1
$\begingroup$

I'm trying to make a neural network that detects certain instruments in a song. I don't know for sure if I should use an RNN, CNN OR DNN. Which one is best for this situation?

$\endgroup$
  • 2
    $\begingroup$ I suggest you insert your question in the question body instead of the title and provide some more details $\endgroup$ – DuttaA May 3 '18 at 12:26
  • $\begingroup$ Without knowing anything about this problem, the question that pops into my mind is "are you looking at patterns to determine the number of instruments in a recording, such as a popular song or symphony?" $\endgroup$ – DukeZhou May 3 '18 at 18:44
2
$\begingroup$

I don't know for sure if I should use an RNN, CNN OR DNN. Which one is best for this situation?

This question or variations of of crop up a lot in DataScience stack exchange too. To paraphrase:

I am trying to do something with X data, and I have a lot of choices for the model. Which is best?

Unfortunately, the answer is generally:

  • It depends on all the fine details of your project

  • Unless someone has done almost your exact project recently (so they were using latest techniques of the model type), then no-one knows a priori which model will get the best result.

  • Optimising machine learning is very much an empirical subject. If you want to know whether A is better than B, you have to try both and measure their performance.

In your case, I think that CNNs and RNNs are both applicable (and you might want to look at a WaveNet-like architecture, which is a variant of CNN, but that could be a bit too advanced to start with). You might have a slight preference for RNN as a starting point if the sequence length to process varies significantly, such that padding input to a CNN would be inefficient. You may also prefer an RNN if the output of your model needs to be a sequence, and doubly so if the output sequence varies in length and is not directly related to the input sequence length (think of natural language translation).

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.