Spectroid
ID: org.intoorbit.spectrum
-
Version:
Varies with device
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Update on:
2022-09-11
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The description of Spectroid
Spectroid is a real-time audio spectrum analyzer with reasonable frequency resolution across the the entire frequency spectrum.
💬 FAQ 💬
Q: Why are the dB values negative?
A: Spectroid uses dBFS (Full Scale) where 0 dB is the maximum power that the microphone can measure, so the decibel values are negative because the measured power is less than the maximum power.
Q: Can I zoom in on the spectrum plot?
A: Yes, do a two-finger pinch-to-zoom gesture.
Q: Why are there discontinuities/gaps in the spectrum plot and waterfall?
A: Spectroid uses multiple FFTs overlapped in frequency in order to provide better frequency resolution at lower frequencies than a single FFT. The caveat of this method is varied impulse response and minor discontinuities in frequency. The upside is that it can efficiently produce a spectrum that better matches the frequency resolution of human audio perception. It's still probably not as good as your ears though!
Q: Can I export the spectrum data?
A: Spectroid doesn't make your device a calibrated instrument. If you need the spectrum data then you should be using an actual spectrum analyzer rather than an app on your mobile device.
💬 FAQ 💬
Q: Why are the dB values negative?
A: Spectroid uses dBFS (Full Scale) where 0 dB is the maximum power that the microphone can measure, so the decibel values are negative because the measured power is less than the maximum power.
Q: Can I zoom in on the spectrum plot?
A: Yes, do a two-finger pinch-to-zoom gesture.
Q: Why are there discontinuities/gaps in the spectrum plot and waterfall?
A: Spectroid uses multiple FFTs overlapped in frequency in order to provide better frequency resolution at lower frequencies than a single FFT. The caveat of this method is varied impulse response and minor discontinuities in frequency. The upside is that it can efficiently produce a spectrum that better matches the frequency resolution of human audio perception. It's still probably not as good as your ears though!
Q: Can I export the spectrum data?
A: Spectroid doesn't make your device a calibrated instrument. If you need the spectrum data then you should be using an actual spectrum analyzer rather than an app on your mobile device.
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Spectroid Varies with device APK for Android Varies with device+
Version | Varies with device for Android Varies with device+ |
Update on | 2022-09-11 |
Installs | 1.000.000++ |
File size | 115.977 bytes |
Permissions | view permissions |
What's new | ◆ Improve usability on high-density displays |
Versions history:
- 1. LATEST. Spectroid Varies with device APK (2022-09-11, 113 KB)
- 2. Spectroid Varies with device APK (2018-08-07, 113 KB)
- 3. Spectroid 1.1.0 APK (2022-10-01, 111 KB)
- 4. Spectroid 1.0 APK (2017-08-18, 105 KB)
- 5. Spectroid 0.10.1.1 APK (2017-08-05, 105 KB)
- 6. Spectroid 0.10.1.1 APK (2022-09-28, 105 KB)
- 7. Spectroid 0.10.1 APK (2022-09-16, 113 KB)
- 8. Spectroid 0.10.0 APK (2017-06-18, 115 KB)
- 9. Spectroid 0.9.2 APK (2022-10-02, 105 KB)
- 10. Spectroid 0.9.2 APK (2017-05-24, 113 KB)
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