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[a897456]

(base) rian0532@DESKTOP-PQV8NDO:/mnt/e/000/codec2/build_linux$ aplay -f S16_LE hts1a_c2_2400.raw ALSA lib confmisc.c:855:(parse_card) cannot find card '0' ALSA lib conf.c:5178:(_snd_config_evaluate) function snd_func_card_inum returned error: No such file or directory ALSA lib confmisc.c:422:(snd_func_concat) error evaluating strings ALSA lib conf.c:5178:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1334:(snd_func_refer) error evaluating name ALSA lib conf.c:5178:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5701:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2664:(snd_pcm_open_noupdate) Unknown PCM default aplay: main:831: audio open error: No such file or directory

[tmiw]

Does something like this work for you?

(base) rian0532@DESKTOP-PQV8NDO:/mnt/e/000/codec2/build_linux$ aplay -f S16_LE ../raw/hts1.raw

If not, I'd suspect a sound device issue on your local PC based on the error messages you've provided.

[a897456]

(base) rian0532@DESKTOP-PQV8NDO:/mnt/e/000/codec2/build_linux$ aplay -f S16_LE ../raw/hts1.raw ALSA lib confmisc.c:855:(parse_card) cannot find card '0' ALSA lib conf.c:5178:(_snd_config_evaluate) function snd_func_card_inum returned error: No such file or directory ALSA lib confmisc.c:422:(snd_func_concat) error evaluating strings ALSA lib conf.c:5178:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1334:(snd_func_refer) error evaluating name ALSA lib conf.c:5178:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5701:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2664:(snd_pcm_open_noupdate) Unknown PCM default aplay: main:831: audio open error: No such file or directory

The same problem

[a897456]

Can I change the output file (such like hts1a_c2_2400.raw) to a file (such like hts1a_c2_2400.wav) that the system can play?

[tmiw]

I just tested on Ubuntu 22.04 and I'm able to play raw files with no problems:

parallels@ubuntu-linux-22-04-desktop:~/freedv-gui/codec2/raw$ aplay -f S16_LE hts1.raw 
Playing raw data 'hts1.raw' : Signed 16 bit Little Endian, Rate 8000 Hz, Mono
^CAborted by signal Interrupt...
aplay: pcm_write:2127: write error: Interrupted system call
parallels@ubuntu-linux-22-04-desktop:~/freedv-gui/codec2/raw$

You can try converting to WAV using something like Audacity or sox but I suspect you're going to run into the (likely) same local configuration issue that you'e running into now.