'I do have a text file which has raw PCM array, and I want to convert PCM to WAV, OGG file. The format uses containers to store the audio data, track numbers, sample rate and bit rate.6 Easiest Way for Converting PCM to WAV With Ease It was originally developed by Microsoft and IBM and stores uncompressed lossless audio which results in very large file sizes. One minor drawback is that the file sizes can be huge which can make them a little impractical.Ī file with the WAV file extension is a Waveform audio file format and is a container that stores data in segments. As they are stored in an uncompressed format they are enormously versatile and allow for easy editing and manipulation. It was originally developed back in 1991 for use within Windows 3.1 but today it is the gold standard in studio recording and one of the most popular digital audio formats. The WAV file is one of the simplest digital audio file formats. Further information on Multi-rate audio files.The AMR algorithm utilises link adaptation in order to be utilised with radio channel and capacity requirements.ģrd Generation Partnership Project (3GPP) 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 and has a sampling frequency of 8kHz which is filtered to 200-3400 Hz. The AMR file is often converted into other formats to allow for use and ease of distribution.

In 1999 AMR was adopted as the chosen speech standard for 3GPP.

Many phone providers use the AMR format to store short audio recordings but shouldn't really be used to store other audio such as music due to it's design. The Adaptive Multi-Rate format was specifically designed for speech coding.

How to convert a file to wav