320kbps MP3 - Why is there a clear line near 16khz on spectrogram? - Sound Design Stack Exchange
5 Free Online Audio Spectrogram Generator
Is this indeed a transcoded WAV?
Sonic Visualiser
Audio Spectrogram Creator - make your own spectrogram | convert.ing-now.com
Sonic Visualiser
Is this Upsampled mp3, I checked on Lossless audio checker and it says upsampled, but Spectro says that the kbps is 727 it doesn't seem like a cut off of the spectrogram... :
Spectrogram View - Audacity Manual
This Handy Tool Checks The REAL Quality Of Your Music Files | News | Deep House Amsterdam
Wav to spectrogram online. Spectrogram app
sound - Is there a free realtime spectrograph available for Ubuntu? - Ask Ubuntu