File Formats

This section references the file formats compatible with Sound: Analysis and Specification.

Input File Formats

Input formats

Description

WAV (*.wav)

Waveform Audio File Format for the storage of raw and uncompressed audio.

Note that Sound: Analysis and Specification can open standard WAV files but also proprietary Sound: Analysis and Specification WAV files, (some) LMS WAV files and OROS WAV files.

DEWESOFT (*.d7d)

Audio file produced by an acquisition front-end of the DEWESOFT company.

DEWESOFT (*.dxd)

Audio file produced by an acquisition front-end of the DEWESOFT company.

Time-frequency (*.tf)

The Sound: Analysis and Specification proprietary format for Time-frequency representation storage.

Spectrum (*.spectre)

The Sound: Analysis and Specification proprietary format for spectrum storage.

Note: .spectre files saved in versions 2022 R2 or higher cannot be opened in versions previous to 2022 R2.

Spectrum (*.xml)

Spectrum file coming from Ansys Mechanical simulation.

*.UFF, *.UNV

The Universal File Format as specified by SDRL (www.sdrl.uc.edu). Only UFF types 58 and 58b are supported. Additionally, Sound: Analysis and Specification only supports the following settings:

  • Record 6 Field 1 (DOF Identification Function Type) must be set to either 0 (General or Unknown) or 1 (Time Response)
  • Record 7 Field 3 (Abscissa Spacing) must be set to 1 (even)

Time sample (*.txt, *.csv)

The Sound: Analysis and Specification proprietary format for time samples. File with a specific header and including 1 to n columns.

Time sample (*.out)
The following features of Sound: Analysis and Specification support files with the extension .out created by Ansys Fluent which contain samples vs. time:

Frequency response (*.txt, *.csv)

The Sound: Analysis and Specification proprietary format for frequency response.

This file contains the frequency and amplitude of a frequency response.

It must include:

  • on line 1, the header AnsysSound_FRF 1
  • on lines 2 to N, 2 columns:
    • the first column is Frequency in Hertz,
    • the second column is gain in dB.

Harmonics (orders)

(*.txt, *.csv)

The Sound: Analysis and Specification proprietary format for level of orders vs rpm. File with a specific header.

Harmonics (orders)

(*.ord)

The Sound: Analysis and Specification proprietary format for level of orders.

Harmonics (orders)

(*.xml)

Harmonics file coming from Ansys Mechanical simulation.

Spectrum (*.txt, *.csv)

(For Sound Synthesis, see Sound Creation from Spectrum, Sound Composer Source Types, and Source Formats)

The Sound: Analysis and Specification proprietary format for spectrum. File with a specific header and including 2 columns: Frequency (in Hz) and amplitude (in dB).
Spectrum from Ansys Mechanical (*.txt) The following file formats are produced by Ansys Mechanical when exporting single or multiple spectra, and are supported by Ansys Sound: Analysis and Specification when opening as a spectrum:
  • A simple text file with two columns (frequency, amplitude), with a title at the top of each column.
  • A text file with line numbers in the first column. When opening this file as a spectrum the column of line numbers will be ignored.
  • A text file with multiple columns. When opening as a spectrum, each column is considered as a single spectrum.
  • A complex text file with multiple columns, line numbers, irregularly-spaced frequency vector, and missing data. When opening, the column of line numbers will be ignored, and the frequencies will be interpolated to create regular spacing.
Tip: For more details on the text files supported as Sources in the Sound Composer, see Source Formats.

Output File Formats

Output file formats

Description

*.word

Microsoft Word document

*.xls

Microsoft Excel document

*.ascii

Text file (human readable)

*.txt

Text file (human readable)

Sound: Analysis and Specification WAV (*.wav)

The Sound: Analysis and Specification WAV proprietary format saves a file into a WAV file, including specific proprietary information (calibration channel name, physical unit, etc.).

The format supports the following bit depth settings:

  • 8 bit
  • 16 bit
  • 32 bit (int)
  • 32 bit (float)

The bit depth settings can be set in the Preferences window of the File menu.

WAV (*.wav)

The WAV format saves a file without the specific proprietary information of Sound: Analysis and Specification WAV format, but a normalization value is required. The normalization value is used to normalize the signal between -1 and 1. Every value outside this range will be clipped after the normalization.

The format supports the following bit depth settings:

  • 8 bit
  • 16 bit
  • 32 bit (int)
  • 32 bit (float)

The bit depth settings can be set in the Preferences window of the File menu.

*.UFF, *.UNV

The Universal File Format as specified by SDRL (www.sdrl.uc.edu). Only UFF types 58 and 58b are supported.

Time-frequency (*.tf)

The Sound: Analysis and Specification proprietary format for time-frequency representation storage.

Selection (*.sel)

The Sound: Analysis and Specification proprietary format for selection made in time-frequency representation.

Spectrum (*.spectre)

The Sound: Analysis and Specification proprietary format for spectrum representation storage.

Order (*.ord)

The Sound: Analysis and Specification proprietary format for orders.

Sound Composer Project (*.scn)

The Sound: Analysis and Specification proprietary format for Sound Composer Projects.

Source in Sound Composer projects (*.src)

The Sound: Analysis and Specification proprietary format for sources in Sound Composer Projects.

Track in Sound Composer projects (*.trk)

The Sound: Analysis and Specification proprietary format for tracks in Sound Composer Projects.