Exporting Filters

Why Export Filters?

While Sounn provides built-in real-time correction, you might want to export filters for:

• Hardware DSP: miniDSP, DDRC, or similar devices that apply correction independently of your computer
• DAW/Recording: Apply room correction in your recording software for monitoring
• Convolution plugins: Use filters in software like Roon, HQPlayer, or systemwide convolvers
• Backup: Keep copies of your correction filters separate from Sounn
• Sharing: Provide filters to others with similar setups (though room-specific correction usually doesn't transfer well)

Export Formats

WAV Impulse Response

A WAV file containing the FIR filter impulse response. This is the most universal format, compatible with any convolution engine.

• Sample rates: 44.1, 48, 88.2, 96, 176.4, 192 kHz
• Bit depth: 32-bit float or 24-bit integer
• Channels: Stereo (L/R) or separate mono files

Text/CSV Coefficient Export

Raw filter coefficients in text format. Useful for:

• Hardware DSPs that accept coefficient files
• Custom implementations
• Analysis in MATLAB/Python

REW Format

Compatible with Room EQ Wizard for viewing, analysis, or further processing.

Parametric EQ Export

Exports the IIR portion as a list of parametric EQ bands:

• Generic: Frequency, gain, Q for each band
• APO format: For Equalizer APO (Windows)
• AU format: For Audio Units (macOS)

How to Export

Export Steps

1. Generate a correction filter (see Generating Filters guide)
2. Go to File > Export Filter... or press Cmd+E
3. Choose your export format
4. Configure format-specific options (sample rate, bit depth)
5. Choose a save location
6. Click Export

Export Options

Sample Rate

Choose the sample rate that matches your playback system:

• CD audio / most streaming: 44.1 kHz
• Video / professional audio: 48 kHz
• High-resolution audio: 88.2, 96, or higher

Channels

• Stereo interleaved: Single file with L/R channels
• Separate mono: Two files, one per channel

Normalization

• Peak normalize: Scales filter so loudest point is 0 dB
• Preserve gain: Maintains original filter gain

Using Exported Filters

miniDSP Devices

1. Export as WAV impulse response at 48 kHz
2. Open miniDSP plugin software
3. Load WAV into the FIR filter blocks
4. Ensure correct channel assignment

Roon DSP Engine

1. Export as WAV at your preferred sample rate
2. In Roon, go to DSP Engine settings
3. Add a Convolution filter
4. Browse to your exported WAV file
5. Enable the filter

AU Lab / Logic Pro

1. Export as WAV or use Parametric EQ export
2. For WAV: Use Space Designer or similar convolution reverb
3. For PEQ: Use Channel EQ with exported settings

Equalizer APO (Windows)

1. Export as APO format parametric EQ
2. Copy settings to your APO config file
3. Or export WAV and use Convolver plugin