Wave file archive

Observations for the current year are stored in monthly files for each station. For a description of each file format and contents, see the measurement descriptions page. You can access these files in three different ways. Second, you can click on the historical data tab on top of the map of the home page. This will provide you with maps showing the locations of our historical data. Finally, you can go to our tabular index of historical data files.

Please see your browser settings for this feature. EMBED for wordpress. Want more? Advanced embedding details, examples, and help! Topics audio clips , sound effects , WAV files , sound files. Addeddate Identifier WavFiles. The 'fact' chunk will be expanded to include any other information required by future WAVE formats. Applications can use the chunk size field to determine which fields are present. The 'labl' and 'note' chunks have similar fields. The 'labl' chunk contains a label, or title, to associate with a cue point.

The 'note' chunk contains comment text for a cue point. The fields are as follows:. The "ltxt" chunk contains text that is associated with a data segment of specific length. The chunk fields are as follows:. Specifies the file type contained in the fileData field. A four-character code that identifies the representation of the chunk data data. A program reading a RIFF file can skip over any chunk whose chunk ID it doesn't recognize; it simply skips the number of bytes specified by ckSize plus the pad byte, if present.

A bit unsigned value identifying the size of ckData. This size value does not include the size of the ckID or ckSize fields or the pad byte at the end of ckData. Binary data of fixed or variable size. If the chunk size is an odd number of bytes, a pad byte with value zero is written after ckData. Word aligning improves access speed for chunks resident in memory and maintains compatibility with EA IFF.

The ckSize value does not include the pad byte. The average number of bytes per second at which the waveform data should be transferred. Playback software can estimate the buffer size using this value. The block alignment in bytes of the waveform data. Playback software needs to process a multiple of wBlockAlign bytes of data at a time, so the value of wBlockAlign can be used for buffer alignment. Note from Sharky: The above equation is what originally appeared in this document, but it is probably incorrect.

Specifies the sample position of the cue point. This is the sequential sample number within the play order. See "Playlist Chunk," later in this document, for a discussion of the play order.

Specifies the file position of the start of the chunk containing the cue point. This is a byte offset relative to the start of the data section of the 'wavl' LIST chunk.

Specifies the file position of the start of the block containing the position.