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| author | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2023-12-19 02:38:48 +0300 |
|---|---|---|
| committer | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2023-12-19 19:38:32 +0300 |
| commit | e983ee7b0760210fdc220364d6c78c92ed8d8479 (patch) | |
| tree | 66c36f487ed701a31649193e1c58d454591bf6e0 /examples/fft.lua | |
| parent | 0320d0b02530fb33eb15508bc3620221f814b11f (diff) | |
| download | applause2-e983ee7b0760210fdc220364d6c78c92ed8d8479.tar.gz | |
added a free sample to be used with the FFT examples
* license of the project is GPLv3 now
Diffstat (limited to 'examples/fft.lua')
| -rw-r--r-- | examples/fft.lua | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/examples/fft.lua b/examples/fft.lua index 417f3c6..5930f46 100644 --- a/examples/fft.lua +++ b/examples/fft.lua @@ -15,8 +15,8 @@ tostream(phase(FFT(Stream.SinOsc(samplerate*20/1024, 0.7):sub(1, 1024)))):gnuplo -- Naive pitch shifting -- This is not easy to get right. See https://www.reddit.com/r/DSP/comments/k6t24c/pitch_shifting_algorithm_in_frequency_domain/ -robin = SndfileStream("tracks/robin-mono.wav"):sub(sec(10.284), sec(17.466)):eval() -robin:FFT(1024):map(function(spectrum) +haiku = SndfileStream("examples/haiku.flac") +haiku:FFT(1024):map(function(spectrum) assert(#spectrum == 513) -- NOTE: We cannot use Stream:resample() as it won't work with complex samples. for i = 1, 512/2 do spectrum[i] = spectrum[i*2] end |