Signal Path

Signal Path

Record and view spectrums

2 ratings
6 reviews
$8.99

Details

  • Released
  • Updated
  • March 6, 2017
  • March 10, 2025
Signal Path video #1 for iPhone
Signal Path screenshot #2 for iPhone
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Signal Path screenshot #6 for iPhone
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About

Record and analyze audio spectrums with a beautiful interface. Inspect detailed spectrums, adjust amplitude thresholds, and manage file sizes. Supports various I/Q data formats and FFT lengths.

Record audio spectrums
Inspect spectrums with two-finger drag
Adjust amplitude thresholds
Manage recording file size
Open and save WAV files
Supports raw I/Q data formats
Multiple FFT lengths and window functions
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What's New in Signal Path

2.9

March 10, 2025

• Performance and compatibility improvements

User reviews

Fair Enough

The app in itself is fair enough but there are limitations. First nowhere to be found is help, maybe I’m missing something but I searched and searched to no avail.

Second is recording playback. I can record fine but when I try to playback all I get is about a fraction of a second of sound. Again, am I missing something?

No instructions anywhere on learning the app’s functions? Again, again, am I missing something?

Need help..
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works well enough, but has some inconveniences

I wanted to use this app to find the source of a high-pitched whine in my apartment, but it doesn't let you scroll left/right while recording, so I couldn't see the higher frequencies unless I stopped recording. I was able to figure it out, but it was inconvenient...

It's also not obvious to me how you select a time range in the graph; it seems to be related to tapping with two fingers, but I can't do it reliably.

Anyway, time to move the noisy thing to a different room :p thanks for the app
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Immensely helpful!

Tried my hand at doing the Peacekeeper Easter Egg for Battlefield 1 on PS4 and had no luck decoding it by ear, so after seeing the video on the page for this app and what looked like Morse Code in the spectrogram (I know it’s just the music but I was getting desperate) I bought this and there it was, clear as day! Couldn’t have gotten An Escalation, An Omen and soon A Beginning without it. Worth every penny just for that alone, but UI and the ability to save recordings into Files is very helpful.
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Bull crap

Nothing but a file folder ap doesn’t work at all should get my money back do not buy

Response from developer

Signal Path is a file based app for recording and reading data from files. New recordings can be created by tapping on the + button in the file selection/creation view.

Crashes when creating a new audio recording

Really promising app, unfortunately it crashes when you try to create a new audio recording from the menu. A fix would be greatly appreciated for a $9 app!

Response from developer

Thank you for reporting it and I am sorry for encountering this. This issue is fixed in version 1.5.

Developer apps

FAQ

What is Signal Path?

Signal Path is a mobile application designed for recording and viewing audio spectrums. It offers a high-performance spectrum viewing experience with a user-friendly interface.

How do I inspect spectrums in Signal Path?

You can select spectrums by using a two-finger drag gesture. Tapping on the histogram will reveal the amplitude value of the selected frequency bin.

Can Signal Path record audio spectrums?

Yes, Signal Path allows you to record audio spectrums using your device's microphone. You can then replay these recordings or open large files containing I/Q data.

What I/Q data formats does Signal Path support?

Signal Path supports various interleaved raw I/Q data formats, including Float, int8, int16, int32, uInt8, uInt16, and uInt32.

Does Signal Path have ads?

No, Signal Path does not contain advertisements. It is a paid application that offers an ad-free experience.

What is the price of Signal Path?

Signal Path is available for purchase at $8.99. This is a one-time payment for the application.

On which devices can I use Signal Path?

Signal Path is compatible with Mac, iPhone, and iPad devices, allowing for cross-platform use.

How often is Signal Path updated?

The latest version of Signal Path is 2.9, and it was last updated on March 10, 2025. Updates are released periodically to improve performance and add features.