Missing logarithmic functionality
On the iPad Air 5, the logarithmic measurements show gaps in the measurements that look like single lines going across the screen instead of a full spectrum that appears when in linear mode.
Free
In-App Purchases
About
Visualize voice frequencies in a spectrogram from 20-2500Hz. Adjust display with sliders and log recordings to export as PNG files. Functions fully offline and supports background processing.
✓Real-time voice spectrogram display
✓Adjustable frequency range (20-2500Hz)
✓Zoomable spectrogram with pinch gestures
✓Customizable spectrogram gradation
✓Logging mode with history export
✓Offline functionality
Show original description
What's New in Voice Spectrogram Logger
1.9
December 23, 2025
Built with Xcode 26.2 and the latest SDKs.
1
In-App Purchases
$3.99
Remove Ads
Remove Ads
User reviews
Developer apps
FAQ
What is the frequency range displayed by Voice Spectrogram Logger?
Voice Spectrogram Logger displays the spectrogram of voice in the range of 20 - 2500Hz. This allows for detailed analysis of lower to mid-range vocal frequencies.
Can I export my recorded spectrograms?
Yes, when the 'log' switch is ON, you can choose a past log from the 'History' tab and pull it via email as a PNG file. This makes it easy to share or further analyze your recordings.
Does Voice Spectrogram Logger require an internet connection to function?
No, the full functions of Voice Spectrogram Logger are available without cellular data service. It is designed to work offline, making it convenient for use anywhere.
How can I adjust the spectrogram's appearance in Voice Spectrogram Logger?
You can control the gradation of the spectrogram by moving the 'vivid' slider. Additionally, in the 'Setting' tab, you can adjust the 'baseline' slider and select 'Mean' or 'RMS' for smoothing.
What technical specifications does Voice Spectrogram Logger use for audio processing?
The app utilizes a sample rate of 44.1kHz, a bit depth of 32bit float, a Blackman FFT window function, and 4096 FFT samples for its audio processing.
What devices is Voice Spectrogram Logger compatible with?
Voice Spectrogram Logger is supported on iPhone, iPad, and iPod devices. It also supports landscape orientation for a better viewing experience.
How often is Voice Spectrogram Logger updated?
The latest version of Voice Spectrogram Logger is 1.9, last updated on December 23, 2025. This indicates a recent update, suggesting ongoing development and support.
What is the user sentiment for Voice Spectrogram Logger based on ratings?
Voice Spectrogram Logger has a rating of 1.0 stars from 1 rating. This single rating suggests potential areas for improvement or a limited user base providing feedback.
