SpecStream Audio Spectrum Plot

1.3.2

HARDCODED JOY S.R.L.

3.78

65 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 18 thousand times. In the last 30 days, the app was downloaded 410 times.

What is the rating of SpecStream Audio Spectrum Plot?

SpecStream Audio Spectrum Plot is rated 3.78 out of 5 stars, based on 65 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

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More data about SpecStream Audio Spectrum Plot

Price	Free to download
Total downloads	18 thousand
Recent downloads	410
Rating	3.78 based on 65 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

App Performance Report

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Alternative downloads for the SpecStream Audio Spectrum Plot app

SpecStream Audio Spectrum Plot compared with similar apps

Common keywords of similar apps

Sample Buffer Version Plot Devices Support Khz Min Max Displayed Milliseconds Grid Step Draw Division Lines Fixed Premium Configurable File Time Audio Spectrum App Rate Fft Size Frequency Hz Real Microphone Resolution

Keywords missing from this app

Sound Analyzer Level Amplitude Display Noise View Readout Meter Analysis Full Features Recent Peak High Signals Sdr Device Displays Rta Decibel Music Frequencies Signal Measurement Pro Spl Screen Spectrogram Mode Rtl Zoom Fast Weighting Radio Application Menu Added

Google Play Rating history and histogram

Downloads over time

SpecStream Audio Spectrum Plot has been downloaded 18 thousand times. Over the past 30 days, it averaged 14 downloads per day.

Changelog of SpecStream Audio Spectrum Plot

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Developer information for HARDCODED JOY S.R.L.

HARDCODED JOY S.R.L.

support@hardcodedjoy.com

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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 7 libraries.
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