https://github.com/guonaihong/go-soxr
Go bindings for the libsoxr audio down and up sample library (go包装的soxr音频升降采样库)
https://github.com/guonaihong/go-soxr
Last synced: about 2 months ago
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Go bindings for the libsoxr audio down and up sample library (go包装的soxr音频升降采样库)
- Host: GitHub
- URL: https://github.com/guonaihong/go-soxr
- Owner: guonaihong
- License: apache-2.0
- Created: 2018-07-29T10:56:49.000Z (almost 7 years ago)
- Default Branch: master
- Last Pushed: 2018-08-16T14:24:41.000Z (almost 7 years ago)
- Last Synced: 2025-01-30T21:54:55.653Z (4 months ago)
- Language: Go
- Homepage:
- Size: 11.7 KB
- Stars: 4
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# go-soxr
Go bindings for the libsoxr audio down and up sample library (go包装的soxr音频升降采样库)
#### Usage:
Create an SoxR instance
```go
var spec soxr.IoSpec
//输入采样点精度
//Input sampling point width
spec.Itype = soxr.SOXR_INT16_I
//输出采样点精度
//Output sampling point width
spec.Otype = soxr.SOXR_INT16_I
spec.Scale = 1
//Create an SoxR instance
s, err := soxr.Create(float64(*inSample), float64(*outSample), 1, spec)
```
For processing functions, n is the number of bytes exported, and err is an error.
```go
n, err = s.Process(inBuf[:n], outBuf)
if err != nil {
fmt.Printf("soxr process fail:%s\n", err)
}
```
Destroy the SoxR instance
```go
defer s.Close()
```
#### examples:
```
env GOPATH=`pwd` go build github.com/guonaihong/go-soxr/examples/resample
```
Audio downsampling
```
./resample -in 21.16k.pcm -in_sample 16000 -out out_pcm_file_8k -out_sample 8000
```
Audio upsampling
```
./resample -in 21.8k.pcm -in_sample 8000 -out out_pcm_file_16k -out_sample 16000
```
This raw audio file may be played using ffplay:
```bash
ffplay -f s16le -ar 16000 ./out_pcm_file_16k
ffplay -f s16le -ar 8000 ./out_pcm_file_8k
```