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# yask
> Tools for work with the synthesis and speech recognition service Yandex Speech Kit (more about in https://cloud.yandex.ru/docs/speechkit/) for golang programming language. Used to synthesize speech from text and recognize text from a sound stream.
Before start to use, you must register at https://cloud.yandex.ru/ to get the API key and directory identifier (more about https://cloud.yandex.ru/docs).
### Audio stream formats
### Speech synthesis from text
> As a result of the example, get a file in wav format, ready for playback in any player program. The default bitrate is 8000.
```golang
import (
"log"
"os"
"github.com/fcg-xvii/go-tools/speech/yask"
)
func main() {
yaFolderID := "b1g..." // yandex folder id
yaAPIKey := "AQVNy..." // yandex api yandex
text := "Hi It's test of speech synthesis" // text for synthesis
// init config for synthesis (по умоланию установлен формат lpcm)
config := yask.TTSDefaultConfigText(yaFolderID, yaAPIKey, text)
// By default language in config russian. For english must setup
// english language and voice
config.Lang = yask.LangEN
config.Voice = yask.VoiceNick
// speech synthesis
r, err := yask.TextToSpeech(config)
if err != nil {
log.Println(err)
return
}
// open file for save result
f, err := os.OpenFile("tts.wav", os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0655)
if err != nil {
log.Println(err)
return
}
defer f.Close()
// lpcm encoding to wav format
if err := yask.EncodePCMToWav(r, f, config.Rate, 16, 1); err != nil {
log.Println(err)
return
}
}
```
### Speech recognition to text
> Example of recognition of short audio. The example uses a wav file that can be used with a configuration format value of lpcm
```golang
package main
import (
"log"
"os"
"github.com/fcg-xvii/go-tools/speech/yask"
)
func main() {
yaFolderID := "b1g4..." // yandex folder id
yaAPIKey := "AQVNyr..." // yandex api key
dataFileName := "data.wav" // audio file in wav format for recodnition to text
// open audio file
f, err := os.Open(dataFileName)
if err != nil {
log.Println(err)
return
}
defer f.Close()
// init config for recodnition
config := yask.STTConfigDefault(yaFolderID, yaAPIKey, f)
// setup english language
config.Lang = yask.LangEN
// recodnition speech to text
text, err := yask.SpeechToTextShort(config)
if err != nil {
log.Println(err)
return
}
log.Println(text)
}
```
## License
The MIT License (MIT), see [LICENSE](LICENSE).