Speaker speaking too fast

HI !after update to 0.0.55 ,My Jabra 410 will become speaking too fast ,before version i can use rate 48000 put in asound.conf to fix it,but after update my speaker not working fine ,when put rate 48000
in asound.conf ,then run sam test speaker ,will show × Error: ALSA lib pcm_plug.c:1263:(_snd_pcm_plug_open) Unknown field rate. anyone know how to fix it?

Thanks