commit ad98211cb9c854e2a89fc90ff111ff0807aefc49
Author: Brandon Thomas <echelon@gmail.com>
Date:   Fri Sep 6 01:22:57 2019 -0400

    starting experiments

diff --git a/.gitignore b/.gitignore
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index 0000000000..bcc52fede8
--- /dev/null
+++ b/.gitignore
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diff --git a/Cargo.lock b/Cargo.lock
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000000..cafd71b248
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,21 @@
+[package]
+name = "voder"
+version = "0.0.0"
+authors = [ "Brandon Thomas <bt@brand.io>",
+            "Brandon Thomas <echelon@gmail.com>" ]
+
+[[bin]]
+name = "voder"
+
+[dependencies]
+cpal = "0.10.0" # hardware audio out
+hound = "3.4.0" # wav encoder/decoder
+sample = "0.10.0" # DSP toolkit
+sonogram = "0.3.0" # badass spectrograms
+wavy = "0.1.2" # real time audio capture and playback
+
+#chrono
+#clap
+#log
+#time
+#toml
diff --git a/README.md b/README.md
new file mode 100644
index 0000000000..34a4514a23
--- /dev/null
+++ b/README.md
@@ -0,0 +1,59 @@
+Voder
+=====
+
+Voice things.
+
+Crates to try:
+
+- [hound](https://crates.io/crates/hound)
+  - Encoder/decoder
+  - Very mature (3.4.0)
+
+- [cpal](https://crates.io/crates/cpal)
+  - Hardware audio out, low level
+  - Tons of downloads!
+
+- [wavy](https://crates.io/crates/wavy)
+  - Microphone in, speaker out
+  - ALSA
+
+- [sample](https://crates.io/crates/sample)
+  - convert between floats, u8s, u16s, etc. via a trait
+  - clip amplitude
+  - scale playback
+  - iterators
+  - signal generators (sine, saw, noise, etc.)
+
+- [sonogram](https://crates.io/crates/sonogram)
+  - generate spectrograms! 
+  - THEY LOOK SICK!
+
+- [audrey](https://crates.io/crates/audrey)
+  - supports range of audio encoders/decoders
+  - flac, ogg, wav, alac
+
+- [waveform](https://crates.io/crates/waveform)
+  - generate images from wave files
+  - con "it is probably threadsafe"
+
+- [samplerate](https://crates.io/crates/samplerate)
+  - sample rate conversion
+
+- [riff-wave](https://crates.io/crates/riff-wave)
+  - read and write wav files
+  - con: old (2016)
+
+- [wavefile](https://crates.io/crates/wavefile)
+  - con: old (2016)
+  - con: low on doc
+
+- [pitch](https://crates.io/crates/pitch)
+  - determine pitch and volume of samples
+  - uses "bistream autocorrelation function (bcf)"
+  - todo: also investigate BACF, uses peaks instead of zero-crossings
+
+- [libwave](https://crates.io/crates/libwave)
+  - wav library, based on nom zero-copy parser
+  - PCM support
+  - 18/16/32/64 bit support
+
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000000..555babf921
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,40 @@
+
+extern crate cpal;
+extern crate hound;
+extern crate sample;
+extern crate sonogram;
+extern crate wavy;
+
+use wavy::*;
+
+use std::collections::VecDeque;
+
+fn main() {
+  println!("Run");
+  record().unwrap();
+}
+
+fn record() -> Result<(), AudioError> {
+  // Connect to the speaker and microphone systems.
+  let mut mic = MicrophoneSystem::new(SampleRate::Normal)?;
+  let mut speaker = SpeakerSystem::new(SampleRate::Normal)?;
+
+  let mut buffer = VecDeque::new();
+
+  loop {
+    // Record some sound.
+    mic.record(&mut |_whichmic, l, r| {
+      buffer.push_back((l, r));
+    });
+
+    // Play that sound.
+    speaker.play(&mut || {
+      if let Some((lsample, rsample)) = buffer.pop_front() {
+        AudioSample::stereo(lsample, rsample)
+      } else {
+        // Play silence if not enough has been recorded yet.
+        AudioSample::stereo(0, 0)
+      }
+    });
+  }
+}