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+ | + | % Generated by roxygen2: do not edit by hand | +
| + | % Please edit documentation in R/emuR-metadata.R | +
| + | \name{add_digests} | +
| + | \alias{add_digests} | +
| + | \title{Add identifying information based on the content of the wave file to the metadata information for the bundle.} | +
| + | \usage{ | +
| + | add_digests( | +
| + | emuDBhandle, | +
| + | sessionPattern = ".*", | +
| + | bundlePattern = ".*", | +
| + | algorithm = "sha1" | +
| + | ) | +
| + | } | +
| + | \arguments{ | +
| + | \item{emuDBhandle}{The handle for the emuR database.} | +
| + | + | +
| + | \item{sessionPattern}{A regexp pattern that allows the user to limit which sessions should be affected by the manipulation.} | +
| + | + | +
| + | \item{bundlePattern}{A regexp pattern that allows the user to limit which bundles to include.} | +
| + | + | +
| + | \item{algorithm}{The name of the hashing algorithm, according to the \code{\link[digest]{digest}} function.} | +
| + | } | +
| + | \description{ | +
| + | This function will extract information (lenght of recording and a checksum) from the wav file associated with a bundle, and add it to the set of metadata | +
| + | for the bundle. This information can later be used to verify that the file has not been altered later on, or to deidentify | +
| + | wav files in a reversable manner for use outside of the emuR framework. Deidentified files are sometimes useful for blinded randomized | +
| + | perceptual testing, and the ability to reverse the procedure is then essential to link the results of the evaluation back to the original | +
| + | recording extracted from the emuR data base. The user may create checksums by multiple algorithms by running the function again with different \code{algorithm} arguments. | +
| + | } | +
| + | \examples{ | +
| + | \dontrun{ | +
| + | create_emuRdemoData() | +
| + | ae <- load_emuDB(file.path(tempdir(),"emuR_demoData","ae_emuDB")) | +
| + | + | +
| + | #Add a md5 digest to the metadata of all bundles | +
| + | add_digests(ae,algorithm = "md5") | +
| + | + | +
| + | #Add a "sha1" checksum (the default) to some bundles | +
| + | add_digests(ae,bundlePattern = "msajc0.*") | +
| + | get_metadata(ae) -> res | +
| + | print(res) | +
| + | rm(ae) | +
| + | unlink(file.path(tempdir(),"emuR_demoData"),recursive=TRUE) | +
| + | } | +
| + | + | +
| + | } | +