~$ apt-cache show alsa-oss

Package: alsa-oss
Status: install ok installed
Priority: optional
Section: sound
Installed-Size: 216
Maintainer: Debian ALSA Maintainers <pkg-alsa-devel@lists.alioth.debian.org>
Architecture: i386
Version: 1.0.11-1
Depends: libasound2 (>> 1.0.10), libc6 (>= 2.3.6-6)
Description: ALSA wrapper for OSS applications
 This package contains a program loader, aoss, which wraps
 applications written for OSS in a compatibility library,
 thus allowing them to work with ALSA.
 .
 There are two ways of getting an application to work with
 ALSA if the application was written for OSS. The first way
 is to load the special ALSA drivers that emulate the OSS
 kernel interface; these allow the application to open
 /dev/dsp0 and other OSS device files. The second way is
 to wrap the application in the libaoss library provided
 in this package; the wrapper causes the application to
 access native ALSA device files such as /dev/snd/pcmC0D0c
 instead of OSS device files.
 .
 Use of the alsa-oss library is recommended over the use of
 OSS-emulation drivers if you want to use ALSA's PCM plugin
 layer.
 .
 ALSA is the Advanced Linux Sound Architecture:
     http://alsa.sourceforge.net
 OSS is the free version of the Open Sound System.



//////////////////////////////

~$ apt-cache show festival
Package: festival
Priority: optional
Section: sound
Installed-Size: 2008
Maintainer: Matthias Urlichs <smurf@debian.org>
Architecture: i386
Version: 1.4.3-17.2
Depends: libaudiofile0 (>= 0.2.3-4), libc6 (>= 2.3.6-6), libesd0 (>= 0.2.35) | libesd-alsa0 (>= 0.2.35), libestools1.2, libgcc1 (>= 1:4.1.0), libncurses5 (>= 5.4-5), libstdc++6 (>= 4.1.0), sgml-base (>= 1.17), festvox-kallpc16k | festival-voice
Conflicts: festvox-rablpc8k (<< 1.4.0-2), festvox-rablpc16k (<< 1.4.0-2), festvox-kdlpc16k (<< 1.4.0-4), festvox-kdlpc8k (<< 1.4.0-5), festvox-don (<< 1.4.0-3), festvox-ellpc11k (<< 1.4.0-1), festlex-cmu (<< 1.4.0-3), festlex-oald (<< 1.4.0-2), festlex-poslex (<< 1.4.0-3)
Filename: pool/main/f/festival/festival_1.4.3-17.2_i386.deb
Size: 726306
MD5sum: 2551fd4ee18572866968fe8e199f3205
SHA1: fb6e342a65488cb5e61ab125dc4a69f01be1fe1f
SHA256: 722543edb4a3e77069b201e9b4298d031fb892a8e732b0aea9e12037ac41602e
Description: general multi-lingual speech synthesis system
 Festival offers a full text to speech system with various APIs, as
 well an environment for development and research of speech synthesis
 techniques. It includes a Scheme-based command interpreter.
 .
 Besides research into speech synthesis, festival is useful as a
 stand-alone speech synthesis program. It is capable of producing
 clearly understandable speech from text.
Tag: accessibility::speech, devel::interpreter, interface::text-mode, made-of::lang:scheme, role::sw:client, role::sw:server, sound::speech, uitoolkit::ncurses, works-with::audio