![exhale by output example exhale by output example](https://9to5mac.com/wp-content/uploads/sites/6/2017/02/exhale-notes-logic-pros-1.png)
The program loudness is measured according to ITU-R BS.1770-4, except that the analysis block size of 400ms is rounded to integer multiples of the audio frame duration.
![exhale by output example exhale by output example](https://musictech.com/wp-content/uploads/2016/09/ev1.png)
Note, however, that album loudness data is not explicitly supported by the exhale application (since it can only treat each audio file independently). See also the exhale release notes in the include subdirectory.
![exhale by output example exhale by output example](https://demo.vdocument.in/img/378x509/reader024/reader/2021012114/6008f5a4331ded367f2d51c6/r-2.jpg)
If you are talking about ReplayGain-style peak/loudness metadata: this is taken care of by the dynamic range control (DRC) metadata according to ISO/IEC 23003-4, which is supported since version 1.0.1 of this software. If, by metadata, you mean iTunes-style artist/song/cover metadata: no, and there currently is no plan to add support for this. Can the exhale application write or copy metadata to an encoded file? If there is a question you do not find an answer to, please notify one of the developers or ask the question in, e.g., the HydrogenAudio forum (you can find an existing discussion thread in the Other Lossy Codecs section). The following is a list of answers to questions regarding the use of the exhale application or library which are often being asked. Exhale Wiki :: Frequently Asked Questions (FAQ)