disable tagger on not main, created first example

.github/workflows/tagger.yml

@@ -2,7 +2,7 @@ name: tagger
 on:
   push:
     branches:
-      - "*"
+      - "main"
 
 jobs:
   tagger:

.gitignore

@@ -13,4 +13,57 @@
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
-executable
+executable
+
+## All files with audio format
+# Ignore standart audio files
+*.3gp
+*.aa
+*.aac
+*.aax
+*.act
+*.aiff
+*.alac
+*.amr
+*.ape
+*.au
+*.awb
+*.dss
+*.flac
+*.gsm
+*.m4a
+*.m4b
+*.m4p
+*.mp3
+*.mpc
+*.ogg
+*.oga
+*.mogg
+*.ulaw
+*.opus
+*.pcm
+*.ra
+*.rm
+*.raw
+*.rf64
+*.sln
+*.tta
+*.voc
+*.vox
+*.wav
+*.wma
+*.webm
+*.8svx
+*.cda
+# Ignore raw audio files
+*.raw
+*.wv
+*.mid
+*.midi
+*.mod
+*.mpa
+*.mp1
+*.mp2
+*.mp3
+*.ul
+*.al

examples/transcoder/ulaw_2_wav.go

@@ -0,0 +1,58 @@
+package main
+
+import (
+	"fmt"
+	"math/rand"
+	"os"
+
+	"github.com/sopro-dev/sopro-core/audio"
+	"github.com/sopro-dev/sopro-core/audio/formats/pcm"
+	"github.com/sopro-dev/sopro-core/audio/formats/ulaw"
+)
+
+func main() {
+	numSamples := 80000
+	numChannels := 2
+	samplesPerSecond := 44100
+
+	inputData := make([]byte, numSamples*numChannels)
+	for i := 0; i < numSamples; i++ {
+		// Calculate the current second
+		currentSecond := i / samplesPerSecond
+
+		// Generate noise for the first second, then silence for the second second
+		if currentSecond%2 == 0 {
+			sample := byte(127 * (2.0*rand.Float64() - 1.0)) // Generate random noise
+			inputData[i*numChannels] = sample
+			inputData[i*numChannels+1] = sample
+		} else {
+			inputData[i*numChannels] = 0   // Silence
+			inputData[i*numChannels+1] = 0 // Silence
+		}
+	}
+
+	audioInfo := audio.AudioInfo{
+		SampleRate:  44100,
+		Channels:    numChannels,
+		BitDepth:    16,
+		FloatFormat: false,
+	}
+
+	transcoder := audio.NewTranscoder(&pcm.PCMFormat{}, &ulaw.ULawFormat{})
+	outputData := transcoder.Transcode(inputData, audioInfo)
+
+	// Process the output data as needed...
+	fmt.Println(outputData[:200])
+
+	// Store the output data to a file...
+	f, err := os.Create("output.ul")
+	if err != nil {
+		panic(err)
+	}
+	defer f.Close()
+
+	_, err = f.Write(outputData)
+	if err != nil {
+		panic(err)
+	}
+}