Slow playback of imported audio in Engage including WAV files

Sep 30, 2014

Victoria Aleman
By Victoria Aleman

I've done some searching to determine:

1. why Engage wasn't importing MP3 files and found that I was using the wrong function to insert the audio files into Engage and also discovered the files need to be "flash supported" mp3.

So... I went back to the original Audacity WAV file and adjusted to 44100 KHZ and then tried importing.

Now...

2. Why is the playback slow for the WAV (and the MP3) file?

What I haven't figured out is how to make even the edited WAV file "flash supported." It seems this is what I might be missing, but am not sure if it's something else.

Hoping someone can help me with this. In the meantime, I'm still searching...

Thanks!

Victoria

EDIT/UPDATE: I have since played with settings for audio. First tried setting to 16 kbps, 11025 Hz Mono and that slowed it down even more!

Changed to: mono (was recorded in stereo)

Set to: 16-bit PCM, 48000Hz

Exported to: WAV

Results: played at a normal rate, however in preview mode it sounds "tinny," like talking in a tunnel.

Any help on that?

3 Replies
Ashley Terwilliger-Pollard
over 9 years ago09/30/14 at 1:09 pm (UTC)

Hi Victoria,

I haven't seen the slow playback or tunnel behavior you describe, butStudio '13 does supporta wide range of audio file formats (AAC, AIF, AIFF, M4A, MP3, OGG, WAV, WMA), but not all codecs and bitrates are supported. You may want to try converting your audio files to16 bit 44 KHZ PCM WAVfor best results.

Victoria Aleman
over 9 years ago10/01/14 at 6:58 am (UTC)

Thank you, Ashley!

Since my original post yesterday, what I've done and has improved the audio quality:

  • Convert to 16 bit 48 Khz PCM WAV (anything different than 48 Khz and it's slow or even slower)
  • Applied Compression and Normalization

This has been a big help! Sounds much more normal.

Now I'm trying to figure out how to set the "dials" on the Spitfish de-esser to take care of that. Then I think I may have it.

I'm also working through the links you provided to see how that can help as well. Thank you for those! Very much appreciated!!!

We still have Articulate '09, not upgraded to '13 yet.

When recording in a studio environment in the future (used our Communications Div's studio to record), it seems there's probably some settings that should be configured before starting to record. How do I determine what that is? When we have our own portable set up for recording, I'll be using Audacity, but am not sure what to tell the folks in our COM division when I use their equipment. Can you advise or refer me to some resources?

Gratefully,

Victoria

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