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5 votes
Accepted

How to restore a high pitch voice recorded from a tape cassette?

So what you're attempting to do, is restore the pitch (i.e. "speed") of the recording. The reason it didn't work is that you used a timestretching algorithm instead, which leads to an ...
n00dles's user avatar
  • 2,619
5 votes

Why can I hear 120 BPM, but not 2 Hz?

I think you've misunderstood what Frequency is, with respect to audio. Whilst 'Frequency' typically is 'how frequently something occurs', in audio it's how many times a sine-wave oscillates in a ...
Skarik's user avatar
  • 1,336
3 votes

Smallest pitch difference audible

The smallest interval a human can hear depends somewhat on the register and timbre of the tone (and it varies from person to person), but generally speaking the smallest detectable difference is ...
Ethan Starr's user avatar
3 votes

Smallest pitch difference audible

It's going to be difficult to come up with an absolute number, because it will vary greatly between individuals. I suspect it will also vary with age, exposure to music, and any number of other ...
endorph's user avatar
  • 131
3 votes

What software can I use in order to extract this pattern from music?

As you mention that you have experience in programming, the Essentia library might fit your need. Essentia is an open-source C++ library for audio analysis and audio-based music information ...
audionuma's user avatar
  • 2,844
2 votes

What software can I use in order to extract this pattern from music?

Processing has good sound libraries such as Minim and apparently a new factory library check this link.
JSmith's user avatar
  • 1,103
2 votes

Reasamplomatic5000 Change Pitch Without Changing Tempo

Firstly it's nice to see someone making use of RS5000! Sadly, though, it works in the same way as most samplers in that it achieves the pitch changes simply by playing back the sample data at ...
EmptyVessel's user avatar
2 votes

Is there any free tool to generate a tone with gradually increasing pitch?

The sox utility can do this. To generate a WAV file: sox -n output.wav synth 600 sine 20-16k Mind you, this will generate a 100 MB WAV file, since it defaults to a 48 kHz sampling rate. Since you ...
Nathaniel M. Beaver's user avatar
2 votes
Accepted

How to tell if an audio track follows A440 standard?

There is no 100% certain way to determine which equal-tempered scale standard was used as tuning basis for a song. However the vast majority is A440. Many electronic instruments don't really give you ...
Michael Hansen Buur's user avatar
2 votes

Melodyne Essential mistakenly interpreted two notes as one. Can I correct this?

There‘s a tab where you can set the algorithm. Usually setting it to „melody“ should fix this.
Elias Johannes's user avatar
2 votes
Accepted

Pitch shift vocals without sounding sqeaky (Logic Pro X)

In the most basic form of pitch-shifting, we play a sample faster or slower. This has some side effects along with the desired pitch shifting - the duration and the formant of the sound are also ...
Schizomorph's user avatar
  • 1,573
2 votes
Accepted

Change Audacity playback speed without affecting pitch

Audacity is rather simplistic in approach. It doesn't seem to have the subtlety required to do this in real-time. It has an option - Effect > Change Tempo… See the manual pages at - Change Tempo
Tetsujin's user avatar
  • 8,701
1 vote

Pitch analysis in Audacity

Take a look at Praat which has spectral and pitch analysis built in. Here is a video explaining how this is done.
Mark's user avatar
  • 8,900
1 vote

Pitch shift select frequencies

Like said in the comments, the fist thing to do is to separate the frequencies we want to affect from the rest. This can be done using LPF/HPF combo to form a BPF (I find it easier to set my cutoff ...
Schizomorph's user avatar
  • 1,573
1 vote
Accepted

How can I create this rising pitch?

There are a lot of questions here: Is this just a single note with a pitch modulation e.g. with an lfo? Looks like an arpeggiator with different notes. How would the curve look like? If you ...
JSmith's user avatar
  • 1,103
1 vote

Why can I hear 120 BPM, but not 2 Hz?

It's simple really; Your speakers can't reproduce a 1Hz sinewave, and if it could, you wouldn't hear it due to the limits of human hearing(plus, due to the size of the speaker cone, it would have very ...
n00dles's user avatar
  • 2,619

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