China DOS Union

mrdeadman: How did you test it? Here, using wplay /? or wplay/? can both normally display the help information! Note that it's a half-width "?" instead of a full-width "？". But adding /h is also not bad.
Rushon: Regarding the noise problem of WAV below 22K, I tried again and found that sometimes it exists and sometimes it doesn't. That is, sometimes there is noise when running WPLAY, and sometimes there is no noise when running WPLAY again after a while. When I play some 44K files and then play 22K files, there is often no noise, and even after a warm boot of the system, there is no noise. I'm not quite sure why. I think maybe it's related to the initialization of the sound card.

The following is a quote from Wengier's post on 2004-9-18 23:08:12:

mrdeadman: How did you test it? Here on my end, using wplay /? or wplay/? can both normally display the help information! Note that it's a half-width "?" instead of a full-width "？". But adding /h is also not bad.
Rushon: Regarding the noise problem of WAVs below 22K, I tried again and found that sometimes there is noise and sometimes there isn't. That is, sometimes there is noise when running WPLAY, and after a while, when running WPLAY again, there may be no noise. When I play some 44K files and then play 22K files, there is often no noise, and even after a warm boot of the system, there is no noise. I'm not very clear about how this is回事. I think maybe it's related to the initialization of the sound card.

It is suggested to still use a dedicated resampling library....

Just now I made another update, upgrading WPLAY to version 1.16. The details are as follows:
1: Re-added the /? parameter, which is the same as the /h or /H parameter to display help information. And continued to update the help information. (Note: In the help, just display WPLAY /L, WPLAY /H, etc. for the options. No program's help information displays both uppercase and lowercase characters at the same time (such as /l and /L, /h and /H, etc.), even if both uppercase and lowercase characters are acceptable);
2: Officially added a simple Playlist function under Rushon's suggestion! For example: WPLAY SONG.LST can play all WAV files inside. Note that the first line of the playlist file must be LIST, and start entering WAV file names from the second line. For example:
LIST
SONG1.WAV
SONG2.WAV
..
You can refer to the playlist example file SONG.LST inside. WPLAY will play all WAV files inside in sequence;
3: Officially renamed the source files WSS.C and WSS.H to WPLAY.C and WPLAY.H.
And some other minor modifications and updates.
Both the program and the source code can be downloaded here: Open attachment

WPLAY has been updated again, upgraded to version 1.17. The main update contents include:
1: Fixed the possible problems in version 1.16 when playing non-list files;
2: Restored the playicon function, so that WPLAY can continuously switch the icon display during playback, enhancing the effect (Ruston seemed to forget this function and removed it?);
3: This is the most important update. Added loop control function. Users can press the L key at any time during playback to control whether to loop the song, and the default value is "Yes";
4: Allows continuing to play the next song specified in the playlist in the case of some wrong song entries in the playlist (such as not finding the file, etc.).
And some other minor updates, such as some enhancements to the interface display, etc.
The updated version 1.17 can be downloaded here:
Open attachment
P.S. Regarding the decoding part of the program, it is still up to Rushon to update it, after all, I am not very familiar with this part.

Continuing the update to version 1.18, the main update contents are as follows:

1: When playing files using a list, the ENTER key can be used to switch to the next file;

2: Continue to clean up/delete some previous useless codes.

The updated version 1.18 can be downloaded here:
Open attachment
Another note: When using the list playback function, it is found that after completely playing a 44K file with WPLAY list, when playing a 22K file basically there will be no noise, while if the 44K file is not completely played before playing the 22K file, there may be noise (but sometimes not).
Attachment: Just now it was reuploaded again, this time with the CWSDPMI.EXE driver program.

It seems that the moderator has done a lot of work. Salute~ Let's work together to make it more perfect

Okay! Let's all continue to work hard together! Welcome everyone (as long as there is a motherboard-integrated AC97 sound card) to test and raise questions and suggestions so that we can continue to improve it. The decoding and other parts will be modified by Rushon, and other parts can be improved by us together. Other friends can also join. Please put forward various questions or development suggestions so that it can be continuously updated, which will be beneficial to everyone and the development of the entire DOS.

Update again, version 1.20 is released. Main updates: re-support Sound Blaster or compatible sound card playback, so that WPLAY supports various ordinary SB sound cards and various AC97 sound cards! But this time it's not like before where users have to make a choice, but full automatic detection. First detect Sound Blaster sound card, then detect AC97 sound card. If the user has both Sound Blaster and AC97 dual sound cards and wants to play with AC97 sound card, just don't set the BLASTER value or set an incorrect BLASTER value.

Here is the download for the latest WPLAY 1.20 version:
Open attachment
Note: Since this program supports various AC97 and Sound Blaster sound cards, more people are welcome to join the testing and put forward suggestions! If no one puts forward any improvement suggestions, then I may no longer update it.

Thanks to the moderator's improvement. My progress in MP3 decoding work here is still relatively smooth. I hope to come out with a version on 10.1 and let's work together!

Okay! Additionally, I wonder if it can support some other formats of WAV? Now it seems only PCM format WAV is supported. For example, currently WPlay can't play the following WAV file:
Open attachment
Of course, MP3 is naturally of higher priority, after all, adding MP3 support is more practical.

I tried the sb16 PnP sound card here. The 44khz PCM can play normally, but there is noise at 22khz

Okay! Also, I wonder if it can support some other formats of WAV? Now it seems to only support PCM format WAV. For example, the following WAV file cannot be played by WPlay at present:
========================There are several formats of WAV files, and the program filters out other formats when analyzing the file header. If you are interested, you can try to add support for these formats

Here are some materials about the principle of MS ADPCM and the difference from PCM. You can have a look. I don't know how useful it is: http://support.microsoft.com:80/support/kb/articles/Q89/8/79.asp&NoWebContent=1

The following is a quote from Wengier's post on 2004-9-22 21:01:56:

Here are some materials about the principle of MS ADPCM and the differences from PCM. You can take a look. I don't know how useful it is:
http://support.microsoft.com:80/support/kb/articles/Q89/8/79.asp&NoWebContent=1

There are also some MP3s with wave file headers.... Identifying these is also necessary....

Wengier:
Hello, I've long heard of your great name. I've learned a lot here today. Thank you very much for your hard work for DOS enthusiasts.