| # | Table Name | Field Name | Field Definition | Data Type | Enumerated Values |
| 1 | audiomd | audio_block_size | Size of an audio block in bytes. | Large signed number | NONE |
| 2 | audiomd | audio_data_encoding | Structure for audio data; current known types are pulse code modulation (PCM) and SONY's DSD structure. | Suggested Enumerated Type | NONE |
| 3 | audiomd | bits_per_sample | Number of bits per audio sample, e.g., 16, 20, 24, etc. | Large signed number | NONE |
| 4 | audiomd | calibration_ext_int | Indicator that the calibration information is contained within the file or externally. | SBCS(255) | NONE |
| 5 | audiomd | calibration_location | Temporary location of the calibration file if it is external, e.g. URL. | SBCS(255) | NONE |
| 6 | audiomd | calibration_type | Type of calibration, e.g., the ITU test sequences known as CCITT 0.33.00 (mono) and CCITT 0.33.01 (stereo). | SBCS(255) | NONE |
| 7 | audiomd | data_rate | Data rate of the audio in an MP3 or other compressed file, expressed in kbps, e.g., 64, 128, 256, etc. | Large signed number | NONE |
| 8 | audiomd | data_rate_mode | Indicator whether the data rate is fixed or variable. | Enumerated Type | Fixed, Variable |
| 9 | audiomd | duration | Elapsed time of the entire file, expressed using ISO 8601 syntax; see http://www.w3.org/TR/NOTE-datetime. | SBCS(255) | NONE |
| 10 | audiomd | first_sample_offset | Location of the first valid sound byte in the file. | Large signed number | NONE |
| 11 | audiomd | first_valid_byte_block | Location of the first valid sound byte in the block. | Large signed number | NONE |
| 12 | audiomd | last_valid_byte_block | Location of the last valid sound byte in the block. | Large signed number | NONE |
| 13 | audiomd | note | Additional information or comments about the audio file. | SBCS(2000) | NONE |
| 14 | audiomd | num_channels | Number of audio channels, e.g., 1, 2, 4, 5, etc. See also sound_channel_map. | Large signed number | NONE |
| 15 | audiomd | sampling_frequency | Rate at which the audio was sampled, expressed in kHz, e.g., 22, 44.1, 48, 96, etc. | Large signed number | NONE |
| 16 | audiomd | sound_channel_map | Information about the channel configuration, e.g., mapping the audio channel to their intended aural position/loudspeakers. The values represent parseable compound metadata using commas as separators, e.g., 1=left_front, 2=right_front, 3=center, 4=left_ | Suggested Enumerated Type | NONE |
| 17 | audiomd | sound_field | Indicates aural space arrangement of the sound recording, e.g., monaural, stereo, joint stereo, surround sound DTS 5.1, etc. MAVIS codes exist. | Suggested Enumerated Type | NONE |
| 18 | audiomd | word_size | Number of bytes that comprise a single sample of audio data, which generally maps to bits_per_sample. Files with a bit depth of 24 will usually be expressed as a 3-byte word_size; however, some applications may store 24-bit audio in a 4-byte word. | Large signed number | NONE |