Fleet operators should only use DEF that meets the standards. Containers and dispensers should be properly labeled to indicate certification. Additionally, operators must follow DEF storage and handling best practices to avoid Contamination after purchase. Proper handling keeps the DEF within the purity specifications required for effective NOx reduction.

So, is diesel exhaust fluid flammable? The bottom line is that DEF itself is not flammable, but improper use or storage can lead to the formation of flammable ammonia. Follow the manufacturer’s recommendations for using DEF in your vehicle. This ensures you get DEF’s emissions reduction benefits while avoiding any potential hazards. Have more questions about DEF? Don’t hesitate to contact us at Azure Chemical.

It’s fast. In our tests, GoTranscript AI took 6 minutes to transcribe our entire batch of recordings —less than one minute per minute of audio, which was faster than Reduct and Rev AI, though slower than Vook.ai, OpenAI Whisper, and Descript. But GoTranscript’s human transcripts came back between 58 minutes and 2.5 hours after we placed our order—significantly faster than the anticipated one-day turnaround, similar to Rev’s human transcription, and faster than Transcription Panda (which took 6 hours 30 minutes for similar transcripts with their one-day turnaround service).

Similarly, Apple Intelligence—available starting September 16 in iOS 18 and macOS Sequoia, on iPhone 15 Pro and iPhone 16 and newer, and iPad or Macs with M1 CPUs or newer—generates real-time transcripts from audio recordings in Notes with AI summaries. We wouldn’t be surprised to see direct audio file transcription for both platforms in a future update.

Look for unusual coloring, odor, viscosity, cloudiness, or sediment, which may indicate contaminated DEF fluid. Test the urea concentration if Contamination is suspected.

Automated transcription services can transcribe in nearly real time. Human transcription services should take no more than one business day—and ideally less.

Spilled DEF on hot engine components can produce harmful nitrogen oxide fumes and ammonia vapors. Contamination with diesel fuel, hydraulic fluid, or other combustible substances can also increase DEF’s flammability. Proper storage, handling, and refilling procedures should be followed to minimize fire hazards.

It’s designed to upload audio and get it transcribed as quickly as possible. You can order transcription in around five clicks, and downloading a completed transcript takes a single click from the notification email. When ordering, you can choose AI or human transcription, then upload an audio file in nearly any popular format (including .mp3 and Apple Voice Recorder’s .m4a format, along with .webm, .ovg, and video files including .mp4 and .wmv)—or paste a link to a Dropbox or Google Drive file, or YouTube or Vimeo video.

We noted where transcription services cleaned up text, removing filler words—such as “like” or “you know”—and did not count that, or when they broke up less-common compound words like “globetrotting” into “globe trotting,” or transcribing “the” as “a” against accuracy. And when the wrong word was used, we counted that against an app’s accuracy score, using that along with pricing, features, and speed to choose the best transcription service.

Vook.ai is a sparse transcription service, built using custom transcription models based on OpenAI’s Whisper. But it delivers highly accurate transcriptions in minutes.

Trint is designed around transcribing large volumes of audio every month. It offers unlimited transcription starting at $100 per month, in a collaborative editor complete with full-text search, sharing, and comments. That is helpful for transcribing large volumes of audio for subtitles, with quick AI transcription that you can clean up manually in the app. It includes a full-featured mobile app so that you can get text transcribed on the go, and it supports exports in a wide variety of subtitles. Unfortunately, it was just 95% accurate in our tests, far off our picks. It also made errors that changed the meaning, like transcribing “steady” as “study,” “nebulously” as “nebulous Lee,” “That’s always gonna” as “I was always going to,” “right now” as “if I know,” and more—not close enough to publish without a second check.

At a quarter of the cost of our top pick, this service offers marginally less accurate AI transcripts that arrive in less than half the time. But it has fewer features and can struggle with crosstalk.

Proper handling and storage practices will help maintain optimum DEF quality and performance over time. Check your owner’s manual for additional DEF storage instructions for your vehicle.

We compared each service’s interface and listed core features, including supported audio formats and collaboration options. And we timed how long each service took to provide transcripts and respond to support queries, and noted the total cost per minute.

This global standard specifies DEF’s required properties and test methods. It sets limits for DEF concentration, alkalinity, impurities, density, freezing point, and other parameters. ISO 22241 aims to ensure the DEF is pure and stable.

iOS 18, which rolls out to iPhones this fall, is jam-packed with AI-powered features like generative emoji, photo cleanup tools, and ChatGPT integration.

At a quarter of the cost of our top pick, this service offers marginally less accurate AI transcripts that arrive in less than half the time. But it has fewer features and can struggle with crosstalk.

Transcription is now a commodity—a default feature in the work-centered apps so many of us use on a daily basis. Zoom, Google Meet, and Microsoft Teams transcribe meetings. Slack adds transcripts to audio shared in chat. Even YouTube auto-captions videos.

The results are only slightly less accurate than what you’d get from our top pick, but enough that you’ll need to more closely edit transcriptions before publishing them. It also offers no collaboration features, requiring workarounds to handle transcripts as a team.

Dieselflash point

While diesel exhaust fluid is generally considered safe when handled properly, there are some risks and dangers to be aware of.

Common symptoms of DEF ingestion include nausea, vomiting, diarrhea, low blood pressure, headache, abdominal pain, respiratory issues, and metabolic disturbances. The alkaline nature of DEF can damage the tissues of the esophagus and stomach. Seek emergency medical assistance right away in case of accidental ingestion.

Unlike our top pick, there are no sharing or collaboration features, though Vook.ai does have an email export option to send a transcript directly to a colleague. Similar to GoTranscript, though, Vook.ai doesn’t offer universal search across all of your transcripts (something offered by Alice, Rev, and Descript). The only way to organize transcripts is by their read or unread status, or with tags.

By converting the harmful NOx emissions into inert nitrogen gas and water vapor, DEF dramatically reduces the NOx pollution from diesel vehicles and equipment. Most modern diesel engines are designed to run with DEF, allowing them to meet even the most stringent emissions standards.

DEF begins to freeze at approximately -11°C (12°F). However, freezing does not affect its quality, and upon thawing, it can be used without any issue.

Today’s smartphones already offer basic transcription features, typically for voicemail or as accessibility features. Google Recorder provides high-quality real-time dictation, and Google’s Gemini can create a text summary of recorded audio on Pixel 8 and 9 series phones.

Refilling your vehicle’s diesel exhaust fluid (DEF) tank requires using the correct nozzles, tanks, and gauges to avoid Contamination.

For turnarounds faster than one day, GoTranscript is more expensive than our previous top pick, Rev. At $2.75 per minute versus Rev’s $1.99 per minute for the same promised turnaround time, you will pay extra for frequent timestamps or less-clear audio. But GoTranscript’s accuracy makes it the service to choose when you need the cleanest transcriptions—and actual turnaround times were faster than promised, as well.

Wirecutter is the product recommendation service from The New York Times. Our journalists combine independent research with (occasionally) over-the-top testing so you can make quick and confident buying decisions. Whether it’s finding great products or discovering helpful advice, we’ll help you get it right (the first time).

It uses OpenAI’s Whisper to generate fast, accurate transcriptions. What makes Vook.ai one of the best affordable transcription services is that, at its core, it’s an easy-to-use take on OpenAI Whisper. (According to the development team, it’s powered by “added layers upon OpenAI’s Whisper algorithm, that we run on serverless GPUs.”) The results were slightly more accurate than default Whisper models in our tests.

It was 98.4% accurate in our tests, but it didn’t handle speech impediments or crosstalk well—especially compared with our top pick. It also didn’t clean up filler speech or identify speakers by default, though it does include AI features to add those after the core transcription has been completed.

Diesel flammablecategory

You can also choose your timeframe: Six- to 12-hour transcription turnaround starts at $2.75 per minute, with one-day ($1.43 per minute), three-day ($1.21 per minute), and five-day (99¢ per minute) options also available. In our testing, we used one-day turnaround with default options, plus timestamps for two of the clips. This worked well, even with accented, noisy audio.

DEF can also irritate the eyes if splashed or sprayed directly, causing redness, watering, and stinging. Proper eye protection, like safety glasses, is recommended when working with DEF to prevent eye exposure. Immediately rinse eyes with cool water if DEF makes contact.

Descript is worth considering for its interface alone if you’re working with a team. And if you’re building transcripts for a podcast, it could be an all-in-one tool to record, edit, and transcribe podcasts as a team.

GoTranscript provides transcripts with over 99% accuracy from human transcribers in less than a day, at more affordable rates than many human-powered alternatives. Its custom AI transcription is also the most accurate automated transcription service we tested, as well.

GoTranscript’s editor is basic, but the service includes a number of features that can speed up your work. You can get a free AI transcript preview of the first two minutes of your audio, which allows you to decide if the quality is sufficient before paying—and if it’s not, you can upgrade to a human transcription. You’ll get your transcript emailed as a Word document, so you can use it without having to re-open the site. And it’s HIPAA compliant, so it’s ready for health care use.

Between the diesel particle filter and the selective catalytic reduction (SCR) catalyst, DEF is injected into the heated exhaust gasses.

For anyone with disabilities or mobility challenges, smart devices can be profoundly empowering and can enable more independent living.

When refilled correctly and used as intended, DEF is safe for diesel engines and the environment. Check the DEF gauge regularly, refill it promptly when low, and use a reputable brand that meets API or ISO quality standards. With responsible use, DEF helps diesel vehicles meet emissions regulations.

Reduct is an online video editing app that transcribes audio, too—a video take on what Descript does for podcast editing. Transcripts show up in real time as the AI completes them, with a quick first-pass (taking one minute per minute of audio) followed minutes later by a more accurate final transcription (around three minutes per minute of audio in our tests, which is slow for AI transcription). It missed an entire phrase on the end of one clip and added extraneous phrases to the end of two other clips. Reduct’s nicer editor and collaboration features could make it worth considering if you’re primarily transcribing videos then publishing the copy as captions, as long as you edit transcriptions before publication.

No, due to its high water content and chemical properties, DEF does not ignite or cause combustion when in contact with hot engine components.

Vook.ai supports files up to three hours long (or 2 GB), versus GoTranscript’s larger 4 GB upload limit. Longer recordings will need to be split into shorter clips for transcription, or require an Ultra plan, which costs roughly $55 per month.

The API’s guidelines complement ISO 22241 with additional DEF testing procedures and storage requirements. They help maintain DEF quality throughout transportation, handling, and storage.

Of other inaccuracies, “vlog” was mistaken as “blog,” “C#” was written as “CShark,” and “AI” as “AGI.” A single word—“Caucasus”—was marked as “[unintelligible]” rather than being guessed, which is what many other services would do.

It’s easy to access transcriptions, but editing and collaboration features are basic. Once transcription is completed, you’ll get an email with a link to a Word Document. Since you don’t need to be logged in to access the doc, you can forward a transcript to a colleague without needing to share account access.

The precise ratios and components in DEF can vary slightly between manufacturers. But urea and deionized water remain the two primary constituents.

Diesel exhaust fluid (DEF) is an important liquid used to lower emissions in diesel engines. While it contains urea and deionized water, DEF itself is not flammable.

Microsoft’s AI assistant, Copilot, is now built into nearly every new Windows laptop coming out this year. Here’s what you should know about how to use Copilot.

It takes, on average, four minutes to transcribe one minute of audio by hand, according to Rev, other transcription services, and anecdotes shared by transcription professionals. That time commitment paired with the training and experience needed to transcribe accurately makes human-transcribed audio typically cost $1 to $3 per minute of audio. Human transcription gives you the highest-quality results, with experience-honed accuracy and the human intuition required to guess the correct homonym or a less clearly pronounced name.

The service gives you a preview transcription of the first couple of minutes of your recording for free, to check its quality before paying for a full transcription. And it can import nearly any audio or video format, as well as export transcripts in a wide range of formats, to slot easily into your existing production workflows.

Collaboration is similarly basic: You can copy a sharing link to the transcription editor, where colleagues can edit the text but not actually save the edits. Or, you can add transcripts to a shared workspace for team access with the same basic editor features. You can filter through transcripts by date and order but cannot search through all recordings together.

Candieselcatch fire immediately

Apple Voice Control and Nuance Dragon Home 15 are the best dictation tools we’ve tested, though both struggle with some accents and speech impediments.

GoTranscript uses AI to enhance its human transcription, and that shows in the year-over-year improvement in its transcription quality. The web app is fairly basic, with simple sharing functions, plus a text editor with audio playback that highlights words as they’re spoken.

Its human transcriptions were over 99% accurate. The words the human transcribers missed were more likely to be filler words—for example, writing “while” instead of “and while”—rather than entirely incorrect words. Names that were frequently misspelled by other transcription services (including “Sagen Maddalena,” “Will Shaner,” and “Joel Embiid”) were transcribed accurately. Transcripts were close enough to perfect that we had to look closely for differences.

Apple Voice Control and Nuance Dragon Home 15 are the best dictation tools we’ve tested, though both struggle with some accents and speech impediments.

Leave no headspace in partially used containers, and keep caps tightly sealed to avoid evaporation or spillage of the DEF.

For this guide, we considered how the field has changed since we wrote Wirecutter’s original transcription services guides in 2018. Then we read through personal recommendations from New York Times reporters, along with roundups from The Verge and PC Mag. We also took into account recommendations from NYU Libraries, the University of Michigan Library, and Harvard University, among others, as well as forums and social media.

However, degraded DEF may still be usable past its expiration date, although the efficiency may decrease over time. Always check the DEF quality if it is older than 12 months.

At a quarter of the cost of our top pick, this service offers marginally less accurate AI transcripts that arrive in less than half the time. But it has fewer features and can struggle with crosstalk.

In the same way, OpenAI’s Whisper transcription model is available in code today, or via an API call on OpenAI’s servers. While ChatGPT today only includes dictation used to ask a question, it would seem to be a natural progression to offer audio file transcription directly in ChatGPT’s interface—or to see similar offerings from other LLM chats such as Claude in the near future.

The DEF sprayed into the exhaust reacts with the SCR catalyst to trigger chemical reactions that convert the NOx into harmless nitrogen gas (N2) and water vapor (H2O). Specifically, the DEF breaks down into ammonia (NH3), which reacts with the NOx on the SCR catalyst surface to reduce the NOx into N2 and H2O.

Scribie is the most affordable human-powered transcription service we tested, at just 80¢ per minute. It first uses AI to transcribe your audio, then human editors clean up the copy. Scribie was as accurate as Happy Scribe, though with a few more spelling differences than other transcription apps. (These included things like using “okay” instead of “ok” or “all together” instead of “altogether.”) It also produced near misses like “study” instead of “steady.” It offers fewer export options, with only Word, PDF, and text formats supported, with no subtitle or caption formats included. It was very good at handling crosstalk and repetitive or filler words, though.

AI has raised the bar for transcription—a notion borne out by the fact that even human transcription is, on average, more accurate today than it was a half-decade ago. Steve Jobs liked to call computers “a bicycle for our minds,” a metaphor I couldn’t shake while testing these services. Today’s human transcription services often use AI for a first-pass before humans clean up the copy, showing one way that humans and AI can work best together.

Transcripts show up in your account moments after they’re ordered. The service includes a basic editor, with rich text editing features including bold and italic font options. You can toggle timestamps and speaker names, copy text, or export transcripts in Word, PDF, Markdown, or .st subtitle format.

I’ve been testing and writing about software professionally since 2010, and I have used both human and AI-powered transcription services for interviews and meetings throughout my career. I extensively use dictation for mobile typing, across multiple languages, and regularly use transcripts to build note summaries after meetings.

It’s geeky: You can run it in Terminal on Macs and Linux PCs, or Command Prompt on Windows. It’ll run slowly on traditional Intel and AMD processors, but it can deliver transcripts as fast as 1 minute per minute of audio on modern ARM CPUs, including Apple’s M1 and newer, or on CUDA-compatible Nvidia GPUs. Whisper’s Large v2 model was the most accurate in our tests; Small was faster, making it more usable on Intel machines, but it was less accurate, while Large v3 seemed to try too hard and overcorrected at times.

In our tests, we were able to get two minutes of audio transcribed in a minute or less, with greater than 98% accuracy. The cost? Around 5¢ per minute.

If you want free, locally processed AI transcripts: OpenAI Whisper—the engine behind Vook.ai and likely other commercial transcription tools—is an open-source, MIT-licensed, Python-powered transcription model that you can run for free on any computer. Its Large model was 98.7% accurate in our tests, while its faster Small model was 97.7% accurate.

Is dieselmoreflammablethan gasoline

Guidelines for DEF quality have been set by the American Petroleum Institute and the International Organization for Standardization (ISO):

The deionized water in DEF, making up approximately 32.5% of the fluid, dissolves the urea and allows it to be sprayed into the exhaust stream. Deionized water has had ions like calcium and chlorine removed to increase purity.

GoTranscript’s site mentions that it “uses AI as a tool to enhance the efficiency of human transcriptionists,” which may be part of the reason its human transcripts are so accurate and delivered so fast. To improve accuracy, you can email the GoTranscript team to add industry-specific flags to your account for medical, technical, and legal terms, or custom words to add to your account’s dictionary. It would be nice to have an in-app dictionary feature to add custom words on your own, which is something offered by many competing services, including Scribie and Rev.

With the transcripts in hand, we then compared each transcript against our original, hand-transcribed copy to compare for readability and accuracy. Our primary criteria is accuracy in transcribing spoken words; that’s the sole feature worth paying for.

Properly stored DEF has a long enough shelf life for consumer vehicle usage. But fleets with large DEF supplies should follow first-in, first-out usage and replace any batches over 12 months old.

Flash point ofdieselin Celsius

Its transcripts are 98.7% accurate on average. In our tests, Vook.ai was second only to GoTranscript in AI transcription accuracy. The results were good enough to use with only light edits.

Diesel exhaust fluid can cause mild skin irritation with prolonged exposure due to its slightly alkaline chemical properties. The most common symptoms are redness, itching, and burning or stinging sensations on exposed skin. DEF is not likely to cause serious burns, but sensitive skin may react more strongly.

GoTranscript cleans up transcriptions for readability, which generally is good, though in our experience this also sometimes affected quality. Filler words including “you know,” “like,” and “kind of” were removed, and a misspoken “there’s a qualified” was turned into the more accurate “there’s a qualifier.” And you’ll have to watch out for fillers that are also modifiers, such as an instance where “kind of” was removed, which mildly altered the meaning of a sentence.

Diesel exhaust fluid (DEF) works by chemically reducing the oxides of nitrogen (NOx) emitted by diesel engines into nitrogen and water vapor.

Proper handling and storage of DEF are still important. Any solution comprised of chemicals can become hazardous depending on how it is used. Follow guidelines on using appropriate containers, avoiding excess heat or cold, and preventing Contamination. But rest assured that DEF is designed to be an inherently stable, non-flammable formula. Let’s learn more in this article by Azure Chemical.

Keep the DEF storage tank and dispensing systems clean. Even small amounts of Contamination from dirt, water, engine coolant, or other chemicals can degrade DEF quality. Use dedicated DEF containers, funnels, etc.

Diesel exhaust fluid can react with other substances and increase the risk of a fire even if it is not combustible. Both OSHA and the NFPA classify DEF as a “combustible liquid”.

That has improved their accuracy but can lead to surprising mistakes. For example, in our testing “as large as” was transcribed by multiple AI services as “F/f.” Even more strangely, the decimal “1.82%” was transcribed as “1.8199999999999998%” by one service. Yet overall, today’s AI transcriptions are 96% accurate on average. Close, but still noticeably incorrect at times.

Vook.ai is also far easier to use than OpenAI Whisper, which requires running Python code in Terminal on Macs and Linux or Command Prompt on Windows, or using a third-party wrapper for either Mac or PC—something less technically inclined users may struggle to set up.

To maintain optimal quality, DEF recommends a usage cycle of 12 months from the manufacture date. Most DEF containers have an expiration or best-by date stamped on them, indicating the end of the suggested shelf life.

Following the manufacturer guidelines for storage and avoiding Contamination optimizes the shelf life of diesel exhaust fluid.

DEF also contains small amounts of additives and stabilizers. These help to prevent the growth of bacteria and algae in the DEF, ensure proper freezing and thawing, and prevent DEF from degrading over time. Common additives include inorganic salts, ammonia, and amine compounds.

If you want free, good enough transcripts: Check your favorite work applications to see if they include transcription features. Microsoft Word includes automated transcription with Office 365, Slack adds a transcript to any audio shared in chat, and most video call apps including Google Meet and Zoom offer automated transcripts.

Is diesel exhaust fluid flammable? DEF manufacturers and industry groups emphasize that DEF is non-flammable and non-combustible. It will not ignite or burn. DEF containers even have warning labels stating that the solution is non-flammable.

Amazon’s line of Echo smart speakers are the best option for bringing Alexa into your home. We’ve got picks for nearly any setup and situation.

Happy Scribe offers both human and AI transcription, and the accuracy of its human transcription came in just under GoTranscript’s AI accuracy. It handled crosstalk well, and text was highly readable, but it was often altered from the spoken record. “Did they set a timeline?” was changed to “What was the timeline that they set?” That’s close, but the meaning was changed. Its transcript editor app looks more modern than our top pick’s and includes collaboration features it doesn’t (including comments). However, multiple people cannot edit a transcript at the same time (as you could in Google Docs, say).

A couple of names were misspelled—slightly more than with GoTranscript; “Roe” came back as “Rowe,” “Bhupinder” as “Bupinda.” It didn’t handle crosstalk as well as our top pick and missed a few smaller words including “did,” “they,” and “yeah.” Percent was written out as a word, instead of a percent symbol.

AI transcripts were worse at names but still 98.9% accurate. That’s better than all but one of the human-powered transcription services we tested, at a fraction of the time and price.

Although its mobile app is only usable to record conversations to then be submitted to GoTranscript, and its web editor includes fewer features than some competitors, its accuracy and speed are the best we’ve found.

DEF freezes at about -11°C, or 12°F. DEF can deteriorate more quickly in high temperatures above 86°F (30°C), so keep it in a cool, dry place with a temperature between 23 and 77°F (-5 and 25°C).

For human transcription, you can then choose between clean verbatim (without filler words such as “um” and “you know”) or full verbatim for an additional 25¢ per minute. Additional paid add-ons include timestamps, support for three or more speakers, and support for low-quality audio.

Is dieselexplosive

DEF is an aqueous urea solution comprised of 67.5% deionized water and 32.5% high-purity urea. This mixture does not support combustion or have a flash point that would make it explosive.

Alternatively, you can use it in third-party wrappers, including MacWhisper for Mac, Aiko for iOS, and Speech Transcribe for Windows PCs with CUDA-compatible Nvidia GPUs. Or, you could use hosted versions of Whisper via automation tools like Zapier or Make, or build it into in-house apps with OpenAI’s Whisper API.

GoTranscript is safe to use with sensitive personal information. The service uses in-house–developed transcription software, promises limited access to personally identifiable information to employees and transcribers who need access to data to perform specific tasks, is HIPAA-compliant, and encrypts data while stored and in transit. Audio is stored for seven days after transcription is complete, while text transcripts are stored in your account until you delete them. If needed, you can also request the GoTranscript team to sign an NDA for an additional layer of privacy around your audio and transcripts.

DEF deteriorates more quickly in hot temperatures exceeding 86°F over an extended period of time. The efficiency of the DEF is decreased as the urea concentration starts to drop.

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GoTranscript is the best transcription service for highly accurate human transcription, and it also delivers better-than-average AI-powered transcripts. It’s worth paying for when transcription accuracy is crucial.

Alice is a basic AI transcription service built around automation. Finished transcripts are emailed to you and any colleagues you add. Alternatively, the service can save transcripts to Dropbox, Google Drive, or OneDrive; share them on Slack; add them to Trello tasks; or kick off Zapier automations from completed transcripts. It whiffed on a number of names, transcribing “Cameroon” as “Kenmore,” “bobcats” as “bug cats,” and “bag” as “Baghdad,” among other mistakes that we didn’t see in other transcripts. But its built-in search was better than that of competitors, surfacing results across every transcript in your account.

The key factors that affect DEF’s shelf life and quality are exposure to heat and Contamination. To avoid contamination, DEF should be stored in a cool, dry place from 12°F to 86°F and kept sealed in its original container.

It doesn’t include speaker tracking or timestamps, which may also make it less attractive for some use cases. But it’s the transcription model to beat today, and we’d be remiss not to mention it.

Otter is built around transcribing meetings, with Zoom, Microsoft Teams, and Google Meet integrations. Its best use case is to surface data from calls, with automated AI summaries of transcripts, a chat bot that you can ask questions about a call, and graphs tracking who talked the most. It’s less useful for working with transcripts, though, with a limited editor that only lets you copy a single paragraph at a time. It offers few export options and is also somewhat less accurate than the competition.

Buying hours of transcription credit at a time requires slightly more upfront investment than GoTranscript, which bills directly per minute of audio transcribed, and the subscription options add to the complexity. On average, though, Vook.ai works out to around 5¢ per minute of audio transcribed, one fourth of GoTranscript AI’s 20¢ per minute cost.

If you need to work on transcriptions as a team: Descript (free for 1 hour of transcripts per month; from $19/month for 10 hours of transcripts) was designed as a tool for editing podcasts and videos, but it’s also a great AI-powered transcription service with a modern, collaborative editor reminiscent of collaborative notes and the to-do list app Notion.

Beyond that, the transcripts were clean and readable, and the AI handled crosstalk, repeated words, and other verbal issues well. The results are close enough to perfect that, for clear audio without uncommon words, you might be able to use them without any edits.

But when accurate transcripts are crucial enough to your work that you would otherwise spend hours painstakingly transcribing or editing automated transcripts, paying for human transcription or higher-quality automated transcripts is the best choice. Paid transcription tools also include features to share transcripts, edit them manually, and export the text in caption and subtitle formats. All of these are worth paying for when transcripts are a core part of your work.

Anyone who records large amounts of spoken audio and video—for interviews, podcasts, videos, meetings, dictated notes, and more—can benefit from a transcription service.

How longisspilleddiesel flammable

By mandating DEF testing and certification, these standards verify that the DEF sold at refueling stations and in containers meets composition and purity requirements. Contaminated or degraded DEF can corrode SCR systems and reduce NOx conversion, so compliance with ISO 22241 and API guidelines is critical.

None offer the accuracy of our top picks, but all offer passable transcripts that would be good enough for a quick search through meeting notes or to save time in looking up a quote.

Transcription Panda is a human-powered transcription service with the most accurate transcription we tested—but it costs $1 more per minute than GoTranscript with one-day turnaround and takes nearly six times as long to transcribe the same audio. It’s also very basic: You just upload audio and get a Word document emailed back to you. There’s no sharing, editing, or playback features. The few errors the service did make were more likely to change the meaning of a sentence than those from GoTranscript’s human transcripts, too; “instance” was transcribed as “insurance,” for example.

We’ve updated this guide to correct an error. A previous version of this guide stated that Vook’s time blocks were available in two-hour increments, but they can be customized to any amount of time.

And the transcriptions are good. Surprisingly so. In 2018, Wirecutter found the best AI transcription tools to be 73% accurate. Today, even the least accurate AI transcription is 94% accurate—and, surprisingly, the best AI transcription services, including OpenAI’s free Whisper transcription engine, are somewhat more accurate than the least-precise human-powered transcriptions.

However, DEF can decompose into ammonia, which is flammable at high temperatures. Proper handling and storage of DEF is, therefore, essential. Please keep it away from open flames or other ignition sources—store DEF in a cool, well-ventilated area out of direct sunlight.

For AI transcripts, GoTranscript doesn’t prompt you to add any additional services, as AI transcriptions list speakers by default but don’t offer timestamps. As a nice bonus, you can click a “Check AI Accuracy” button when ordering an AI transcript to get a quick preview of the first two minutes of your audio’s text. If the results aren’t accurate enough, you can upgrade to human transcription.

Transcripts make searching through recordings as easy as searching any other document, simplifying finding specific quotes and action items from a meeting or jumping to the correct timestamp in audio. They help journalists, legal and medical professionals, and others who rely on interviews and spoken conversations, speeding up their work and increasing note accuracy. And they make podcasts and videos accessible to a wider audience. As a side benefit, they help listeners search through shows and even aid search engines in indexing your content.

It missed one name (“Sagen” was transcribed as “Sajan”) and used British spelling for “catalogue,” with no option to choose between US and British spelling. It also had a few issues with our final test clip: The pangram was written without spaces, “AI” was written as “AVI,” and “streaming” had become “steaming.” Perhaps most surprisingly, one clip had a phantom “Thank you” added to the end.

Your first 30 minutes of transcription are free, then you can purchase credit in two-, five-, or 10-hour increments, or customized blocks of time. Another option is to purchase a subscription starting at around $11 per month for five hours of transcription, with transcription billed per minute and charged in euros. Leftover credit can be used later.

Getting transcripts is easy and quick. Vook.ai transcribes audio three times as fast as GoTranscript’s AI service. You simply upload recordings from your computer, choose to optionally identify speakers (free) or translate the transcript with DeepL (for double the cost).

Matthew Guay is a writer focused on software and productivity. Previously he was a writer for the automation platform Zapier and a founding editor of the software community Capiche. With more than 1,500 logins in his password manager, he has lost track of how much software he has tested.

Following the proper DEF refilling steps will keep your diesel exhaust fluid pure and your vehicle’s emissions system running smoothly. Let the tank get low, use the right nozzle, and prevent Contamination.

This is not a comprehensive list of all transcription services we have tested. We have removed any services that are no longer available or do not meet our current requirements.

On the other hand, AI transcription tools today rely on neural network transformer models that recognize words in spoken audio then infer the correct words and punctuation. Similar to the way predictive text on your keyboard recommends the next word, or ChatGPT gives answers, today’s transcription tools are, at a high level, guessing what you’re going to say next.

Diesel exhaust fluid (DEF) must be properly handled and stored to maintain quality and effectiveness. Here are some key considerations:

Paid transcription services should offer transcripts in a variety of formats, including Word and standard caption formats.

Rev offers both human and AI-powered transcription (the latter also powers Temi, a pick in an earlier version of this guide). It has the most modern, professional editor of the services we tested, with version control for edits and collaboration features to share transcripts (though collaborators cannot edit simultaneously). Unfortunately, it wasn’t as accurate as our current picks, with 98% accurate human transcription and only 98.6% accuracy with AI. Names were especially troublesome. Rev AI transcribed “Joel Embiid” as “Joelle and Bead,” wrote “friends” instead of “France,” and had odd issues with decimal numbers. Human transcriptions were better, but included some AI-like artifacts such as “as large as” being written as “f / f,” and meaning-changing mistakes including “caused” instead of “crossed.”

DEF should be stored in a cool, dry, and well-ventilated area. Avoid direct sunlight and extreme temperatures to maintain its efficacy.

Diesel exhaust fluid (DEF) primarily comprises urea and deionized water. Urea, which makes up around 67.5% of DEF, is a carbon, nitrogen, oxygen and hydrogen compound. It helps to convert the NOx emissions from diesel engines into nitrogen gas and water vapor.

Interestingly, the opening pangram in the final audio clip was merged together as a single word, just as in GoTranscript’s AI copy, leading us to wonder if the same core models underlie GoTranscripts’ AI transcription.

Avoid heat, sparks, open flames, strong oxidizers, and other ignition sources since DEF can combust under certain conditions despite not being directly flammable.

GoTranscript includes a basic online editor where you can download the transcript in plain text, PDF, or subtitle formats, customize speaker names, and edit the text. You can listen to your audio synced with the text, though you may need to re-upload your audio if it’s been days since ordering your transcript.

Vook.ai includes fewer editor features than GoTranscript, and it doesn’t offer any human-powered transcription or editing options. It’s also less competent at transcribing crosstalk than GoTranscript, which is important for recordings with multiple speakers.

Vook.ai is a highly accurate, AI-powered transcription service with one of the lowest prices we could find. On average, you’ll pay 5¢ per minute of audio transcribed—and will receive completed transcripts in less time than the duration of the audio recording, with speaker labels and timestamps.

We submitted these clips to each service, testing both AI and human transcription options where possible. With human transcription services, we added technical terms from the fourth script to the services’ custom dictionaries and paid for one-day turnaround time.

It keeps transcripts in-house. User data is stored on EU-based servers and RSA encrypted, and transcriptions run on an OpenAI Whisper model run on Vook.ai’s infrastructure. “Audio files or transcripts are not shared to any third party,” the Vook.ai team told us, unless users request DeepL translation or GPT-powered transcript summaries. Automated transcriptions don’t require a human to listen to audio or read the transcript, keeping transcription private by design. It’s not HIPAA certified, though, which makes GoTranscript a better choice for medical and legal use-cases if compliance is required.

After spending 35 hours testing 15 transcription tools, including human and AI-powered options, we found that GoTranscript is the best service for those who need the most accurate transcripts. If you’re willing to work with slightly less accurate but far faster AI transcription, Vook.ai is the best affordable transcription service.

Swallowing diesel exhaust fluid is harmful and requires immediate medical attention. Ingesting large amounts can potentially be life-threatening without swift treatment.

The need for a standalone transcription service, though, has become less critical. Automatic transcripts for meetings in apps like Slack and Microsoft Teams may be enough to get general notes. Automated YouTube transcripts could suffice when starting a new channel. If transcripts are only nice-to-have for your work, a free automated solution is best.

The lowest temperature at which a liquid can evaporate and combine with air to generate an ignitable combination is known as the flash point. Something needs to have a flash point of less than 100°F (37.8°C) in order to be flammable. DEF cannot catch fire or explode because it lacks a quantifiable flash point.

iOS 18, which rolls out to iPhones this fall, is jam-packed with AI-powered features like generative emoji, photo cleanup tools, and ChatGPT integration.

Nearly every new tech hardware and software update today promises new AI features. With OpenAI Whisper’s open-source model already providing more-accurate transcriptions than most human transcription services offered a few years ago, expect to see future models offer even greater accuracy.