audio: update examples

Signed-off-by: HiFiPhile <[email protected]>

Author: HiFiPhile

examples/device/audio_4_channel_mic/src/main.c

@@ -12,11 +12,11 @@
     # print(sd.query_devices())
 
     fs = 48000           # Sample rate
-    duration = 100e-3    # Duration of recording
+    duration = 3    # Duration of recording
 
     if platform.system() == 'Windows':
         # MME is needed since there are more than one MicNode device APIs (at least in Windows)
-        device = 'Microphone (MicNode) MME'
+        device = 'Microphone (MicNode), Windows WASAPI'
     elif platform.system() == 'Darwin':
         device = 'MicNode'
     else:

examples/device/audio_4_channel_mic_freertos/src/main.c

@@ -117,7 +117,7 @@ extern "C" {
 #define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX                            1                                       // Driver gets this info from the descriptors - we define it here to use it to setup the descriptors and to do calculations with it below - be aware: for different number of channels you need another descriptor!
 #define CFG_TUD_AUDIO_EP_SZ_IN                                        TUD_AUDIO_EP_SIZE(CFG_TUD_AUDIO_FUNC_1_SAMPLE_RATE, CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX, CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX)
 #define CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX                             CFG_TUD_AUDIO_EP_SZ_IN
-#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ                          (TUD_OPT_HIGH_SPEED ? 8 : 1) * CFG_TUD_AUDIO_EP_SZ_IN // Example write FIFO every 1ms, so it should be 8 times larger for HS device
+#define CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ                          (TUD_OPT_HIGH_SPEED ? 32 : 4) * CFG_TUD_AUDIO_EP_SZ_IN // Example write FIFO every 1ms, so it should be 8 times larger for HS device
 
 #ifdef __cplusplus
 }