Best .wav format to embed in PowerPoint presentation -Sound Forge - PC

Subject:Best .wav format to embed in PowerPoint presentation Posted by: Troy_@_TLC Date:2/15/2003 3:49:04 PM Thanks for reading and offering suggestions. I have created 3 looping audio tracks in Acid Music, that are to be used in a PowerPoint presentation. Because PowerPoint will only embed .wav files I need to stick with that format. What I need to do is create "reasonably" good audio, that is as small as possible. In saving out from Acid Music as a .wav I created the default 44,100Hz - 16 bit stereo, which = 6.5 megs. I then saved is out as a 22,050Hz - 8-bit stereo (which sounded fine for presentation needs), which = 1.5 meg. I then opened the file in Sonicfoundry to see what my save options were there. There are a lot. What options/settings will create the smallest .wav file with "okay" quality? Many Thanks! Troy
Subject:RE: Best .wav format to embed in PowerPoint presentation Reply by: MJhig Date:2/15/2003 4:14:30 PM File type = Wave (Microsoft) Format = MPEG Layer-3 Attributes = experiment with this. This will give you the smallest file size you can embed in PP. MJ
Subject:RE: Best .wav format to embed in PowerPoint presentation Reply by: Rednroll Date:2/16/2003 2:42:16 PM Starting with your 6.5 meg file, you could convert to MONO which will make it 3.25 Megs. Then I would sample that down to 22Khz, like you did, and now you're at 1.6 Megs. That will give you probably the best quality for what you need. Going down from 16bit to 8bit will cause the worst side effects in audio quality and I wouldn't recommend that. You might be able to go down to something like 12bit and get OK results, and put you around the 1Meg size if you need to go any smaller than 1.6 Meg.
Subject:RE: Best .wav format to embed in PowerPoint presentation Reply by: MJhig Date:2/16/2003 7:00:21 PM Starting with PCM, 44,100 Hz, 16 Bit, Stereo = 6.5 MB, Converting to; MPEG Layer-3, 56 kBit/s, 22,050 Hz, Stereo = 256 KB MPEG Layer-3, 48 kBit/s, 22,050 Hz, Stereo = 220 KB Wav PCM, 22,050 Hz, 16 Bit, Mono = 1.58 MB Do the conversions and compare the size to quality ratio. MJ

Subject:Best .wav format to embed in PowerPoint presentation

Posted by: Troy_@_TLC

Date:2/15/2003 3:49:04 PM

Thanks for reading and offering suggestions.

I have created 3 looping audio tracks in Acid Music, that are to be used in a PowerPoint presentation. Because PowerPoint will only embed .wav files I need to stick with that format. What I need to do is create "reasonably" good audio, that is as small as possible.

In saving out from Acid Music as a .wav I created the default 44,100Hz - 16 bit stereo, which = 6.5 megs. I then saved is out as a 22,050Hz - 8-bit stereo (which sounded fine for presentation needs), which = 1.5 meg.

I then opened the file in Sonicfoundry to see what my save options were there. There are a lot. What options/settings will create the smallest .wav file with "okay" quality?

Many Thanks!
Troy

Subject:RE: Best .wav format to embed in PowerPoint presentation

Reply by: MJhig

Date:2/15/2003 4:14:30 PM

File type = Wave (Microsoft)
Format = MPEG Layer-3
Attributes = experiment with this.

This will give you the smallest file size you can embed in PP.

MJ

Subject:RE: Best .wav format to embed in PowerPoint presentation

Reply by: Rednroll

Date:2/16/2003 2:42:16 PM

Starting with your 6.5 meg file, you could convert to MONO which will make it 3.25 Megs. Then I would sample that down to 22Khz, like you did, and now you're at 1.6 Megs. That will give you probably the best quality for what you need. Going down from 16bit to 8bit will cause the worst side effects in audio quality and I wouldn't recommend that. You might be able to go down to something like 12bit and get OK results, and put you around the 1Meg size if you need to go any smaller than 1.6 Meg.

Subject:RE: Best .wav format to embed in PowerPoint presentation

Reply by: MJhig

Date:2/16/2003 7:00:21 PM

Starting with PCM, 44,100 Hz, 16 Bit, Stereo = 6.5 MB,

Converting to;

MPEG Layer-3, 56 kBit/s, 22,050 Hz, Stereo = 256 KB

MPEG Layer-3, 48 kBit/s, 22,050 Hz, Stereo = 220 KB

Wav PCM, 22,050 Hz, 16 Bit, Mono = 1.58 MB

Do the conversions and compare the size to quality ratio.

MJ