I keep getting this error when trying to setup a dynamic range compressor. Does anyone have any experience using ladspa plugins with ALSA? I followed the howto on this site http://alsa.opensrc.org/index.php/ Ladspa_(plugin). I only deviated from their .asoundrc trying to troubleshoot. Currently using ALSA 1.0.14 mythtv@myth:~$ aplay -Dplug:drc downloads/bigsmegh.wav Playing WAVE 'downloads/bigsmegh.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono ALSA lib pcm_plug.c:746:(snd_pcm_plug_hw_refine_schange) Unable to find an usable slave format for 'stereo' ALSA lib pcm_plug.c:750:(snd_pcm_plug_hw_refine_schange) Format: FLOAT_LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S8 ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U8 ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S16_LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S16_BE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U16_LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U16_BE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S24_LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S24_BE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U24_LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U24_BE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S32_LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S32_BE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U32_LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U32_BE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: MU_LAW ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: A_LAW ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: IMA_ADPCM ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S24_3LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S24_3BE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U24_3LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U24_3BE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S20_3LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S20_3BE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U20_3LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U20_3BE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S18_3LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: S18_3BE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U18_3LE ALSA lib pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave format: U18_3BE ALSA lib pcm_plug.c:840:(snd_pcm_plug_hw_refine_cchange) Unable to find an usable client format ALSA lib pcm_plug.c:844:(snd_pcm_plug_hw_refine_cchange) Format: FLOAT_LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S8 ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U8 ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S16_LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S16_BE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U16_LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U16_BE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S24_LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S24_BE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U24_LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U24_BE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S32_LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S32_BE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U32_LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U32_BE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: MU_LAW ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: A_LAW ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: IMA_ADPCM ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S24_3LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S24_3BE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U24_3LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U24_3BE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S20_3LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S20_3BE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U20_3LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U20_3BE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S18_3LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: S18_3BE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U18_3LE ALSA lib pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave format: U18_3BE ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave) Slave PCM not usable aplay: set_params:878: Broken configuration for this PCM: no configurations available mythtv@myth:~$ cat .asoundrc pcm.drc { type ladspa slave.pcm "stereo" path "/usr/lib/ladspa" plugins { 0 { id 1403 #label dysonCompress input { #peak limit, release time, fast ratio, ratio controls [0 1 0.5 0.99] } } 1 { id 1913 #label fastLookaheadLimiter input { #InputGain(Db) -20 -> +20 ; #Limit (db) -20 -> 0 Release time (s) 0.01 -> 2 controls [ 10 0 0.8 ] } } } } pcm.stereo { type plug slave.pcm "plughw:0,0" } ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. 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