Questions tagged [analysis]
The analysis tag has no usage guidance.
26
questions
4
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1
answer
77
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Specs of "common" sound level scale
There is a very common decibel-based sound level scale that I see casually tossed around all over the place with 0dB often described as "the threshold of human hearing" and typical non-...
2
votes
1
answer
28
views
How can I automate finding bass distortion in improperly processed files?
I have around 1000 "songs" - an 80s experimental noise duo - ripped to flac from cassette. A bunch (150, maybe?, but I don't know which ones) were processed with a hard limiting script ...
0
votes
0
answers
40
views
Audio sample analysis - Comparing two audio samples, the original sample with a reproduction capture sample
Introduction
I'm currently working on a project where I'm implementing a basic software phone, which connects two users.
Since I'm implementing both server service and the client applications, I'm ...
0
votes
3
answers
170
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Need help in filtering
I would like to ask for help please. I don’t have an experience in sounds or recording or filtering. I have a voice record of two speaking with lots of background noise due to an instrument that was ...
0
votes
0
answers
108
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Analysing long audio files
I have a 9 hour audio recording. I need to search through it for occasional short (5 second) low frequency bangs/explosion sounds. I have audition/audacity. What's the best way to do this, ...
1
vote
1
answer
65
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Dimensionality reduction for visualization purposes - "Sound map"
I'd like to know how recordings of many various sounds can be analyzed to allow for visualizations in two dimensions.
My idea would be to find two data features (e.g. using principal component ...
1
vote
1
answer
954
views
Pitch analysis in Audacity
For documenting and practicing music/ recitation styles, I wanted the kind of pitch analysis I see in this tweet: https://twitter.com/pattaprateek/status/1187095197911404545
How do I get something ...
1
vote
1
answer
220
views
What would cause a recording to have a completely symmetric frequency plot?
I'm developing software that receives PCM audio data and converts it to a WAVE file. The audio stream has the following characteristics:
16 bit signed integers
6000 frames sent every 1/8th seconds, ...
0
votes
1
answer
313
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Audio spectrum analysis: PC Software vs Hardware Spectrum Analyzer
I need to do some audio spectrum analysis (basically, listening to a machine and tell if it is properly calibrated).
I will record the sound it makes with a microphone (it sounds differently if it is ...
0
votes
3
answers
1k
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Which acoustic spectogram shows higher quality of audio file?
I have three acoustic spectograms of different copies of the same song:
MP3; 320 kbps; 9.20 MB
M4A (AAC); 256 kbps; 7.46 MB; Converted from 1. audio file via iTunes
M4A (AAC); 225 kbps; 6.87 MB
...
5
votes
4
answers
2k
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Options for unmixing sounds (source separation)?
Which solutions (standalone or plugins) exist for unmixing/de-mixing sources?
Lets say I have a track with acoustic guitar and string synth in mono, and I want each source separated. Which tools ...
1
vote
1
answer
1k
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MP3 Psychoacoustic Cut-off Frequencies for Low-Bitrate Presets
I've only seen frequency cut-off estimates for higher quality recordings. I'm interested in low bitrate frequency cutoffs:
24 kbps
32 kbps
40 kbps
48 kbps
56 kbps
64 kbps
80 kbps
96 kbps
I have a ...
1
vote
5
answers
3k
views
Waveform comparision, similarity detection software?
I am trying to find a software that can compare several waveforms together and extract the similarities between them.
Basically, I have a few pieces which have been generatively composed and I wish ...
1
vote
3
answers
150
views
Automating soundcheck: Can I get volume of an instrument from a live band audio GIVEN that I recorded the live mic input?
Let's say, during a live performance I save the mic input of every instrument and vocals. I also record the speaker output from the crowd.
Can I extract the volumes of the individual instruments ...
4
votes
1
answer
132
views
Is there a way to synthesize somebody saying "Aah" like in melbourne bounce?
I have recently been listening to a lot of Melbourne Bounce and I was wondering how the producers of that music make the human-voice-like leads.
So I fired up my DAW (Ableton) and started ...
2
votes
4
answers
5k
views
Which spectrogram shows higher quality of the song?
I have two spectrograms of different copies of the same song. I just wanted to know how to tell which one has a greater quality than the other. Could someone help me?
I think that the first one has ...
3
votes
1
answer
168
views
How can resynthesis engines be so accurate despite the time/frequency resolution trade-offs inherent in Fourier analysis?
I'm looking at Harmor specifically, but my question is about resynthesis in general. I assume that Fourier analysis is how these engines break a sound down into its constituent partials with frequency,...
1
vote
1
answer
6k
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How to find a specific sound in the audio track if i have a sample?
So i have this file which is all talking people and beep sounds. The beep sound is always the same and i need to mark every place where it plays. It would be great if it's possible to do with Audacity....
2
votes
2
answers
2k
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Converting audio recording to numeric values representing how loud the audio is at a given time
Warning: Complete audio beginner
Background:
I have audio recordings that were recorded through a mobile device using an app. I need to write a program that takes the audio and finds periods of ...
4
votes
1
answer
14k
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Are there any VST audio to MIDI plugins?
In Pure Data / MAX/MSP etc. there's are objects that can take in an audio signal and output a control signal with the frequency. (So you can whistle a tune into the mic and have a synth play it.)
Are ...
4
votes
3
answers
160
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Can you help deconstruct this SFX?
I'm struggling to figure out how to recreate a specific sound effect.
It's the prize bubble collection noise from the video game LittleBigPlanet 3. There are several varieties but a cohesive overall ...
0
votes
2
answers
257
views
Frequency modulation in frequency domain
How would I calculate the amplitudes, phases, and frequencies of the harmonic peaks resulting from frequency modulating (and/or phase modulating) a waveform stored in frequency domain representation?
...
0
votes
3
answers
1k
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How Do You Analyse A Film or Game For It's Sound Content?
I've heard and read about how recording/mixing engineers in the music business analyze each others mixes to learn the techniques used to make a certain track sound so good or what the latest trend/...
1
vote
3
answers
340
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Catfish - Can we tell from the sound if it's real or not?
I watched the excellent documentary, Catfish. The sound was done by Coll Anderson.
There's debate as to whether or not it is real. I wonder if we can tell from the sound if it is or not.
[spoiler ...
3
votes
2
answers
710
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Looking for good resources regarding film analysis
Hi everyone,
I'm currently doing a paper at university in film music, analysing the composition & sound design of various films. We've been assigned to groups & ours has decided to analyse ...
8
votes
8
answers
2k
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What are your favorite spectral tools?
What are your favorite software tools for spectral analysis/manipulation?
And what do you use them for?