[Samsung Galaxy Alpha] x33k:
I am on mobile so couldn't upload the file, sorry about that. But i copied and pasted the contents of system/etc/audio_policy.conf here. Hope this helps.

global_configuration {

attached_output_devices AUDIO_DEVICE_OUT_EARPIECE|AUDIO_DEVICE_OUT_SPEAKER

default_output_device AUDIO_DEVICE_OUT_SPEAKER

attached_input_devices AUDIO_DEVICE_IN_BUILTIN_MIC|AUDIO_DEVICE_IN_BACK_MIC|AUDIO_DEVICE_IN_VOICE_CALL|AUDIO_DEVICE_IN_REMOTE_SUBMIX|AUDIO_DEVICE_IN_PLAYBACK

}

audio_hw_modules {

primary {

outputs {

primary {

sampling_rates 48000

channel_masks AUDIO_CHANNEL_OUT_STEREO

formats AUDIO_FORMAT_PCM_16_BIT|AUDIO_FORMAT_PCM_24_BIT

devices AUDIO_DEVICE_OUT_EARPIECE|AUDIO_DEVICE_OUT_SPEAKER|AUDIO_DEVICE_OUT_ALL_SCO|AUDIO_DEVICE_OUT_WIRED_HEADSET|AUDIO_DEVICE_OUT_WIRED_HEADPHONE

flags AUDIO_OUTPUT_FLAG_PRIMARY

}

hdmi {

sampling_rates 48000

channel_masks dynamic

formats AUDIO_FORMAT_PCM_16_BIT

devices AUDIO_DEVICE_OUT_AUX_DIGITAL

flags AUDIO_OUTPUT_FLAG_MULTI_CH

}

voip_rx {

sampling_rates 8000|16000

channel_masks AUDIO_CHANNEL_OUT_MONO

formats AUDIO_FORMAT_PCM_16_BIT|AUDIO_FORMAT_AMR_NB|AUDIO_FORMAT_AMR_WB|AUDIO_FORMAT_QCELP|AUDIO_FORMAT_EVRC|AUDIO_FORMAT_EVRCB|AUDIO_FORMAT_EVRCWB

devices AUDIO_DEVICE_OUT_EARPIECE|AUDIO_DEVICE_OUT_SPEAKER|AUDIO_DEVICE_OUT_WIRED_HEADSET|AUDIO_DEVICE_OUT_WIRED_HEADPHONE|AUDIO_DEVICE_OUT_ALL_SCO|AUDIO_DEVICE_OUT_ALL_A2DP|AUDIO_DEVICE_OUT_PROXY|AUDIO_DEVICE_OUT_AUX_DIGITAL|AUDIO_DEVICE_OUT_USB_ACCESSORY

flags AUDIO_OUTPUT_FLAG_DIRECT|AUDIO_OUTPUT_FLAG_VOIP_RX

}

tunnel {

sampling_rates 8000|11025|12000|16000|22050|24000|32000|44100|48000

channel_masks AUDIO_CHANNEL_OUT_STEREO|AUDIO_CHANNEL_OUT_MONO

formats AUDIO_FORMAT_MP3|AUDIO_FORMAT_AAC_LC|AUDIO_FORMAT_AAC_HE_V1|AUDIO_FORMAT_AAC_HE_V2|AUDIO_FORMAT_AMR_WB|AUDIO_FORMAT_AMR_WB_PLUS

devices AUDIO_DEVICE_OUT_SPEAKER|AUDIO_DEVICE_OUT_EARPIECE|AUDIO_DEVICE_OUT_WIRED_HEADSET|AUDIO_DEVICE_OUT_WIRED_HEADPHONE|AUDIO_DEVICE_OUT_ALL_SCO|AUDIO_DEVICE_OUT_ALL_A2DP|AUDIO_DEVICE_OUT_AUX_DIGITAL|AUDIO_DEVICE_OUT_PROXY|AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET|AUDIO_DEVICE_OUT_USB_ACCESSORY

flags AUDIO_OUTPUT_FLAG_DIRECT|AUDIO_OUTPUT_FLAG_TUNNEL

}

deep_buffer {

sampling_rates 48000

channel_masks AUDIO_CHANNEL_OUT_STEREO

formats AUDIO_FORMAT_PCM_16_BIT

devices AUDIO_DEVICE_OUT_EARPIECE|AUDIO_DEVICE_OUT_SPEAKER|AUDIO_DEVICE_OUT_ALL_SCO|AUDIO_DEVICE_OUT_WIRED_HEADSET|AUDIO_DEVICE_OUT_WIRED_HEADPHONE

flags AUDIO_OUTPUT_FLAG_DEEP_BUFFER

}

}

inputs {

primary {

sampling_rates 8000|11025|16000|22050|24000|32000|44100|48000

channel_masks AUDIO_CHANNEL_IN_MONO|AUDIO_CHANNEL_IN_STEREO|AUDIO_CHANNEL_IN_VOICE_UPLINK|AUDIO_CHANNEL_IN_VOICE_DNLINK

formats AUDIO_FORMAT_PCM_16_BIT

devices AUDIO_DEVICE_IN_BUILTIN_MIC|AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET|AUDIO_DEVICE_IN_WIRED_HEADSET|AUDIO_DEVICE_IN_BACK_MIC|AUDIO_DEVICE_IN_FM|AUDIO_DEVICE_IN_VOICE_CALL|AUDIO_DEVICE_IN_THIRD_MIC

}

}

}

a2dp {

outputs {

a2dp {

sampling_rates 44100

channel_masks AUDIO_CHANNEL_OUT_STEREO

formats AUDIO_FORMAT_PCM_16_BIT

devices AUDIO_DEVICE_OUT_ALL_A2DP

}

}

inputs {

a2dp {

sampling_rates 44100|48000

channel_masks AUDIO_CHANNEL_IN_MONO|AUDIO_CHANNEL_IN_STEREO

formats AUDIO_FORMAT_PCM_16_BIT

devices AUDIO_DEVICE_IN_BLUETOOTH_A2DP

}

}

}

usb {

outputs {

usb_accessory {

sampling_rates 44100

channel_masks AUDIO_CHANNEL_OUT_STEREO

formats AUDIO_FORMAT_PCM_16_BIT

devices AUDIO_DEVICE_OUT_USB_ACCESSORY

}

usb_device {

sampling_rates 44100|48000

channel_masks AUDIO_CHANNEL_OUT_STEREO

formats AUDIO_FORMAT_PCM_16_BIT

devices AUDIO_DEVICE_OUT_USB_DEVICE|AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET

}

}

}

tms {

outputs {

tms {

sampling_rates 8000|11025|12000|16000|22050|24000|32000|44100|48000

channel_masks AUDIO_CHANNEL_OUT_STEREO

formats AUDIO_FORMAT_PCM_16_BIT

devices AUDIO_DEVICE_OUT_EXTERNAL_TMS

}

}

inputs {

tms {

sampling_rates 8000|11025|12000|16000|22050|24000|32000|44100|48000

channel_masks AUDIO_CHANNEL_IN_MONO|AUDIO_CHANNEL_IN_STEREO

formats AUDIO_FORMAT_PCM_16_BIT

devices AUDIO_DEVICE_IN_EXTERNAL_TMS

}

}

}

r_submix {

outputs {

submix {

sampling_rates 48000

channel_masks AUDIO_CHANNEL_OUT_STEREO

formats AUDIO_FORMAT_PCM_16_BIT

devices AUDIO_DEVICE_OUT_REMOTE_SUBMIX

}

}

inputs {

submix {

sampling_rates 48000

channel_masks AUDIO_CHANNEL_IN_STEREO

formats AUDIO_FORMAT_PCM_16_BIT

devices AUDIO_DEVICE_IN_REMOTE_SUBMIX

}

}

}

playback_record {

inputs {

playback_record {

sampling_rates 48000

channel_masks AUDIO_CHANNEL_IN_STEREO

formats AUDIO_FORMAT_PCM_16_BIT

devices AUDIO_DEVICE_IN_PLAYBACK

}

}

}

}