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Last updated on: 2026-05-21
Android Apps > Tools > SpecStream Audio Spectrum Plot
SpecStream Audio Spectrum Plot icon

SpecStream Audio Spectrum Plot

1.3.2
HARDCODED JOY S.R.L.
3.78
63 reviews
10,000+
Downloads
Free

View audio spectrum in real time

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About SpecStream Audio Spectrum Plot

SpecStream Audio Spectrum Plot is a tools app developed by HARDCODED JOY S.R.L..

How many times has SpecStream Audio Spectrum Plot been downloaded?

SpecStream Audio Spectrum Plot has been downloaded 17 thousand times. In the last 30 days, the app was downloaded 530 times.

What is the rating of SpecStream Audio Spectrum Plot?

SpecStream Audio Spectrum Plot is rated 3.78 out of 5 stars, based on 63 ratings.

Is SpecStream Audio Spectrum Plot free?

SpecStream Audio Spectrum Plot is free to download. The APK download size is 934.08 kB. The latest version available is 1.3.2. The last update was on October 5, 2025.

What are the requirements for SpecStream Audio Spectrum Plot?

SpecStream Audio Spectrum Plot requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play September 2016.

Description
App gets audio data from microphone and plots the real time spectrum in the form of a scrolling image.

App settings:
• Sample Rate = the sample rate (in Hz) at which the microphone will be read. Most devices support up to 48 kHz. High-end devices support up to 192 kHz.
• FFT Buffer Size = the size (in samples) of the audio buffer used to compute the FFT. Must be a power of 2, min = 128, max = 16384. Bigger value gives better frequency resolution. Smaller value gives better time resolution.
• Min. Dispalyed Frequency
• Max. Displayed Frequency
• Gain (dB)
• Displayed Time Window (in milliseconds)
• Frequency Grid Step (in Hz) = will draw horizontal division lines
• Time Grid Step (in milliseconds) = will draw vertical division lines moving together with the plot.

Free version limitations:
• sample rate = 8000 Hz (fixed)
• FFT buffer size = 512 (fixed)

Users can upgrade to Premium Version via in-app purchase (one time payment).

Premium version advantages:
• configurable sample rate.
• configurable FFT buffer size: 128, 256, 512, 1024, 2048, 4096, 8192, 16384.

Planned features for future app updates:
• show spectrum of audio file
• export spectrum to file

Recent changes:
- targetSdk 35
Show more Show less

More data about SpecStream Audio Spectrum Plot

Price Free to download
Total downloads 17 thousand
Recent downloads 530
Rating 3.78 based on 63 ratings
Ranking Not ranked
Version 1.3.2
APK size 934.1 KB
Number of libraries 7
Designed for Android 5.0+
Suitable for Everyone
Ads NO ads

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SpecStream Audio Spectrum Plot compared with similar apps

Keywords missing from this app

Sound Analyzer Level Amplitude Display Noise Readout Decibel View Weighting Meter Signal Device Full High Analysis Features Signals Recent Music Displays Peak Measurement Mode Db Rta Oscilloscope Screen Spl Spectrogram Zoom Frequencies Settings Scope Fast Pro Added Recording Levels

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Google Play Rating history and histogram

31
10
3
10
7

Downloads over time

SpecStream Audio Spectrum Plot has been downloaded 17 thousand times. Over the past 30 days, it averaged 18 downloads per day.

Changelog of SpecStream Audio Spectrum Plot

  • Oct 5, 2025UpdateVersion 1.3.2
  • Jul 30, 2025Installs10,000+ installs
  • Oct 12, 2024Installs5,000+ installs
  • Sep 25, 2024UpdateVersion 1.3.1
  • Dec 15, 2023UpdateVersion 1.2.0
  • Apr 10, 2023UpdateVersion 1.0.7
  • Oct 24, 2022UpdateVersion 1.0.4
  • Dec 1, 2020Installs1,000+ installs
  • Oct 28, 2019UpdateVersion 1.0.3
  • Apr 11, 2019Installs500+ installs
  • Oct 13, 2018UpdateVersion 1.0.2
  • Sep 6, 2016New AppVersion 1.0 in TOOLS for Free
Show more Show less

Developer information for HARDCODED JOY S.R.L.

HARDCODED JOY S.R.L.

support@hardcodedjoy.com

Website

N/A

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Comments on SpecStream Audio Spectrum Plot for Android

★★★★☆ Padua Play · Jan 19, 2026
Checking out this app. Is it possible to display decibel levels alongside spectrum information? Thanks for making available a functional app.
★★★★★ Marchantia Polymorpha · Aug 4, 2024
Simple but effective. Exactly what it should be. Only wish it would go above 4000Hz but that may be my devices' limitation I'm not sure.
★★★★★ Hehe Da · Nov 29, 2023
Can you add same options? Like minimum or maximum frequency. X y-axis unit display is necessary too
★★★★★ Chris Robinson · Nov 2, 2025
First spectrograph with no ads! Also instantaneous reading/display
★☆☆☆☆ Robert Zinda · Dec 5, 2022
When they say it's under development they really mean it. I'm not sure what purpose this serves, as it is now it makes no sense, display is tiny and even if it was larger it wouldn't be of any use. 1 touch stops the scrolling, but that's it. Results are meaningless tiny peaks without reference. No way to enlarge. Limited to 2kHz on top of it all, makes it kind of useless for any Audio testing. Not sure who the target user is for this?
★★☆☆☆ Ellen Ross · May 18, 2024
It needs more..............more!!!!! No way to enlarge, change colors, or set the frequency axes on this app. Just scans whatever it's listening to with no grid or graph 📉 behind it. (Wrong answer buzzer) Ehhhhhhh, no good.......
★☆☆☆☆ Anthony Orama · Sep 14, 2024
Horrible the second I loaded it horrible even the one I have is better than this do not install

Google Play Rankings for SpecStream Audio Spectrum Plot

This app is not ranked

Technologies used by SpecStream Audio Spectrum Plot

SpecStream Audio Spectrum Plot is requesting 4 permissions and is using 8 libraries.

Permissions

Network communication
view network connections, full network access, Google Play billing service
Hardware controls
record audio

Ad network libraries

None found

Social libraries

None found

Development tools

Android Jetpack core Android Library IconAndroid Jetpack core Android Architecture Components Android Library IconAndroid Architecture Components Android Jetpack VersionedParcelable Android Library IconAndroid Jetpack VersionedParcelable Android Jetpack Annotations Android Library IconAndroid Jetpack Annotations Android Jetpack Widgets Android Library IconAndroid Jetpack Widgets AndroidX Activity Android Library IconAndroidX Activity Android Activity Saved State Android Library IconAndroid Activity Saved State
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