fix typos

src/audio/SDL_wave.c

@@ -813,7 +813,7 @@ static bool IMA_ADPCM_Init(WaveFile *file, size_t datalength)
 
     if (format->formattag == EXTENSIBLE_CODE) {
         /* There's no specification for this, but it's basically the same
-         * format because the extensible header has wSampePerBlocks too.
+         * format because the extensible header has wSamplePerBlocks too.
          */
     } else {
         // The Standards Update says there 'should' be 2 bytes for wSamplesPerBlock.
@@ -1852,7 +1852,7 @@ static bool WaveLoad(SDL_IOStream *src, WaveFile *file, SDL_AudioSpec *spec, Uin
 
     /* Step through all chunks and save information on the fmt, data, and fact
      * chunks. Ignore the chunks we don't know as per specification. This
-     * currently also ignores cue, list, and slnt chunks.
+     * currently also ignores cue, list, and inst chunks.
      */
     while ((Uint64)RIFFend > (Uint64)chunk->position + chunk->length + (chunk->length & 1)) {
         // Abort after too many chunks or else corrupt files may waste time.

src/audio/alsa/SDL_alsa_audio.c

@@ -652,7 +652,7 @@ static void swizzle_map_compute_alsa_subscan(const struct ALSA_pcm_cfg_ctx *ctx,
     }
 }
 
-// XXX: this must stay playback/recording symetric.
+// XXX: this must stay playback/recording symmetric.
 static void swizzle_map_compute(const struct ALSA_pcm_cfg_ctx *ctx, int *swizzle_map, bool *needs_swizzle)
 {
     *needs_swizzle = false;
@@ -1069,7 +1069,7 @@ static bool ALSA_pcm_cfg_hw(struct ALSA_pcm_cfg_ctx *ctx)
     }
 
     // Here, status == CHANS_N_NOT_CONFIGURED
-    return SDL_SetError("ALSA: Coudn't configure targetting any SDL supported channel number");
+    return SDL_SetError("ALSA: Couldn't configure targeting any SDL supported channel number");
 }
 #undef CHANS_N_SCAN_MODE__EQUAL_OR_ABOVE_REQUESTED_CHANS_N
 #undef CHANS_N_SCAN_MODE__BELOW_REQUESTED_CHANS_N
@@ -1150,7 +1150,7 @@ static bool ALSA_OpenDevice(SDL_AudioDevice *device)
         goto err_close_pcm;
     }
 
-    // from here, we get only the alsa chmap queries in cfg_ctx to explicitely clean, hwparams is
+    // from here, we get only the alsa chmap queries in cfg_ctx to explicitly clean, hwparams is
     // uninstalled upon pcm closing
 
     // This is useful for debugging

src/audio/qnx/SDL_qsa_audio.c

@@ -89,8 +89,8 @@ static void QSA_InitAudioParams(snd_pcm_channel_params_t * cpars)
 static bool QSA_WaitDevice(SDL_AudioDevice *device)
 {
     // Setup timeout for playing one fragment equal to 2 seconds
-    // If timeout occurred than something wrong with hardware or driver
-    // For example, Vortex 8820 audio driver stucks on second DAC because
+    // If timeout occurred then something wrong with hardware or driver
+    // For example, Vortex 8820 audio driver sticks on second DAC because
     // it doesn't exist !
     const int result = SDL_IOReady(device->hidden->audio_fd,
                                    device->recording ? SDL_IOR_READ : SDL_IOR_WRITE,