Questions tagged [sound]
Questions relating to Mathematica's sound and audio functionality, including Play, Sound, Audio and Speak.
39
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5
answers
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Is it possible to use Mathematica to record sound and/or vision?
I think the title says it all. I know about ImageCapture which seems to capture stills.
Can ImageCapture be made to capture a ...
- 37.3k
7
votes
2
answers
3k
views
Frequencies represented in a DFT list (Fourier[])
I have a sound sample (sample rate: 44100).
When I have a list l with n successive elements from the sample, ...
- 19.9k
8
votes
4
answers
1k
views
Using Manipulate to vary the frequency of a sound produced by SoundNote[]
I have tried various ways to combine Manipulate and Sound/SoundNote that would allow me to vary the frequency of a sound while it is being produced. The addition of Dynamic didn't help, but did ...
- 5,422
39
votes
1
answer
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May the Fourth be with you
Happy Star Wars day. I was playing around with the image manipulation functions in Mathematica in an attempt to recreate the Star Wars crawl. There's an HTML/CSS implementation which is in my ...
- 19.6k
23
votes
3
answers
8k
views
Can one find the beat of a tune with Fourier analysis?
I'm trying to find out if it's possible to find the beat of a tune by Fourier analysis with Mathematica. I'm taking a 44.1 kHz sample sound and hoping that I might get a nice peak for a frequency ...
- 10.7k
12
votes
3
answers
1k
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Realtime audio processing using Dynamic
Can I make real time audio processing with Mathematica in the same way I can do with images using Dynamic[CurrentImage[]].
I know that is possible to use ...
- 26k
4
votes
1
answer
1k
views
How to manipulate spoken text with Speak?
I need to vary the speed, pause, reverse and in general control aspects of the playback of Speak[] is this possible?
- 31k
31
votes
3
answers
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How do you remove noise to detect just the human voice?
How do you detect different sound frequencies and cut off parts in an audio file? Among instruments, how do you pick up the human voice?
- 437
16
votes
1
answer
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Manipulating a continuous stream of sounds
I need some audio-feedback when a locator is moved on a surface. I have the following code that produces a beep every time the dynamic controller is interacted with such that the pitch of the sound ...
- 46.5k
14
votes
3
answers
4k
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How to approximate a given WAV file with trigonometric series?
I'd like (together with a few people) to prepare a presentation about Fourier series for middle/high school students. I thought it might be quite cool to play a violin sound from, say, a WAV file, ...
- 949
11
votes
2
answers
1k
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How to export Speak output?
I made a series of interval workouts based on Speak[], where the voice tells me when the intervals start, when they stop and how much time I have left to prepare. ...
- 2,469
11
votes
1
answer
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How to extract sample values from an imported WAV file?
Suppose I read a file with
B = Import["something.wav"]
Now how can I obtain a list of sample values?
- 2,023
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4
answers
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How do I change the way Mathematica pronounces English words (e.g. "futile" is not pronounced correctly)?
I am absolutely desperate. I cannot get my Borg to pronounce "futile" correctly.
Speak["Resistance is futile."]
Leo pronounces "futile" as expected and there is ...
- 2,045
9
votes
1
answer
1k
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How to Speak in a foreign language?
A previous question changed the pronunciation by changing the spelling of words or by externally changing the default system voice. This is useful for speaking in foreign languages too, but I don't ...
- 3,783
6
votes
4
answers
702
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Why can I still hear sound when the frequency of the periodic function inside Play is higher than the range of human ear?
We know that usually sound that is perceptible by humans has frequencies from about 20 Hz to 20,000 Hz, but as the title said, I can still hear the sound of the outputs of the following code:
...
- 62.9k
6
votes
1
answer
292
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Mathematica 10 Audio Export Issue
Summary of the problem:
When exporting data as an audio file (AIFF/WAV etc.), there appears to be unwanted scaling and offset in the data such that the minimum and maximum values are forced to be -1 ...
- 135
3
votes
2
answers
303
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Clickable clock making sound
I have a moving clock
Dynamic[Refresh[ClockGauge[], UpdateInterval -> 1]]
which should be clickable.
Program should make a sound when hand of a clock will ...
- 97
2
votes
1
answer
317
views
Export an animation as .avi file with sound?
If I have a list myTb containing Image objects, I can export the list as an .avi file using the command
...
- 11.9k
2
votes
1
answer
859
views
Demonstrate aliasing effect in sound
I'm trying to demonstrate the aliasing effect using sound, that is, when the sample rate is fixed and the sound frequency is increased, we would hear the sound pitch go down when we pass the Nyquist ...
- 27.4k
20
votes
4
answers
2k
views
Random data generator
Inspired by Quality of random numbers I would like to set up a true random data generator in Mathematica.
My idea is to use the static from an open microphone. I recall reading about extracting the "...
- 269k
11
votes
2
answers
2k
views
Creating a realtime MIDI Out
I have a live stream of notes and note velocities using SoundNote and SoundVolume. My problem is that I have no idea how to ...
- 163
11
votes
1
answer
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Multiple instrument chord
I would like to create a chord using multiple instruments. This started as an attempt to explain music to a friend but my curiosity has taken over. I am familiar with the SoundNote function.
I know ...
- 327
8
votes
3
answers
3k
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Notification sound when simulation done? [duplicate]
Possible Duplicate:
Customize front end to add notifications when evaluation finishes?
How to setup sound alert notification when simulation is complete?
I need to do something else while ...
- 1,953
7
votes
1
answer
446
views
How to plot Spectrogram of SoundNote?
I try to use the expression:
Spectrogram[Sound[SoundNote[{"C", "E", "G", "C5"}, 10, "Vibraphone"]]]
to plot the spectrogram of a SoundNote. But Spectrogram ...
- 71
7
votes
2
answers
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How to get the frequency information of an mp3 audio?
I have:
music = Import["http://www.qlcoder.com/uploads/145425353234642.mp3", "mp3"]
Then I get:
But what I want to get is ...
- 859
7
votes
2
answers
382
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Resources for Sound Synthesis & Design
Are there any resources for sound synthesis using Mathematica?
This page, Mathematica: Audio Synthesis Software, refers to other software packages, e.g. Max/MSP and Csound, for real-time synthesis.
...
- 30.6k
7
votes
2
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514
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Why can I still hear sound when the frequency of the periodic function inside Play is lower than the range of human ear?
This question is originally part of this question, but this issue seems to be different from the former one, so I think it's better to start another question for it.
Usually, human can't hear sound ...
- 62.9k
6
votes
2
answers
624
views
How to loop a sound
I have created a sound which I would like to play continuously until stopped, by looping back to the beginning. The sound is represented as list of samples, which can be played by
...
- 1,889
6
votes
1
answer
750
views
Getting MIDI SoundNote Pitches as Numeric Values
I'm trying to do some evaluation on notes (specifically the pitches) imported from a MIDI file. I've imported a list containing tracks of sound notes with ...
- 241
5
votes
1
answer
197
views
Identifying Silence in Audio
I have some audios that contain short spaces of silence with different periods of time.
Looking for information, I found this question.
The audio example is this.
Is there a way the program can do ...
- 9,145
5
votes
1
answer
637
views
How can I regulate 'Play sound duration' in Mathematica 8
How can I regulate the time of play sound[s] - duration in Mathematica 8. I want to import and save wav file in *.nb document & manipulate (with) the sound duration, for example, select sound ...
- 51
3
votes
2
answers
826
views
How to add echo to audio file?
After importing a sound file, how can I add an echo to it?
sound = Import["test.wav", "SampleRate"]
It needs to be apply after time specified by user. This is ...
- 197
3
votes
1
answer
2k
views
How to find the local maximum of a list [duplicate]
I have imported a wav sound that
a = Import["sound.wav"]
and we know that
soundStrength = a[[1]][[1]] is a list of sound ...
- 31
2
votes
1
answer
1k
views
Finding peaks on a Periodogram
I am currently working on a school project involving modelling sound recordings of piano notes. I have used the periodogram function to graph my recording and would like to find the peaks of this ...
- 23
2
votes
3
answers
1k
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How can I convert a Sound created with SoundNote to a list of samples?
I have a Sound created with SoundNote, as follows:
simpleSound = Sound[SoundNote["C"]]
...
- 121
1
vote
1
answer
4k
views
How to define a periodic function from an interval to Play (monotonic) sound [duplicate]
I would like to define a function on an interval and then duplicate it on other intervals of the same length in order to define a (generally discontinuous) periodic function, from which I could get a (...
- 115
1
vote
1
answer
444
views
Strange behavior: Cannot import data as MP3 format anymore
I am having the strangest problem since a day: Mathematica is no longer (after a reinstall) able to import MP3 files.
I think these details should not be relevant, but they are all there are:
It ...
- 113
1
vote
1
answer
243
views
How to use AudioTrim to delete the silences?
I have an audio file named del_silences.wav.
I want to delete the silence intervals.
But using AudioTrim, the audio almost has no change:
...
- 6,766
0
votes
1
answer
244
views
Remove sound emitted after evaluation
After the evaluation of a cell Mathematica emits a sounds: how can I remove it?
If needed, I use v.10 on a Windows 8.1 64 bits machine.
- 6,525