how is it interpreted?

[Jimbob54]

If you use chrome for YouTube , this extension might be more what you're looking for . Real time spectro so you can see what you are hearing .

YouTube Musical Spectrum - Chrome Web Store

Audio visualizer for YouTube and YT Music with musical notes.

chromewebstore.google.com

 

[DVDdoug]

A spectrum (spectrum analyzer) might be more useful and easier to understand than a spectrogram. It's only two dimensions (amplitude & frequency) without the time dimension.

Audacity has Analyze Spectrum (as well as an optional spectrogram view). It shows a static spectrum of the song or for a selected part of the song.

Or Soundcard Oscilloscope can be set to Frequency (which is a spectrum analyzer). And it can be configured to show the output from your soundcard as it's playing.

 

[LTig]

I want to understand in all the songs which are the frequencies that have more energy?
this song is just an example

Use soundspec, more info here.

 

[dualazmak]

What can we understand using these spectrograms?

I use similar 3D spectrum in Fq-scale of 15 Hz to 22 kHz measured by Adobe Audition 3.0.1 and/or MusicScope 2.1.0 using well-QCed white noise for Fq FFT spectrum analysis, i.e. "Cumulative (Recorded) White Noise Averaging FFT Method".
Please refer to my posts:
- Frequency response measurements by "cumulative white noise averaging": #392, #404, especially the end portion of #297(remote thread) by Dr. Floyd Toole, #315(remote thread) by Dr. Floyd Toole, #125(remote thread)

- Frequency (Fq) responses in the completed system measured by using “cumulative white noise averaging method” under the present standard crossover configurations and relative gains_Part-6_Summary, discussions, and a little step forward: #404, #405-#409

- Smoothing or not, how much smoothing, in FFT Fq-SPL analysis: #19 (remote thread)


Furthermore, these color spectrums represent 3D sound energy distribution in frequency-time-gain space, and therefore they are be very much useful in determination/selection of crossover Fq/slope/phase etc., for example between sub-woofers and woofers; you can find a typical application case on my project thread as follows;
- Measurement of transient characteristics of Yamaha 30 cm woofer JA-3058 in sealed cabinet and Yamaha active sub-woofer YST-SW1000: #495, #503, #507


The 3D color spectrums are also powerful tool in "visual observation" of the difference in DSD tracks vs. PCM tracks as you can find typical example cases in my posts here, here and here.


I also use this type of 3D Fq FFT spectrum for "visually observing" the Fq distribution of all tracks of the "Audio Reference/Sampler Music Playlist" consists of 60 music tracks; please visit my thread "An Attempt Sharing Reference Quality Music Playlist: at least a portion and/or whole track being analyzed by 3D color spectrum of Adobe Audition" and each of the linked posts thereof to the Reference Music Tracks.

 

[dualazmak]

the spectrogram is from this video

I quickly extracted the audio track of this video into 48 kHz 24 bit PCM (.aif format) and analyzed by MusicScope 2.1.0 and ADOBE Audition 3.0.1.

Unfortunately, at least in this video clip, the soundtrack is much gain-saturated by the 40 Hz - 50 Hz low Fq sound, and hence some amount of distortion should be there in 40 Hz - 50 Hz zone.

I selected the whole track for FFT Fq-SPL spectrum analysis;

 

[LTig]

the spectrogram is from this video

With soundspec -b -a:

 

[musica]

I'm interested in knowing the frequency of a certain sound in a song, what should I use?

 

[antcollinet]

I'm interested in knowing the frequency of a certain sound in a song, what should I use?

That is tricky - because that sound will be together with all the other sounds.

There is no easy way to isolate the particular sound you are interested in from all the other sounds playing at the same time. You will also find that any particular sound consists of multiple frequencies - the fundamental frequency - plus all the harmonics that create the timbre of the particular sound.

 

[Jimbob54]

I'm interested in knowing the frequency of a certain sound in a song, what should I use?

See Ant's comment above this - but if just one song and sound, link the song file, the time during the song and describe the sound you are interested in. I'm sure we can find it roughly- especially if you describe the instrument you think it is.

By the way- that should have been your first post. And the answer is probably watching a spectrum analyser program whilst playing the song. https://www.audiosciencereview.com/forum/index.php?threads/how-is-it-interpreted.57529/post-2103713

 

[dualazmak]

I'm interested in knowing the frequency of a certain sound in a song, what should I use?

You would please visit these two posts;
- Excellent Recording Quality Music Albums/Tracks for Subjective (and Possibly Objective) Test/Check/Tuning of Multichannel Multi-Driver Multi-Way Multi-Amplifier Time-Aligned Active Stereo Audio System and Room Acoustics; at least a Portion and/or One Track being Analyzed by Color Spectrum of Adobe Audition in Common Parameters:
[Part-06] Female Vocal in Jazz and Popular Music, and One Male Vocal Track for Comparison: #596
[Part-07] Female Vocal and Counter Tenor in Early Classical Music: #639

In these female vocal music tracks, it is rather easy to identify the keynote tone Fq and the harmonics tone(s) Fq of female vocal by playing/listening the tracks on 3D color spectrum charts where the vertical cursor moves along with the playback progress.

You need to understand, however, female vocal (as well as other vocal and instrument sounds) consists of keynote tone and many higher-Fq harmonics tones as you can easily observe on the 3D spectrum charts in post #639 for a cappella and solo female vocal sound.

You may further clearly understand what I am describing/explaining here by visiting these posts;
[Part-11] Violin Music: #643
[Part-12] Cello Music: #644

After you would well understand and get used to looking/tracing/listening these 3D color spectrum (I recommend to use ADOBE Audition), it will be possible for you to identify the piano tones (keynote tone plus possibly some harmonic tones) even within piano concertos accompanied by full-orchestra as shared in my post;
[Part-14] Piano Concertos: #650

 

[dualazmak]

Furthermore, after you would get used to the advanced features of ADOBE Audition (I use ver.3.0.1), you can use "rectangular zone selection" and "reverse zone selection" thereof to much-gain-down (or even delete) the other portions leaving/keeping your interested 3D "area" to confirm your identification of specific Fq portion, i.e. female vocal sound portion(s) in your case.

You can find example cases of such "3D zone selection" and "gain change" on 3D sound color spectrum in my post;
[Part-17] Excellent Quality Music Tracks, But Containing Unacceptably High Gain Low Frequency Air Conditioning Noises; What Counter Measures Can We Have? #658

 

[krabapple]

I'm interested in knowing the frequency of a certain sound in a song, what should I use?

At the moment you are interested in where the 'certain sound' occcurs (you find it on the time axis at the bottom), you scan vertically and look where the brightest parts of the spectrum are -- their frequencies are shown on the left axis. Those are the fundamentals of the sound at that moment. Your 'certain sound' is one of those, or maybe the combination of all of them. You haven't said whether you are hearing just one instrument, or one note, or a chord, or what?

There is a tool in Adobe Audiition that tells you the same thing, when you select a spot on the spectrgram.

Audacity also has a pitch detection plug-in, which lets you simply select part of a waveform, and it tries to determine the main pitch. This works well with an isolated instrumental track.

 

[musica]

I am interested in knowing the frequency of an instrument and of a special effect of any piece of music, what is the easiest way to do this?

 

[Jimbob54]

I am interested in knowing the frequency of an instrument and of a special effect of any piece of music, what is the easiest way to do this?

This has been answered multiple times by multiple people on this thread .

 

[tmtomh]

the spectrogram is from this video

This information should have been in your first post, not your 4th post.

 

[krabapple]

I am interested in knowing the frequency of an instrument and of a special effect of any piece of music, what is the easiest way to do this?

Asked and answered. You should go away now and ponder the answers you were given.