Stack Overflow
Stack Overflow

Questions tagged [tempo]

Tempo is a tiny JSON rendering engine that enables you to craft data templates in pure HTML.

Why use Tempo?

  1. Clear separation of concerns: no HTML in your JavaScript files, and no JavaScript in your HTML
  2. It makes working with AJAX/JSON content a piece of cake
  3. Works in Safari, Chrome, FireFox, Opera, and Internet Explorer 6+.

For more info click here

67 questions
23
votes
6 answers

How to get BPM and tempo audio features in Python

I am involved in a project which requires me to extract song features like beats per minute (BPM), tempo, etc. However, I have not found a suitable Python library that can accurately detect these features. Does anyone have any advice? (In Matlab, I…
MaiTiano
  • 691
  • 4
  • 12
  • 21
14
votes
4 answers

C# Audio - How to time stretch (different tempo, same pitch)

I'm trying to make a winform app in C# (VS2008) that can load an mp3 (other formats would be nice, but mp3 at a minimum) and be able to adjust the playback speed (tempo) without affecting pitch. I really don't need any other audio effects. I tried…
heath
  • 1,047
  • 1
  • 14
  • 31
9
votes
2 answers

How to change pitch and tempo together, reliably with ffmpeg

I know how to change tempo with atempo, but the audio file becomes distorted a bit, and I can't find a reliable way to change pitch. (say, increase tempo and pitch together 140%) Sox has a speed option, but truncates the volume AND isn't as widely…
Ray C
  • 547
  • 2
  • 7
  • 24
5
votes
1 answer

Need Android equivalent of AudioInputStream

I'm trying to write an Android app that analyzes content from the user's music library. Let's assume that these are mp3 files on the SD drive, for starters. I'm able to find Java algorithms to analyze music files, but I can't find an API to read…
Malcolm McRoberts
  • 153
  • 2
  • 10
4
votes
1 answer

Splitting an Audio File Into Equal-Lenght Segments Using FFmpeg

I want to split an audio file into several equal-length segments using FFmpeg. I want to specify the general segment duration (no overlap), and I want FFmpeg to render as many segments as it takes to go over the whole audio file (in other words, the…
GPWR
  • 186
  • 3
  • 11
3
votes
2 answers

Using Sound files C# - modifying tempo

Does anyone have any idea how to modify the sound speed and play a sound file faster/slower than the original in C#? At the moment I am using .wav files, I have searched a lot and found that SoundPlayer and AudioVideoPlayback are the only two…
test
  • 2,538
  • 4
  • 35
  • 52
3
votes
1 answer

music beat detection in iphone

please anyone know is there any sample code for beat detection iPhone?.How to implement fft algorithm in iphone to detect music beats?.I see in one forum that apple's sample code auriotouch doing the beat detection, is it correct?. thanks
sentle
  • 31
  • 3
3
votes
2 answers

How to find the tempo of a .wav with aubio?

I'm looking to detect the tempo of an audio file in python 3.6, but I don't really understand the doc about aubio. Would someone please indicate how to extract the tempo with aubio or another library?
P G
  • 31
  • 1
  • 3
2
votes
3 answers

iOS How to receive MIDI tempo (BPM) from host using CoreMidi?

I want to know how I can receive MIDI tempo (bpm) from host running on my computer (it is simple Ableton Live or Logic Pro) using CoreMidi ? Does MIDI standards support this feature ? If yes, then please show me Objective C code example. I'm using…
user1195202
  • 1,423
  • 1
  • 16
  • 20
2
votes
2 answers

Transforming tree structure using Tempo

I have started on using JSON data structures instead of XML in a little Web project. I need to do some transformation of the data, like you normally do with XSLT on XML, and then I stumpled upon the cool library http://tempojs.com. But the real…
Mikkel Rasmussen
  • 21
  • 3
2
votes
2 answers

How can i make a metronome with jQuery

This doesn't have to be with a clicking sound. I need something to visualize a certain tempo/ metronome How can I make a sound or image appear on a certain tempo? So maybe with fade or toggle() but then with a tempo which you can adjust in an input…
Opoe
  • 1,337
  • 8
  • 30
  • 56
2
votes
1 answer

How do I refresh tempo js to display new data?

Been using Tempo.js for a while now and it's brilliant. I can't seem to work out how to clear the existing content and then display new content. I've used a function to send in the new parameter but it's not updating, I was hoping someone could…
Craig
  • 21
  • 2
2
votes
1 answer

Tempo and time signatures from MIDI

I'm currently building a software for displaying music notes from MIDI file. I can get every letter of tones from NoteOn and NoteOff events but I don`t know how I get or how calculate types of notes (whole, half, eigth..) and other time…
rbrisuda
  • 975
  • 9
  • 20
1
vote
4 answers

Time interval (in ms) from BPM (Midi tempo)

Does anybody know formula ? I tried following: 1000 / ((BPM * 24) / 60). But seems not correct.
user1195202
  • 1,423
  • 1
  • 16
  • 20
1
vote
2 answers

CoreAudio tempo change (iOS)

I'm very new to audio programming, but I know this must be possible. (This is an iOS/iPhone related question). How would I go about changing the tempo of a loaded audio file without changing the pitch, and then playing it back? I think I need to…
user1081465
  • 61
  • 1
  • 5
1
2 3 4 5