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From: "Juanma Barranquero" <lekktu@gmail.com>
To: "Michael Schierl" <schierlm@gmx.de>
Cc: 250@emacsbugs.donarmstrong.com
Subject: bug#250: play-sound causes "Invalid sound specification" on valid :data (on Windows)
Date: Mon, 12 Jan 2009 21:37:47 +0100	[thread overview]
Message-ID: <f7ccd24b0901121237i62129bb2vc2e8d7216b7f92d5@mail.gmail.com> (raw)
In-Reply-To: <4672E371.9050908@gmx.de>

On Fri, Jun 15, 2007 at 20:07, Michael Schierl <schierlm@gmx.de> wrote:

> - Create a valid .au file in a string (it's easier than .wav):
>
> (setq mysound (concat ".snd"       ; magic number
>                      "\0\0\0\30"  ; sound offset 0x18
>                      "\0\0\0\1"   ; sound length 1 byte
>                      "\0\0\0\2"   ; encoding 8-bit PCM
>                      "\0\0\37@"   ; sampling rate 8kHZ
>                      "\0\0\0\1"   ; 1 channel (mono)
>                      "x"))        ; some random "sound"
>

[...]

> - Playing it from there does not produce any error, but not sound either
>  (should produce a short click sound; tested with other players).

Does this produce a click sound with other players on Windows? I
tested it with Winamp and it didn't.

OTOH, if you use a sound of 4 bytes or more, it works (in Emacs, and
also Winamp). So it seems like a limitation of Windows (or some
underdocumented feature of the .au file format),


> On Sat, Jun 16, 2007 at 13:52, Eli Zaretskii <eliz@gnu.org> wrote:

> It wasn't.  I added it to PROBLEMS.

I've also added a comment to play-sound's docstring. :device is not
supported, either.

    Juanma






  parent reply	other threads:[~2009-01-12 20:37 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <f7ccd24b0901140814n28aee82mb89d0f3d48c9c5@mail.gmail.com>
2007-06-15 19:07 ` play-sound causes "Invalid sound specification" on valid :data (on Windows) Michael Schierl
2007-06-16 10:28   ` Eli Zaretskii
2007-06-16 11:38     ` Michael Schierl
2007-06-16 12:52       ` Eli Zaretskii
2009-01-12 20:37   ` Juanma Barranquero [this message]
2009-01-14 16:20   ` bug#250: marked as done (play-sound causes "Invalid sound specification" on valid :data (on Windows)) Emacs bug Tracking System

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