Overview
Hangout.audio allows you to apply AutoEQ to match your headphones or IEMs to my personal target curve—letting you hear exactly how my preferred EQ signature sounds across different audio gear. By limiting the correction range to 20Hz – 8000Hz, you preserve the natural ultra-high frequency response of your device while tailoring the fundamental tonal balance to my taste.
This guide uses the graph tool popularized by reviewers like Timmy Tuned and Gizaudio, which features a built-in database of frequency response measurements from sources like Crinacle and Squig. Rather than correcting to a "reference" standard, you're AutoEQing to my own preferred frequency response—making it easy to maintain consistent sound signature across multiple headphones or IEMs without manually tuning each one.
https://graph.hangout.audio
Limiting EQ to 8000Hz preserves the natural treble character of your headphones while correcting the
fundamental frequencies and most harmonics.
Prerequisites
- Web browser (Chrome, Firefox, Edge recommended)
- My target curve file (.txt or .csv format: Frequency Hz | SPL dB)
- EQ software ready:
- Windows: Equalizer APO + Peace GUI
- Android: Wavelet app
Step-by-Step Instructions
1
Access the Graph Tool
- Navigate to https://graph.hangout.audio
- The interface will load with a blank graph area
- Familiarize yourself with the left sidebar (database) and top toolbar
2
Select Your IEM or Headphone
- Look at the left sidebar for the database search
- Type your IEM/headphone name in the search box
- Click on your device from the dropdown results
- The frequency response graph will appear in the main area (usually in blue)
- If multiple measurements exist, select the most recent or trusted source (Crinacle, Squig, etc.)
Can't find your model? Try alternate names (e.g., "Moondrop Aria" vs "Aria 2021") or check if it's
listed under the manufacturer's full name.
3
Navigate to the Equalizer Tab
- Look for the tab bar at the top of the graph area (or right panel)
- Click on the "Equalizer" tab
- The interface will switch to EQ mode showing:
- Your selected headphone curve (dotted line)
- Target curve upload area
- Filter calculation options
4
Upload Your Target Curve
- In the Equalizer panel, find "Upload Target" or "Import Target"
- Click "Choose File" or drag-and-drop your target curve
- File format requirements:
- Plain text file (.txt or .csv)
- Two columns: Frequency (Hz) and SPL (dB)
- Space, tab, or comma separated
- No headers (or headers starting with #)
- The target curve will appear on the graph (usually in red/orange)
Ensure your target curve covers at least 20Hz to 8000Hz. The tool will interpolate if needed, but gaps
in the target may cause calculation errors.
5
Set Frequency Range, Run AutoEQ & Download
Configure the AutoEQ to only calculate corrections within your specified range:
Minimum Frequency
20 Hz
Maximum Frequency
8000 Hz
- Set Min to 20 and Max to 8000 (crucial step - default is usually 20000).
- Click the "AutoEQ" button and wait for the calculation.
- Review the green predicted line against your red target curve.
- Find the "Download" or "Export" buttons below the graph to save
your generated filters:
- For Windows (Peace APO): Click "Parametric EQ" or "Peace"
- For Android (Wavelet): Click "Graphic EQ" or "Wavelet"
Setting Max to 8000Hz prevents the algorithm from trying to correct ultra-high frequencies where
measurements are often unreliable and personal hearing varies significantly.
Peace APO
Windows System-Wide EQ
Wavelet
Android AutoEQ Import
Do not mix up the formats! Peace APO uses Parametric EQ (Frequency, Gain, Q), while Wavelet uses Graphic
EQ (fixed frequency bands with gain values only).
6
Apply to Your System
For Windows (Peace APO):
- Open Peace Equalizer (runs on top of Equalizer APO)
- Click "Import" → "From file"
- Select the downloaded .txt file
- Verify filters loaded correctly in the interface
- Click "On" to enable EQ
For Android (Wavelet):
- Open Wavelet app
- Go to "AutoEQ" section
- Tap "Import" and select the downloaded file
- Or manually copy-paste the values into Graphic EQ bands
- Enable "Graphic EQ" toggle
Filter 1: ON PK Fc 105 Hz Gain 3.5 dB Q 0.70
Filter 2: ON PK Fc 220 Hz Gain -2.1 dB Q 1.20
Filter 3: ON PK Fc 850 Hz Gain 1.8 dB Q 2.00
Filter 2: ON PK Fc 220 Hz Gain -2.1 dB Q 1.20
Filter 3: ON PK Fc 850 Hz Gain 1.8 dB Q 2.00
- PK = Peaking filter (most common)
- LSC = Low Shelf (for bass adjustments)
- HSC = High Shelf (for treble adjustments)
- Fc = Center frequency
- Q = Width (higher = narrower)
Wavelet Format (Graphic EQ)
Fixed 10-band or 15-band format:
31: -2.5
62: +1.2
125: +3.0
... (frequency: gain)
62: +1.2
125: +3.0
... (frequency: gain)
Troubleshooting
Target curve not loading? Check that your file has no headers and uses plain numbers.
Format: "20 0.5" (freq dB) on each line.
AutoEQ button grayed out? Ensure you have both a headphone selected AND a target
uploaded.
Both curves must be visible on the graph.
Downloaded file won't import? Peace APO needs the specific format with "Filter X: ON
PK..."
headers. Wavelet needs simple "freq: gain" pairs. Don't swap them!
Quick Reference
Website
graph.hangout.audio
Tab
Equalizer
Min Freq
20 Hz
Max Freq
8000 Hz
Windows Format
Parametric EQ
Android Format
Graphic EQ