aids rapid streaming of multiple audio files from disk to the application), and lossless. Like any non-compressed, lossless format, it uses much more disk space than MP3¡ªabout 10MB for one minute of stereo audio at a sample rate of 44.1 kHz and a sample size of 16 bits. In addition to audio data, AIFF can include loop point data and the musical note of a sample, for use by hardware samplers and musical applications.

The file extension for the standard AIFF format is .aiff or .aif. For the compressed variants it is supposed to be .aifc, but .aiff or .aif are accepted as well by audio applications supporting the format.

  1. Free Download AMR to AIFF Converter
  2. Install the software by instructions
  3. Launch AMR to AIFF Converter
  4. Choose AMR Files

  5. Click Add Files
    Click "Add Files" to choose AMR files and then add them to conversion list.

    Choose one or more AMR files
    Choose one or more AMR files you want to convert and then click Open.

  6. Choose "to AIFF"

  7. Convert to AIFF

  8. Convert AMR to AIFF

  9. Click Convert
    Click on "Convert" to convert AMR files to AIFF format; alternatively, click on "Convert to One" to convert all files in list and combine to a single one AIFF file.

    Converting AMR to AIFF
    The software is converting AMR files to AIFF format.

  10. Play and Browse AIFF File

  11. Play and Browse AC3 File
    When conversion completes, you could right-click on converted file and choose "Play Destination" to play the AIFF file; or choose "Browse Destination Folder" to open Windows Explorer to browse the outputted AIFF file.

AMR to AIFF Converter is 100% clean and safe to install. It's certified by major download sites.
AMR to AIFF Converter is 100% Clean!

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