Spec - Acoustic Spectrum Analyser

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Spec - Acoustic Spectrum Analyser

Post  Admin on Sun Feb 08, 2015 11:04 pm

Nifty little program, good for spotting these idiots who like to transcode low quality mp3 to FLAC
FLAC especially 16/44.1 which is of CD Quality is 22.1khz

A lot of mp3 transcoded (providing the track actually reaches 22.1 in it's WAV form before being ripped originally to mp3) will show low results, especially anything under 320 CBR, most 320 will not be above 20.5khz where a V0 VBR can hit 22.1khz. 

So picking a high V0 maybe a little tricky, but picking a pathectic 128, 192 will be easy to spot as a line won't reach anywhere near 20khz.. 

Example of a 128 ~~ Transcoding this file back to a WAV or even a FLAC (FLAC and WAV are both Lossless where mp3 is Lossy) won't bring a miracle in sound quality at all, what you get is a oversized file with the sound quality of the original 128

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Info..

Supports all popular lossy and lossless audio file formats thanks to the FFmpeg libraries.
Ultra-fast signal processing, uses multiple threads to further speed up the analysis.
Shows the codec name and the audio signal parameters.
Allows to save the spectrogram as an image file.
Drag-and-drop support; associates with common audio file formats.
Auto-fitting time, frequency and spectral density rulers.
Adjustable spectral density range.
Translated into 19 languages. 

where and Free

Code:
http://spek.cc/
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