File Formats | Sounn Docs

Import Formats

Calibration Files

Extension	Format	Description
.txt	Space/tab-separated	Frequency (Hz) and deviation (dB) pairs. miniDSP format.
.cal	REW calibration	Room EQ Wizard compatible calibration format.
.csv	Comma-separated	Standard CSV with frequency and dB columns.

Calibration File Format Example

20.0    -0.15
25.0    -0.10
31.5    -0.05
40.0     0.00
50.0     0.05
63.0     0.08
...
16000   -1.20
20000   -2.50

Measurement Files

Extension	Format	Description
.mdat	REW measurement	Room EQ Wizard measurement data.
.wav	Impulse response	WAV file containing room impulse response.

Export Formats

Impulse Response / FIR Filters

Extension	Options	Use Case
.wav	Sample rate: 44.1-192 kHz Bit depth: 16, 24, 32-float Channels: Stereo or mono	Convolution engines, hardware DSP, Roon, HQPlayer

Sample Rate Matching

Export at the same sample rate as your playback system to avoid resampling artifacts. 48 kHz is a safe choice for most systems.

Parametric EQ

Format	Extension	Use Case
Generic PEQ	.txt, .csv	Manual entry into any parametric EQ
Equalizer APO	.txt	Windows Equalizer APO config
AU Preset	.aupreset	macOS Audio Units (Logic, etc.)

Generic PEQ Format Example

# Sounn PEQ Export
# Freq (Hz), Gain (dB), Q
Filter 1: 63.0, -4.5, 2.8
Filter 2: 125.0, -3.2, 3.5
Filter 3: 250.0, +1.8, 4.0
Filter 4: 500.0, -2.1, 5.0
Filter 5: 1000.0, +0.5, 6.0

Analysis / Interchange

Format	Extension	Contents
REW Export	.mdat	Full measurement data for REW analysis
Frequency Response	.csv	Frequency (Hz), magnitude (dB), phase (degrees)
Impulse Response	.wav	Raw room impulse response

Session Files

Extension	Description
.sounn	Sounn session file containing all measurements, filters, and settings. The primary save format.

Session Backup

Session files contain everything needed to recreate your correction. Back them up regularly, and consider keeping sessions for different rooms or configurations.