OFR, short for OptimFROG, is proprietary
lossless audio data compression codec created by Florin
Ghido. OFR aims to optimize the high compression ratios and
the price of slower encoding and decoding as well. OptimFROG
DualStream which aims to fill gap between perceptual coding
and lossless coding is another format of OptimFROG file, both
of which could store the metadata by using PEv2 tags.
WMA is Windows Media Audio. WMA is a
new audio format developed by Microsoft well known as MP3.
With a higher rate in files compression and better sound
quality than the latter, even far beyond those of RA.
To convert OFR to wma, please install
OptimFrog DirectShow decoder filter.
WMA Converter which can
convert OFR to wma file. Select an ofr file, set the start
time, the end time or audio
encoding bitrate if needed. The bitrate is bigger, the file
size is bigger, the audio quality is higher, and vice versa.
Click the Convert button to convert OptimFROG *.ofr to wma.
VQF in its reality is the
Transform-domain Weighted Interleave Vector Quantization (TwinVQ
) technology developed by NTT Human Interface Laboratories
affiliated to Nippon Telegraph and Telephone Group in Japan.
VQF is an audio compression technology (SoundVQ) that enjoys the
support from the famous YAMAHA Corporation. Both VQF and TVQ
are its names of different types.
To convert vqf to wma, please install
its decoder based on DirectShow.