Subject: Re: [linux-audio-dev] es1371 OSS problem
From: Adam Williams (broadcast_AT_earthling.net)
Date: Sun Mar 18 2001 - 21:02:29 EET
The es1371 limits recording to -3db, probably to increase shipments of
the higher end cards. Even if the OSS ioctls worked you'd only get 15
bits of dynamic range out of it. Think about buying a SBLive or an
M-Audio card or wait until those become affordable before throwing a
month at the es1371.
> Hello world. While trying to develop a minimalistic audio multitrack
> program http://freshmeat.net/projects/simplemultitrack/ I have
> discovered an unfortunate problem with the Linux Creative/Ensoniq 1371
> OSS driver. After calling the SNDCTL_DSP_SETTRIGGER ioctl() to stop
> the ADC and DAC, the card should be stopped until the
> SNDCTL_DSP_SETTRIGGER ioctl() is used again to start the ADC and DAC.
> But a write() call to the soundcard file descriptor will start the
> converters again. The card reports that it supports DSP_CAP_TRIGGER
> but that doesn't seem to be the case.
>
> Does anyone know of any soundcards that correctly support
> DSP_CAP_DUPLEX and DSP_CAP_TRIGGER under Linux
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