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OpenAI charges by the minute, so speed up your audio

george.mand.is

181–190 of 234 posts

Re: OpenAI charges by the minute, so speed up your audio

#181
post #6

There was a similar trick which worked with Gemini versions prior to Gemini 2.0: they charged a flat rate of 258 tokens for an image, and it turns out you could fit more than 258 tokens of text in an image of text and use that for a discount!

Well a picture is worth a thousand tokens.

Re: OpenAI charges by the minute, so speed up your audio

#182
post #13

With transcribing a talk by Andrej, you already picked the most challenging case possible, speed-wise. His natural talking speed is already >=1.5x that of a normal human. One of the people you absolutely have to set your YouTube speed back down to 1x when listening to follow what's going on. In the idea of making more of an OpenAI minute, don't send it any silence. E.g. ffmpeg -i video-audio.m4a \ -af "silenceremove=…

I wish there was a 2.25x YouTube option for "normal" humans. I already use every shortcut, and listen at 2x 90% of the time. But Andrej I can't take faster than 1.25x

I have up to 4x (in steps of 0.05) with YouTube Premium on Android

Re: OpenAI charges by the minute, so speed up your audio

#184

Earlier quoted context omitted.

1/3 of the meeting is silence? That’s a good thing. It’s allowing people time to think over what they’re hearing, there are pauses to allow people to contribute or participate. What do you think a better percentage of silent time would be?

Good point, somehow if I think of a 30 minutes meeting, 10 minutes of silence sounds great, but seeing a 1 hour block disappear from a 3 hour recording makes me want to use that “free” hour to do something else. Well, I don’t think silence is not the real problem with a 3 hour meeting!

If people could speak continuously for an entire meeting then that meeting would be better off as an email. Meetings are for bouncing half formed ideas around and coagulating that into something greater.

There MUST be time to think

Re: OpenAI charges by the minute, so speed up your audio

#185
post #15

Earlier quoted context omitted.

Seriously this is bonkers to me. I, like many hackers, hated school because they just threw one-size-fits-all knowledge at you and here we are, paying for the privilege to have that in every facet of our lives. Reading is a pleasure. Watching a lecture or a talk and feeling the pieces fall into place is great. Having your brain work out the meaning of things is surely something that defines us as a species. We're wil…

University didn't agree with me mostly because I can't pay attention to the average lecturer. Getting bored in between words or while waiting for them to write means I absorbed very little and had to teach myself nearly everything. Audiobooks before speed tools were the worst (are they trying to speak extra slow?) But when I can speed things up comprehension is just fine.

The worst part about talks/lectures is that once you lose the thread, the rest is meaningless. If my mind wanders a bit 5 minutes in to an hour long talk, the rest of that hour is a lost cause

Re: OpenAI charges by the minute, so speed up your audio

#186

Earlier quoted context omitted.

> His natural talking speed is already >=1.5x that of a normal human. One of the people you absolutely have to set your YouTube speed back down to 1x when listening to follow what's going on. I wonder if there's a way to automatically detect how "fast" a person talks in an audio file. I know it's subjective and different people talk at different paces in an audio, but it'd be cool to kinda know when OP's trick fails…

It's a shame platforms don't generally support speeds greater than 2x. One of my "superpowers" or a curse is that I cannot stand normal speaking pace. When I watch lectures, I always go for maximum speed and that still is too slow for me. I wish platforms have included 4x but done properly (with minimal artefacts).

Recently, YT started supporting 4x playback for Premium subscribers, but only in the mobile app, not on the web.

Re: OpenAI charges by the minute, so speed up your audio

#187
post #13

With transcribing a talk by Andrej, you already picked the most challenging case possible, speed-wise. His natural talking speed is already >=1.5x that of a normal human. One of the people you absolutely have to set your YouTube speed back down to 1x when listening to follow what's going on. In the idea of making more of an OpenAI minute, don't send it any silence. E.g. ffmpeg -i video-audio.m4a \ -af "silenceremove=…

> His natural talking speed is already >=1.5x that of a normal human. One of the people you absolutely have to set your YouTube speed back down to 1x when listening to follow what's going on. I wonder if there's a way to automatically detect how "fast" a person talks in an audio file. I know it's subjective and different people talk at different paces in an audio, but it'd be cool to kinda know when OP's trick fails…

Compress it using a VBR speech codec and measure the compression ratio?

Re: OpenAI charges by the minute, so speed up your audio

#188
post #119
post #13

With transcribing a talk by Andrej, you already picked the most challenging case possible, speed-wise. His natural talking speed is already >=1.5x that of a normal human. One of the people you absolutely have to set your YouTube speed back down to 1x when listening to follow what's going on. In the idea of making more of an OpenAI minute, don't send it any silence. E.g. ffmpeg -i video-audio.m4a \ -af "silenceremove=…

Andrej's talk seemed normal to listen at 2x but I've also listened to everything at 2x for a long time. Unfortunately a byproduct of listening to everything at 2x is I've had a number of folks say they have to watch my videos at 0.75x but even when I play back my own videos it feels painfully slow unless it's 2x. For reference I've always found John Carmack's pacing perfect / natural and watchable at 2x too. A recent…

I always listen to YouTube and podcasts at 1.5. And when I meet a YouTuber/podcaster IRL, I’m always annoyed at how slow they speak.

Re: OpenAI charges by the minute, so speed up your audio

#189
post #23

Earlier quoted context omitted.

Oooh fun! I had a feeling there was more ffmpeg wizardry I could be leaning into here. I'll have to try this later—thanks for the idea!

In the meantime I realized that the apad part is nonsensical - it pads the end of the stream, not at each silence-removed cut. I wanted to get angry at o3 for proposing this, but then I had a look at the silenceremove= documentation myself: https://ffmpeg.org/ffmpeg-filters.html#silenceremove Good god. You couldn't make that any more convoluted and hard-to-grasp if you wanted to. You gotta love ffmpeg! I now think th…

if you did it in 2 passes, you could find the cut points using silence detect, use a bunch of -ss/-t/-i based on those segments, apad each segment with a -filter_complex chain the ends in concating. it would be a wonderfully gnarly command for very little benefit. but it could be done

Re: OpenAI charges by the minute, so speed up your audio

#190
Do the APIs support simultaneous voice transcription in a way that different voices are tagged? (either in text or as metadata)

If so: could you split the audiofile and process the latter half by pitch shifting, say an octave, and then merging them together to get shorter audiofile — then transcribe and join them back to a linear form, tagging removed. (You could insert some prerecorded voice to know at which point the second voice starts.). If pitch change is not enough, maybe manipulate it further by formants.

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