What is W64?
Audio Format DescriptionW64 is the file extension for the Sony Wave64 audio format. It was created by Sony for use with its Sound Forge, a digital audio editing and creation suite for use by the professional and semi-professional market.
Wave64 was created when the need was felt for a WAV file that could hold more than 4 GB of size. Since a Microsoft WAV file uses a 32 bit unsigned integer to record the file size header, it has a limit of 4 GB of file size (about 6 and a half hours of CD-quality audio, or 44.1 kHz of 16-bit stereo). Sound Forge needed a larger file size, hence Wave64 was developed according to its specifications.
Wave64 files have 64 bit internal structures that are capable of containing audio files of practically any length. Wave64 is a lossless codec, and as a result, it can hold only linear audio. It functions much like a WAV codec and can also contain compressed formats, like MP3, a-law, and u-law, besides such uncompressed sampled audio as PCM (Pulse Code Modulation) data. The convenient file size of Wave 64 also allows for the latest multi-channel and mdash with 5.1 surround, and 24-bit/96 kHz or 192 kHz audio.
The benefits of W64 include simple coding and decoding, and universal acceptance and support.
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