Try getting Espeak to go through an alsa device, then configure that alsa device to convert mono to stereo -- should be doable via an appropriately configured .alsa file. ESpeak might well be using pulseaudio -- and that might complicate things.
-- Best Regards, --raman On 8/6/13, Geoff Shang <ge...@quitelikely.com> wrote: > Hi, > > I'm trying to get Espeakup working with an external USB soundcard, due to > the crash issues one faces when using Espeakup with the internal soundcard > on the Raspberry Pi. > > The problem I've run into is that the USB device doesn't know how to > handle mono audio. If I play a stereo file, it works fine. If I play a > mono one, it fails. > > I suspect that Espeakup is failing for the same reason. > > Since there doesn't appear to be any command line options to Espeakup to > make it do this, I wondered if there might be some ALSA trickery, like > using the ALSA_CARD variable to choose which soundcard to use. All the > solutions I've found so far however implement something at the plug level > which would appear to be a bit high up. > > Any thoughts on this? This is fairly urgent. > > Cheers, > Geoff. > > _______________________________________________ > Blinux-list mailing list > blinux-l...@redhat.com > https://www.redhat.com/mailman/listinfo/blinux-list > -- To UNSUBSCRIBE, email to debian-accessibility-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/cadkjx2h2dbgp0vcs5ucqnkhgwjzcol6nbqaw08z8s-gd1zx...@mail.gmail.com