Correct misspelled signal to signal

Author: pschatzmann

src/AudioTools/AudioCodecs/CodecOpus.h

@@ -90,7 +90,7 @@ struct OpusEncoderSettings : public OpusSettings {
   /// OPUS_BANDWIDTH_FULLBAND
   int max_bandwidth = -1;
   /// OPUS_AUTO,  OPUS_SIGNAL_VOICE, OPUS_SIGNAL_MUSIC
-  int singal = -1;
+  int signal = -1;
   ///  0, 1
   int inband_fec = -1;
   /// 0, 1, 2, 5
@@ -417,9 +417,9 @@ class OpusAudioEncoder : public AudioEncoder {
       LOGE("invalid max_bandwidth: %d", cfg.max_bandwidth);
       ok = false;
     }
-    if (cfg.singal >= 0 &&
-        opus_encoder_ctl(enc, OPUS_SET_SIGNAL(cfg.singal)) != OPUS_OK) {
-      LOGE("invalid singal: %d", cfg.singal);
+    if (cfg.signal >= 0 &&
+        opus_encoder_ctl(enc, OPUS_SET_SIGNAL(cfg.signal)) != OPUS_OK) {
+      LOGE("invalid signal: %d", cfg.signal);
       ok = false;
     }
     if (cfg.inband_fec >= 0 &&

src/AudioTools/AudioLibs/AudioFaust.h

@@ -20,7 +20,7 @@ class FaustStream : public AudioStream {
         with_output_buffer = useSeparateOutputBuffer;
     }
 
-    /// Constructor for Faust as Singal Processor - changing an input signal and sending it to out
+    /// Constructor for Faust as signal Processor - changing an input signal and sending it to out
     FaustStream(Print &out, bool useSeparateOutputBuffer=true){
         p_out = &out;
         with_output_buffer = useSeparateOutputBuffer;

src/AudioTools/AudioLibs/I2SCodecStream.h

@@ -303,7 +303,7 @@ class I2SCodecStream : public AudioStream, public VolumeSupport {
     codec_cfg.i2s.bits = toCodecBits(info.bits_per_sample);
     codec_cfg.i2s.rate = toRate(info.sample_rate);
     codec_cfg.i2s.fmt = toFormat(info.i2s_format);
-    codec_cfg.i2s.singal_type = (singal_t) info.signal_type;
+    codec_cfg.i2s.signal_type = (signal_t) info.signal_type;
     // use reverse logic for codec setting
     codec_cfg.i2s.mode = info.is_master ? MODE_SLAVE : MODE_MASTER;
     if (p_board == nullptr) return false;

src/AudioTools/CoreAudio/AudioI2S/I2SESP32V1.h

@@ -594,7 +594,7 @@ class I2SDriverESP32V1 {
       default:
         break;
     }
-    LOGE("Unsupported singal_type");
+    LOGE("Unsupported signal_type");
     return i2s;
   }
 };