FreePBX allows calls to be recorded in the following formats:
WAV
WAV49
ULAW
ALAW
SLN
GSM
Each format has its own ratio of file size to recording quality, and certain formats will not play on all of the computers. A comparison between all of the available formats is as follows:
Format |
Description |
---|---|
WAV |
Uncompressed WAV format recording. Sound quality will be very good, but the file will be very large in size (roughly 1 megabyte per minute of the recording). WAV format recordings are natively playable on nearly all of the computers without additional software. |
WAV49 |
WAV format recorded using the GSM codec. As GSM is a compressed codec, the sound quality is compromised. Sound quality on a GSM recording is usually equivalent to the quality that is achieved during mobile telephone calls. File size is much smaller than a standard WAV (roughly 100 kilobytes per minute of the recording); WAV49 files are often difficult to play on computers without additional software that understands... |