Fix user-facing and non-user-facing typos

Found via `codespell v2.1.dev0`

include/pa_asio.h

@@ -52,7 +52,7 @@ extern "C"
 #endif /* __cplusplus */
 
 
-/** Retrieve legal native buffer sizes for the specificed device, in sample frames.
+/** Retrieve legal native buffer sizes for the specified device, in sample frames.
 
  @param device The global index of the device about which the query is being made.
  @param minBufferSizeFrames A pointer to the location which will receive the minimum buffer size value.
@@ -112,7 +112,7 @@ PaError PaAsio_GetOutputChannelName( PaDeviceIndex device, int channelIndex,
  @param stream The stream to operate on.
  @param sampleRate The new sample rate. 
 
- Note that this function may fail if the stream is alredy running and the 
+ Note that this function may fail if the stream is already running and the 
  ASIO driver does not support switching the sample rate of a running stream.
 
  Returns paIncompatibleStreamHostApi if stream is not a paASIO stream.

include/pa_mac_core.h

@@ -112,20 +112,20 @@ AudioDeviceID PaMacCore_GetStreamOutputDevice( PaStream* s );
  * Returns a statically allocated string with the device's name
  * for the given channel. NULL will be returned on failure.
  *
- * This function's implemenation is not complete!
+ * This function's implementation is not complete!
  *
  * @param device The PortAudio device index.
  * @param channel The channel number who's name is requested.
  * @return a statically allocated string with the name of the device.
  *         Because this string is statically allocated, it must be
- *         coppied if it is to be saved and used by the user after
+ *         copied if it is to be saved and used by the user after
  *         another call to this function.
  *
  */
 const char *PaMacCore_GetChannelName( int device, int channelIndex, bool input );
 
     
-/** Retrieve the range of legal native buffer sizes for the specificed device, in sample frames.
+/** Retrieve the range of legal native buffer sizes for the specified device, in sample frames.
  
  @param device The global index of the PortAudio device about which the query is being made.
  @param minBufferSizeFrames A pointer to the location which will receive the minimum buffer size value.
@@ -158,7 +158,7 @@ PaError PaMacCore_GetBufferSizeRange( PaDeviceIndex device,
  * are supported by the device. */
 #define paMacCoreFailIfConversionRequired (0x02)
 
-/** These flags set the SR conversion quality, if required. The wierd ordering
+/** These flags set the SR conversion quality, if required. The weird ordering
  * allows Maximum Quality to be the default.*/
 #define paMacCoreConversionQualityMin    (0x0100)
 #define paMacCoreConversionQualityMedium (0x0200)

include/pa_win_wasapi.h

@@ -267,7 +267,7 @@ PaWasapiJackDescription;
 /** Stream category.
    Note:
     - values are equal to WASAPI AUDIO_STREAM_CATEGORY enum
-    - supported since Windows 8.0, noop on earler versions
+    - supported since Windows 8.0, noop on earlier versions
     - values 1,2 are deprecated on Windows 10 and not included into enumeration
 
  @version Available as of 19.6.0
@@ -291,7 +291,7 @@ PaWasapiStreamCategory;
 /** Stream option.
    Note:
     - values are equal to WASAPI AUDCLNT_STREAMOPTIONS enum
-    - supported since Windows 8.1, noop on earler versions
+    - supported since Windows 8.1, noop on earlier versions
 
  @version Available as of 19.6.0
 */
@@ -380,7 +380,7 @@ PaError PaWasapi_UpdateDeviceList();
 /** Get current audio format of the device assigned to the opened stream.
 
     Format is represented by PaWinWaveFormat or WAVEFORMATEXTENSIBLE structure.
-    Use this function to reconfirm format if PA's processor is overriden and
+    Use this function to reconfirm format if PA's processor is overridden and
     paWinWasapiRedirectHostProcessor flag is specified.
 
  @param pStream    Pointer to PaStream object.
@@ -388,7 +388,7 @@ PaError PaWasapi_UpdateDeviceList();
  @param formatSize Size of PaWinWaveFormat or WAVEFORMATEXTENSIBLE structure in bytes.
  @param bOutput    TRUE (1) for output stream, FALSE (0) for input stream.
 
- @return Non-negative value indicating the number of bytes copied into format decriptor
+ @return Non-negative value indicating the number of bytes copied into format descriptor
          or, a PaErrorCode (which is always negative) if PortAudio is not initialized
          or an error is encountered.
 */
@@ -404,7 +404,7 @@ int PaWasapi_GetDeviceCurrentFormat( PaStream *pStream, void *pFormat, unsigned
  @param  formatSize Size of PaWinWaveFormat or WAVEFORMATEXTENSIBLE structure in bytes.
  @param  device     Device index.
 
- @return Non-negative value indicating the number of bytes copied into format decriptor
+ @return Non-negative value indicating the number of bytes copied into format descriptor
          or, a PaErrorCode (which is always negative) if PortAudio is not initialized
          or an error is encountered.
 */
@@ -420,7 +420,7 @@ int PaWasapi_GetDeviceDefaultFormat( void *pFormat, unsigned int formatSize, PaD
  @param  formatSize Size of PaWinWaveFormat or WAVEFORMATEXTENSIBLE structure in bytes.
  @param  device     Device index.
 
- @return Non-negative value indicating the number of bytes copied into format decriptor
+ @return Non-negative value indicating the number of bytes copied into format descriptor
          or, a PaErrorCode (which is always negative) if PortAudio is not initialized
          or an error is encountered.
 */
@@ -468,7 +468,7 @@ PaError PaWasapi_ThreadPriorityRevert( void *pTask );
 /** Get number of frames per host buffer.
 
     It is max value of frames of WASAPI buffer which can be locked for operations.
-    Use this method as helper to findout max values of inputFrames/outputFrames
+    Use this method as helper to find out max values of inputFrames/outputFrames
     of PaWasapiHostProcessorCallback.
 
  @param  pStream Pointer to PaStream object.
@@ -624,7 +624,7 @@ PaError PaWasapiWinrt_PopulateDeviceList( const unsigned short **pId, const unsi
         under Windows Vista x64 when application is WOW64(32-bit) and Event-Driven method simply
         times out (event handle is never signalled on buffer completion). Please note, such WOW64 bug
         does not exist in Vista x86 or Windows 7.
-        Polling can be setup by speciying 'paWinWasapiPolling' flag. Our WASAPI implementation detects
+        Polling can be setup by specifying 'paWinWasapiPolling' flag. Our WASAPI implementation detects
         WOW64 bug and sets 'paWinWasapiPolling' automatically.
 
     Thread priority:

include/pa_win_wmme.h

@@ -109,7 +109,7 @@ typedef struct PaWinMmeStreamInfo{
         If devices are specified here, the corresponding device parameter
         to Pa_OpenStream() should be set to paUseHostApiSpecificDeviceSpecification,
         otherwise an paInvalidDevice error will result.
-        The total number of channels accross all specified devices
+        The total number of channels across all specified devices
         must agree with the corresponding channelCount parameter to
         Pa_OpenStream() otherwise a paInvalidChannelCount error will result.
     */