Check soundcard settings: bitrate

To check settings 
 Which
sound cards are installed, and what number are they? 
 > cat /proc/asound/cards 
 0 [NVidia

]: HDA-Intel - HDA NVidia 
 

HDA NVidia at 0xfc080000 irq 69 
 1 [Generic

]: HDA-Intel - HD-Audio Generic 
 

HD-Audio Generic at 0xfc500000 irq 72 
 2 [USB

]: USB-Audio - Scarlett 2i2 USB 
 

Focusrite Scarlett 2i2 USB at usb-0000:30:00.4-2.3, high speed 
 3 [Pro

]: USB-Audio - FiiO K5 Pro 
 

GuangZhou FiiO Electronics Co.,Ltd FiiO K5 Pro at usb-0000:30:00.4-1, high spee 
 Focusrite Scarlett 2i2 
 > cat /proc/asound/card2/stream0 
Focusrite Scarlett 2i2 USB at usb-0000:30:00.4-2.3, high speed : USB Audio

Playback:
 Status: Stop
 Interface 1
 Altset 1
 Format: S32_LE
 Channels: 2
 Endpoint: 0x01 (1 OUT) (SYNC)
 Rates: 44100, 48000, 88200, 96000, 176400, 192000
 Data packet interval: 125 us
 Bits: 24
 Channel map: FL FR

Capture:
 Status: Running
 Interface = 2
 Altset = 1
 Packet Size = 200
 Momentary freq = 192000 Hz (0x18.0000)
 Interface 2
 Altset 1
 Format: S32_LE
 Channels: 2
 Endpoint: 0x82 (2 IN) (ASYNC)
 Rates: 44100, 48000, 88200, 96000, 176400, 192000
 Data packet interval: 125 us
 Bits: 24
 Channel map: FL FR 
 UCA202: 
 # cat /proc/asound/CODEC/pcm0p/sub0/hw_params 
 # cat /proc/asound/card0/codec#0  
 access: MMAP_INTERLEAVED
format: S16_LE
subformat: STD
channels: 2 <-------- will be 4 for iO4
rate: 48000 (48000/1) <------ this changes with the input audio file
period_size: 44100
buffer_size: 88200 
 FiiO 
 48kHz and below: BLUE 
 48kHz and above: YELLOW 
 DSD: GREEN 
 # cat /proc/asound/card0/stream0 | grep Momentary 
 or 
 # cat /proc/asound/card1/stream0 | grep Momentary 
 Momentary freq = 44095 Hz (0x5.8308) 
 - - - - 
 # cat /proc/asound/card0/stream0  
 # cat /proc/asound/card0/pcm0p/sub0/hw_params 
 GuangZhou FiiO Electronics Co.,Ltd FiiO K5 Pro at usb-0000:00:12.2-3, high spee : USB Audio

Playback:
 Status: Running
 Interface = 1
 Altset = 2
 Packet Size = 36
 Momentary freq = 44095 Hz (0x5.8308)
 Feedback Format = 16.16
 Interface 1
 Altset 1
 Format: S32_LE
 Channels: 2
 Endpoint: 1 OUT (ASYNC)
 Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
 Data packet interval: 125 us
 Interface 1
 Altset 2
 Format: S16_LE
 Channels: 2
 Endpoint: 1 OUT (ASYNC)
 Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
 Data packet interval: 125 us
 Interface 1
 Altset 3
 Format: SPECIAL
 Channels: 2
 Endpoint: 1 OUT (ASYNC)
 Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
 Data packet interval: 125 us 
 FiiO via S/PDIF 
 # cat /proc/asound/card1/pcm1p/sub0/hw_params 
 access: MMAP_INTERLEAVED
format: S32_LE
subformat: STD
channels: 2
rate: 48000 (48000/1)
period_size: 1024
buffer_size: 32768