Resample Example does not work.

Hey,

thanks a lot for the nice library!

When trying to run the official resampling example - here, I'm getting some import errors.

Here the code:

// An example of using `sample` to efficiently perform decent quality sample rate conversion on a
// WAV file entirely on the stack.

use dasp::{interpolate::sinc::Sinc, ring_buffer, signal, Sample, Signal};
use hound::{WavReader, WavWriter};

fn main() {
    // Find and load the wav.
    let assets = find_folder::Search::ParentsThenKids(5, 5)
        .for_folder("assets")
        .unwrap();
    let reader = WavReader::open(assets.join("two_vowels.wav")).unwrap();

    // Get the wav spec and create a target with the new desired sample rate.
    let spec = reader.spec();
    let mut target = spec;
    target.sample_rate = 10_000;

    // Read the interleaved samples and convert them to a signal.
    let samples = reader
        .into_samples()
        .filter_map(Result::ok)
        .map(i16::to_sample::<f64>);
    let signal = signal::from_interleaved_samples_iter(samples);

    // Convert the signal's sample rate using `Sinc` interpolation.
    let ring_buffer = ring_buffer::Fixed::from([[0.0]; 100]);
    let sinc = Sinc::new(ring_buffer);
    let new_signal = signal.from_hz_to_hz(sinc, spec.sample_rate as f64, target.sample_rate as f64);

    // Write the result to a new file.
    let mut writer = WavWriter::create(assets.join("two_vowels_10k.wav"), target).unwrap();
    for frame in new_signal.until_exhausted() {
        writer.write_sample(frame[0].to_sample::<i16>()).unwrap();
    }
}

which gives:

error[E0433]: failed to resolve: could not find `interpolate` in `dasp`
 --> src/main.rs:4:12
  |
4 | use dasp::{interpolate::sinc::Sinc, ring_buffer, signal, Sample, Signal};
  |            ^^^^^^^^^^^ could not find `interpolate` in `dasp`

error[E0432]: unresolved imports `dasp::ring_buffer`, `dasp::signal`, `dasp::Signal`
 --> src/main.rs:4:37
  |
4 | use dasp::{interpolate::sinc::Sinc, ring_buffer, signal, Sample, Signal};
  |                                     ^^^^^^^^^^^  ^^^^^^          ^^^^^^ no `Signal` in the root
  |                                     |            |
  |                                     |            no `signal` in the root
  |                                     no `ring_buffer` in the root

error[E0433]: failed to resolve: use of undeclared crate or module `find_folder`
 --> src/main.rs:9:18
  |
9 |     let assets = find_folder::Search::ParentsThenKids(5, 5)
  |                  ^^^^^^^^^^^ use of undeclared crate or module `find_folder`

error[E0433]: failed to resolve: use of undeclared type `Sinc`
  --> src/main.rs:28:16
   |
28 |     let sinc = Sinc::new(ring_buffer);
   |                ^^^^ use of undeclared type `Sinc`

When run in main.rs.

Do you know how to successfully fix it?

RustAudio / dasp

Resample Example does not work. #158