Gomplerate

https://github.com/zeozeozeo/gomplerate

Admin

Gomplerate is a fast and simple pure Go audio resampling and sample rate conversion library with...

Tokens:1,544

Snippets:7

Trust Score:9.2

License:Unlicense

Update:4 days ago

Show doc for...

Tokens:

Raw

### Resample audio with 2 channels from 11kHz to 44.1kHz

Source: https://github.com/zeozeozeo/gomplerate/blob/main/README.md

Demonstrates initializing a new resampler and processing float64 audio data. Requires at least 16 samples per channel for effective resampling.

```go
package main

import (
	"fmt"

	"github.com/zeozeozeo/gomplerate"
)

func main() {
	// create a new resampler, the first number is the amount of channels, the second
	// number is the original audio sample rate, the second audio is the target sample rate
	r, err := gomplerate.NewResampler(2, 11000, 44100)
	if err != nil {
		panic(err)
	}

	// you should have at least 16 samples (per channel) to actually resample anything
	// instead of this, you can load any kind of audio, remember to use ResampleFloat64
	// for float64 audio and ResampleInt16 for int16 audio (ResampleInt16 will convert
	// the audio to float64, resample it and convert back to int16)
	data := []float64{
		// each second value is repeated here, because that's the second audio channel
		0, 0, .5, .5, 1, 1, .9, .9, .8, .8, .7, .7, .6, .6, .5, .5,
		.4, .4, .3, .3, .2, .2, .25, .25, .3, .3, .35, .35, .4, .4,
		.45, .45, .5, .5, .55, .55, .6, .6, .65, .65, .7, .7, .75,
		.75, .8, .8, .85, .85, .9, .9, .95, .95, 1, 1, 1, 1, 1, 0, 0,
	}

	resampled := r.ResampleFloat64(data)
	fmt.Println(resampled) // will print out a lot of resampled floats
}
```

Tokens:

Raw