ProSpec Lite Spectrum Analyzer
Free App
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About ProSpec Lite Spectrum Analyzer
Join the discussion group:
https://groups.google.com/d/forum/prospec-discussion-group
User Manual:
http://www.digiphd.com/prospec-real-time-spectrum-analyzer-user-manual/
ProSpec - Lite is a basic Real time spectrum analysis tool. It generates a spectrogram on the fly and supports 8kHz and 44.1kHz sampling frequencies.
You can record, playback, save and share the spectrogram for a given time frame. It provides a maximum frequency tracking facility with measurements both in dBFS, (SPL in paid version only).
Other features include:
- Time scale in seconds
- Update speed
- Dynamic range control
- Complete color customisation
- RGB option
- For audio engineers, an invert feature for live events in dark rooms
- Audio tool, allowing you to share, save and listen to the complete audio that has been recorded
- Saving, sharing and exporting the configuration (i.e. analysis settings: window size, dynamic range, FFT length and analysis window)
NOTE: If you are not satisfied or find any issues with ProSpec, please tell me in the discussion group before leaving negative feedback, I may be able to resolve your issue in an update and your input will be invaluable to ProSpec's evolution. Thanks!
USEFUL FOR:
home theatre, audio engineer, car audio, linguistics, speech pathology, electronic engineer, tech savvy musicians, engineering and audiologist students
TECHNICAL INFORMATION
- FFT size fixed to 1024 for 8kHz and 512 for 44.1kHz
- Uses a moving window to calculate the FFT Magnitude spectrum
- Uses Hamming analysis window
- Frame Length fixed to 32ms
- Frame shift fixed to 14ms
- Dynamic range: -1dB to -90dB
- Bandwidth available: 50Hz - 22.05kHz
- Selectable update time from (10-40s)(also depends on frame length)
- JET RGB color scheme (and many many many others)
- Free version has watermarked images when saving or sharing
WORD FROM THE DEVELOPER:
I developed this tool to use personally and I believe it has some use to others in the community. ProSpec also has some major advantages over other real-time spectrogram apps available for free. e.g. time scale (x-axis labels), saving settings and sharing the audio and images, and maximum frequency tracking. These are all features I wanted a single tool to have, unfortunately all others seemed to fall short, hence ProSpec has been developed to accommodate my needs, and hopefully yours.
Tested Devices (Better suited for dual core devices):
Motorola Xoom with Android 4.0.4 (Good)
Samsung Galaxy S III (Quad core, AU release) with Android 4.0.4 (Good)
Sony Xperia with Android 4.0.4 (Good)
Motorola Atrix 2 with Android 2.3.6 (Good, must have sdcard installed)
HTC Desire HD with Android 2.3.5 (A bit slow)
Motorola Atrix with Android 2.3.4 (Good)
HTC Incredible S with Android 2.3.5 (A bit slow)
BUGS AND REPORTS:
Apologies for incompatibilities on devices other than the ones listed above, I have limited resources and don't have access to the thousands of phones and tablets out there. If you find any bugs or issues please take the time to e-mail me (miscanalysis@gmail.com) and include what you were doing at the time the bug occurred.
Like image was synthesised from accumulating sine waves into an audio file.
https://groups.google.com/d/forum/prospec-discussion-group
User Manual:
http://www.digiphd.com/prospec-real-time-spectrum-analyzer-user-manual/
ProSpec - Lite is a basic Real time spectrum analysis tool. It generates a spectrogram on the fly and supports 8kHz and 44.1kHz sampling frequencies.
You can record, playback, save and share the spectrogram for a given time frame. It provides a maximum frequency tracking facility with measurements both in dBFS, (SPL in paid version only).
Other features include:
- Time scale in seconds
- Update speed
- Dynamic range control
- Complete color customisation
- RGB option
- For audio engineers, an invert feature for live events in dark rooms
- Audio tool, allowing you to share, save and listen to the complete audio that has been recorded
- Saving, sharing and exporting the configuration (i.e. analysis settings: window size, dynamic range, FFT length and analysis window)
NOTE: If you are not satisfied or find any issues with ProSpec, please tell me in the discussion group before leaving negative feedback, I may be able to resolve your issue in an update and your input will be invaluable to ProSpec's evolution. Thanks!
USEFUL FOR:
home theatre, audio engineer, car audio, linguistics, speech pathology, electronic engineer, tech savvy musicians, engineering and audiologist students
TECHNICAL INFORMATION
- FFT size fixed to 1024 for 8kHz and 512 for 44.1kHz
- Uses a moving window to calculate the FFT Magnitude spectrum
- Uses Hamming analysis window
- Frame Length fixed to 32ms
- Frame shift fixed to 14ms
- Dynamic range: -1dB to -90dB
- Bandwidth available: 50Hz - 22.05kHz
- Selectable update time from (10-40s)(also depends on frame length)
- JET RGB color scheme (and many many many others)
- Free version has watermarked images when saving or sharing
WORD FROM THE DEVELOPER:
I developed this tool to use personally and I believe it has some use to others in the community. ProSpec also has some major advantages over other real-time spectrogram apps available for free. e.g. time scale (x-axis labels), saving settings and sharing the audio and images, and maximum frequency tracking. These are all features I wanted a single tool to have, unfortunately all others seemed to fall short, hence ProSpec has been developed to accommodate my needs, and hopefully yours.
Tested Devices (Better suited for dual core devices):
Motorola Xoom with Android 4.0.4 (Good)
Samsung Galaxy S III (Quad core, AU release) with Android 4.0.4 (Good)
Sony Xperia with Android 4.0.4 (Good)
Motorola Atrix 2 with Android 2.3.6 (Good, must have sdcard installed)
HTC Desire HD with Android 2.3.5 (A bit slow)
Motorola Atrix with Android 2.3.4 (Good)
HTC Incredible S with Android 2.3.5 (A bit slow)
BUGS AND REPORTS:
Apologies for incompatibilities on devices other than the ones listed above, I have limited resources and don't have access to the thousands of phones and tablets out there. If you find any bugs or issues please take the time to e-mail me (miscanalysis@gmail.com) and include what you were doing at the time the bug occurred.
Like image was synthesised from accumulating sine waves into an audio file.
All Application Badges
Free
downl.
downl.
Android
2.3.3+
2.3.3+
Bug
buster
buster
Android app
App History & Updates
What's Changed
Fixed a small bug for icecream sandwich devices which allows proper loading of application preferences.
v1.3 - Changes recommended by gdahlman,
* saving images and sharing to Facebook no longer cropped
* Screen shots during run time
* Better file browsing
Additional changes:
* Removal of affiliate adds (Not for me)
Fixed a small bug for icecream sandwich devices which allows proper loading of application preferences.
v1.3 - Changes recommended by gdahlman,
* saving images and sharing to Facebook no longer cropped
* Screen shots during run time
* Better file browsing
Additional changes:
* Removal of affiliate adds (Not for me)
More downloads ProSpec Lite Spectrum Analyzer reached 10 000 - 50 000 downloads
More downloads ProSpec Lite Spectrum Analyzer reached 10 000 - 50 000 downloads
What are users saying about ProSpec Lite Spectrum Analyzer
U
by U####:
by U####:
On my nexus 5 it stretch as across the screen . poor quality. Will rate higher if it will be fixed
Z
by Z####:
by Z####:
good if you want do have some visual EVP`s, 44,000hz waves dont play on xperia`s, so needs mp3 encoding
Z
by Z####:
by Z####:
Adding th zoom could be a nice evolution
T
by T####:
by T####:
Didn't do anything
Y
by Y####:
by Y####:
When I put lavender town it puts on two ghost and anorther thing unknown letters said leave now this is true
T
by T####:
by T####:
The frequency breakdown is bizarre by industry standards and essentially unusable.
T
by T####:
by T####:
This really helps me with stuff like lavender town missing frequency's
H
by H####:
by H####:
Responsive and accurate.
A
by A####:
by A####:
fantazzzzzz.....
T
by T####:
by T####:
good if you want do have some visual EVP`s, 44,000hz waves dont play on xperia`s, so needs mp3 encoding
C
by C####:
by C####:
But better spectral analyzers than this on play and with better UI,better functionality and far smaller memory size..sorry,not impressed so uninstalled.
C
by C####:
by C####:
On my nexus 5 it stretch as across the screen . poor quality. Will rate higher if it will be fixed
C
by C####:
by C####:
ASUS TF300 (ICS). In a quiet environment shows a sinus artifact across the entire display. I suspect it is a byproduct of running on this TF300. I look forward to further testing and enhancements. 4 stars for an ego-free product.
C
by C####:
by C####:
Even Indian schoolgirl can do better
A
by A####:
by A####:
i like the controls.
C
by C####:
by C####:
Great way to analyze speech
C
by C####:
by C####:
The images are often only partial when saved. File browser needs to remember last Dir or allow setting a default. Play and record are not responsive and saving a screenshot should not require you to stop recording. Currently it just silently fails.
F
by F####:
by F####:
I am loving the spectrogram out put, the detail is remarkable and i initially downloaded this app as an educational tool but will be buying the full version to use the mail-out spectrogram feature for everyday use, well made, great idea
I
by I####:
by I####:
Good spectrogram resolution and added flexability to email and save the recored audio and images. Going to buy full version now mainly for the zooming and spl meter.
C
by C####:
by C####:
read phone state and identity, read location. deleted.
C
by C####:
by C####:
Not a real app.
R
by R####:
by R####:
Great real time sonogram app Great way to analyze speech
R
by R####:
by R####:
deleted read phone state and identity, read location. deleted.
R
by R####:
by R####:
Great! i like the controls.
R
by R####:
by R####:
Ok But better spectral analyzers than this on play and with better UI,better functionality and far smaller memory size..sorry,not impressed so uninstalled.
R
by R####:
by R####:
Sinusoidal artifact? ASUS TF300 (ICS). In a quiet environment shows a sinus artifact across the entire display. I suspect it is a byproduct of running on this TF300. I look forward to further testing and enhancements. 4 stars for an ego-free product.
R
by R####:
by R####:
Good start but has issues The images are often only partial when saved. File browser needs to remember last Dir or allow setting a default. Play and record are not responsive and saving a screenshot should not require you to stop recording. Currently it just silently fails.
W
by W####:
by W####:
Impressive! I am loving the spectrogram out put, the detail is remarkable and i initially downloaded this app as an educational tool but will be buying the full version to use the mail-out spectrogram feature for everyday use, well made, great idea
O
by O####:
by O####:
Great audio analysis tool Good spectrogram resolution and added flexability to email and save the recored audio and images. Going to buy full version now mainly for the zooming and spl meter.
by K####:
On my nexus 5 it stretch as across the screen . poor quality. Will rate higher if it will be fixed