ADSR Audio Envelope: How to get it?

11 次查看（过去 30 天）
Nycholas Maia
Nycholas Maia 2017-2-15
评论： Walter Roberson 2024-8-9
How can I get the ADSR sample points of a audio file...Like:
"Fake" example:
[Amp, SR] = audioread(audio.file);
[a d s r] = get_ADSR(Amp);
% Results: The sample position of the Amp vector:
a = 85 % End of Attack -> Attack start = Amp(0)
d = 300 % End of Decay
s = 2456 % End of Sustain
r = 50000 % End of Release
  1 个评论
Walter Roberson
Walter Roberson 2024-8-9

For questions about GNU Octave, ask in a GNU Octave support resource.

The purpose of Octave is to put Mathworks out of business, so we decline to support it here.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Matthew Novick
Matthew Novick 2017-11-7
Could you please clarify your question? Is 'audio.file' a generic waveform, and you want a function that will automatically characterize the parameters of an ADSR envelope, similar to that in the Wikipedia link below? https://en.wikipedia.org/wiki/Synthesizer#Attack_Decay_Sustain_Release_.28ADSR.29_envelope
  1 个评论
Nycholas Maia
Nycholas Maia 2017-11-9
Yes! I would like to get the ADSR parameters from a generic waveform. The Wikipedia article is correct.
Example: https://en.wikipedia.org/wiki/Synthesizer#/media/File:ADSR_parameter.svg
Is it possible?

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Audio I/O and Waveform Generation 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by