Looping sound as video

kveylet — Mon, 09 Nov 2020 11:56:14 GMT

Hi all,

I'm attempting to have short audio clips loop during the background of blocks during an experiment. The issue I'm running into is a gap between each instance playback, interrupting what should be a constant sound, that isn't caused by the audio itself (looping is seamless in audacity, for example, though not in quicktime player or in inquisit.

Is there any way to force seamless playback? I have 37 audio files that may need to play for as long as 3 minutes, and I would hate to make people download 37 3-minute audio files, assuming that's even within the size limit Inquisit will handle.

Minimal working example below, with links to audio download because I can't seem to upload .mp3s:
Audio 1: https://drive.google.com/file/d/1TSiDGXYH-cCfNVVJE1LDhbfxRlBcUklT/view?usp=sharing
Audio 2: https://drive.google.com/file/d/1sQSku__OcxoS9czdxLozEqFjrbWzcbiR/view?usp=sharing
[code]<item polyrhythms>
/1="a1.1-1.mp3"
/2="a1.16-15.mp3"
</item>

<video sounds>
/ items = item.polyrhythms
/ select = noreplace
/ loop = true
/ erase = false
</video>

<item instructions>
/1 = "These are simple instructions"
/2 = "These are more simple instructions"
</item>

<text instructions>
/ items = instructions
/ select = sequence
/ size = (85%, 60%)
/ txcolor = black
/ hjustify = left
/ resetinterval = 0
/ position = (50%, 50%)
/ hjustify = left
</text>

<trial instructions>
/ stimulustimes = [0=instructions]
/ validresponse = (" ")
/ recorddata = false
</trial>

<block task>
/ bgstim = (sounds)
/ trials = [
1=instructions; ]
</block>>[/code]

RE: Looping sound as video

Dave — Mon, 09 Nov 2020 11:56:14 GMT

+x[quote]

[b]kveylet - 11/8/2020[/b]
Hi all,

I'm attempting to have short audio clips loop during the background of blocks during an experiment. The issue I'm running into is a gap between each instance playback, interrupting what should be a constant sound, that isn't caused by the audio itself (looping is seamless in audacity, for example, though not in quicktime player or in inquisit.

Is there any way to force seamless playback? I have 37 audio files that may need to play for as long as 3 minutes, and I would hate to make people download 37 3-minute audio files, assuming that's even within the size limit Inquisit will handle.

Minimal working example below, with links to audio download because I can't seem to upload .mp3s:
Audio 1: https://drive.google.com/file/d/1TSiDGXYH-cCfNVVJE1LDhbfxRlBcUklT/view?usp=sharing
Audio 2: https://drive.google.com/file/d/1sQSku__OcxoS9czdxLozEqFjrbWzcbiR/view?usp=sharing
[code]<item polyrhythms>
/1="a1.1-1.mp3"
/2="a1.16-15.mp3"
</item>

<video sounds>
/ items = item.polyrhythms
/ select = noreplace
/ loop = true
/ erase = false
</video>

<item instructions>
/1 = "These are simple instructions"
/2 = "These are more simple instructions"
</item>

<text instructions>
/ items = instructions
/ select = sequence
/ size = (85%, 60%)
/ txcolor = black
/ hjustify = left
/ resetinterval = 0
/ position = (50%, 50%)
/ hjustify = left
</text>

<trial instructions>
/ stimulustimes = [0=instructions]
/ validresponse = (" ")
/ recorddata = false
</trial>

<block task>
/ bgstim = (sounds)
/ trials = [
1=instructions; ]
</block>>[/code]
[/quote]

> Is there any way to force seamless playback

No. Creating 3-minute long already looped audio files would be the way to go.

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Looping sound as video

RE: Looping sound as video