Báo cáo cụ @tpvl là em đã đuwuwowcj rồi ạ, đúng là chất âm nó mềm và sâu hơn DAC kia, đáng đồng tiền
Em hỏi thêm chút về các thông số này, cụ diễn giải giúp em nhé
1.
################################################################################
# License keys to enable GPU hardware decoding for various codecs
# to obtain keys visit the shop at
http://www.raspberrypi.com
################################################################################
# decode_MPG2=0x00000000
# decode_WVC1=0x00000000
# decode_DTS=0x00000000
# decode_DDP=0x00000000
2.
################################################################################
# Overscan settings
################################################################################
# Make display smaller to stop text spilling off the screen
# see also
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=67&t=15700
# overscan_scale=1
# disable_overscan=1
# Adapt overscan values to your needs
# overscan_left=57
# overscan_right=59
# overscan_top=20
# overscan_bottom=20
3.
# set to 'force_turbo=1' to disable dynamic overclocking (you can lose your warranty!)
force_turbo=0
# If you have any data corruption using Turbo Mode and overclocking
# try with this setting uncommented
# If this still fails, try to use Medium mode without "over_voltage=2"
# If it ultimately keeps failing, forget about this until it gets fixed
# Use a more conservative mode that will works fine in any cases:
# initial_turbo=30