4 Jan
2003
4 Jan
'03
3:06 a.m.
Hi,
I am building a sound editor and need an API for playing 'wav'
file samples. I tried the SOX API but the quality is very bad. Is there
some other API, I can try. Kindly advice.
4 Jan
4 Jan
3:17 a.m.
On Sat, 4 Jan 2003 12:30:24 +0530 (IST)
Vandana <vandana(a)gdit.iiit.net> wrote:
Hi,
I am building a sound editor and need an API for playing 'wav'
file samples. I tried the SOX API but the quality is very bad. Is there
some other API, I can try.
There are a number of APIs.
For reading audio files (WAV and others), the most commonly used one around
here is libsndfile:
http://www.zip.com.au/~erikd/libsndfile/
as well as audiofile and one or two others.
For playing files there is OSS (easy but will be dropped for the 2.6 Linux
kernel), ALSA (the future of audio on Linux), PortAudio (one API which is
portable across many platforms), Jack (client/server architecture for
allowing apps to communicate with one another) and probably others. Search
for them on http://www.google.com/linux/ .
The libsndfile source code includes an example sound file player which
uses OSS for Linux, but also works on Solaris, Win32 and MacOSX.
Erik
--
+-----------------------------------------------------------+
Erik de Castro Lopo nospam(a)mega-nerd.com (Yes it's valid)
+-----------------------------------------------------------+
I hack, therefore I am.
11:57 a.m.
I want to play sound samples (sorry for using 'wav', I just want
to play raw sound samples) that are resident in memory. I want to play
the samples (not read or write files). Which is the most convenient and
easy to use library for this purpose?
On Sat, 4 Jan 2003, Erik de Castro Lopo wrote:
On Sat, 4 Jan 2003 12:30:24 +0530 (IST)
Vandana <vandana(a)gdit.iiit.net> wrote:
Hi,
I am building a sound editor and need an API for playing 'wav'
file samples. I tried the SOX API but the quality is very bad. Is there
some other API, I can try.
There are a number of APIs.
For reading audio files (WAV and others), the most commonly used one around
here is libsndfile:
http://www.zip.com.au/~erikd/libsndfile/
as well as audiofile and one or two others.
For playing files there is OSS (easy but will be dropped for the 2.6 Linux
kernel), ALSA (the future of audio on Linux), PortAudio (one API which is
portable across many platforms), Jack (client/server architecture for
allowing apps to communicate with one another) and probably others. Search
for them on http://www.google.com/linux/ .
The libsndfile source code includes an example sound file player which
uses OSS for Linux, but also works on Solaris, Win32 and MacOSX.
Erik
12:44 p.m.
On Saturday 04 January 2003 16.51, Vandana wrote:
I want to play sound samples (sorry for using
'wav', I just want
to play raw sound samples) that are resident in memory. I want to
play the samples (not read or write files). Which is the most
convenient and easy to use library for this purpose?
Well, Audiality can do that (and other things), but it's still in
heavy development. (The highest level API and the scripting language
probably won't change much, but I did change naming conventions
between 0.1.0 and the upcoming 0.1.1...)
SDL_mixer is another alternative. Quite similar to Audiality in some
ways, although more focused on SFX and music for games. (Audiality is
turning into something different; game SFX is no longer the top
priority.)
(Both depend on SDL currently, but it'll be optional for future
Audiality releases. Just need proper ALSA support and a C sound file
lib.)
If you want something dead simple (ie just play 44.1 kHz sounds with
44.1 kHz output), you might just want to roll your own - but as soon
as you start doing resampling, looping, click-free volume/pan control
and stuff, complexity tends to explode.
//David Olofson - Programmer, Composer, Open Source Advocate
.- The Return of Audiality! --------------------------------.
| Free/Open Source Audio Engine for use in Games or Studio. |
| RT and off-line synth. Scripting. Sample accurate timing. |
`---------------------------> http://olofson.net/audiality -'
--- http://olofson.net --- http://www.reologica.se ---
12:52 p.m.
I want to play sound samples (sorry for using
'wav', I just want
to play raw sound samples) that are resident in memory. I want to play
the samples (not read or write files). Which is the most convenient and
easy to use library for this purpose?
i'm not trying to be a PITA, but you haven't actually defined the goal
clearly enough, though i have no doubt that you think you have.
what does "play the samples" mean? make them audible to a user? make
them audible to some other user? make them available to another
program? make them appear on which of several audio interfaces?
basically, there is no "convenient and easy to use library for this
purpose" because "this purpose" is not well-defined. if you have to
choose one, i would recommend PortAudio, but even it will not do all
that you want.
and to be a bit repetetive: why are you writing a sound file editor?
we have several good soundfile editors already available in source
form, of which snd, sweep and audacity are probably the best at this
time. why not spend your efforts improving these good programs instead
of doing it over? you may find it fun, and useful in an educational
sense, but almost nobody else will. if nothing else, start from one of
them and tear it to pieces rather than building a new one from
scratch.
--p
4:01 a.m.
04/01/03 12:30, Vandana wrote:
Hi,
I am building a sound editor and need an API for playing 'wav'
file samples. I tried the SOX API but the quality is very bad. Is there
some other API, I can try. Kindly advice.
I'm not sure what it is that you want to do. Do you want to play wav
files from the commandline or do you want to load them into memory and
then play them from there?
If the quality of SOX is bad then you are probably not using it
properly. Otherwise you can look at libaudiofile or libsndfile, both
of these support WAV file loading.
Pascal.
7986
days inactive
7986
days old
linux-audio-dev@lists.linuxaudio.org
6 comments
6 participants
participants (6)
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David Olofson -
Davy Durham -
Erik de Castro Lopo -
Pascal Haakmat -
Paul Davis -
Vandana