AP Guitar Tuner
AP Guitar Tuner was a free software tuner that used your computer's microphone to detect pitch and help tune guitars and other stringed instruments. It displayed an analog-style needle indicator showing whether each string was sharp, flat, or in tune.
What it did
You played a string near the microphone (or plugged in through a line input), and the program identified the note and showed how far off it was from the correct pitch. The needle swung left for flat and right for sharp, centering when the string was in tune. It displayed the detected frequency in Hz alongside the note name.
Multiple tuning presets covered standard tuning, Drop D, Open G, DADGAD, and others. Beyond guitar, it could tune bass, ukulele, violin, and mandolin by selecting the appropriate instrument profile with its expected string notes.
Advantages
- Free and accurate for basic tuning
- Worked with any microphone or line input
- Multiple instrument and tuning presets
- Simple visual indicator easy to read
Drawbacks
- No longer maintained or updated
- Required a computer with microphone (not portable)
- Less accurate than modern chromatic tuners
- Phone apps like GuitarTuna are free, portable, and more accurate
Who it was for
AP Guitar Tuner was for musicians who needed a quick, free way to tune their instrument using their PC. Smartphone tuner apps have completely replaced desktop tuning software - GuitarTuna, Pano Tuner, and dozens of others are free, always in your pocket, and work without needing a computer nearby.
Frequently Asked Questions
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Features & How-To Guide
| # | Feature | How to use |
|---|---|---|
| 1 | Guitar tuning via microphone | Connect a microphone or use the built-in one › Play a string › The needle shows the deviation from the note. |
| 2 | Automatic note detection | Play a string › The program automatically detects which note it is and shows the deviation. |
| 3 | Bass guitar tuning | Settings › Instrument › Bass Guitar › Stroj struny B-E-A-D-G. |
| 4 | Visual pitch deviation indicator | The analog needle shows whether the sound is too low or too high relative to the note. |
| 5 | Tuning in different tunings | Settings › Tuning › Select tuning (Standard/Drop D/Open G/DADGAD). |
| 6 | Violin and ukulele tuning | Settings › Instrument › Select Violin/Ukulele/Mandolin › Appropriate notes displayed. |
| 7 | Display audio frequency | During tuning the program shows the exact frequency in Hz. |
| 8 | Tuning from line input | Settings › Input › Line In › Connect the guitar via an audio interface. |
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