Contact person: Similar to Hz Frequency Player

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Location: BAYSIDE, United States

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I want an exact working similar of the “Hz frequency player” I currently use, but with one important upgrade: it must accept and accurately play any frequency from 1 Hz all the way up to 48 kHz. Every function the original app offers—preset loading, manual frequency entry, sweep controls, looping, volume adjustment, start/stop toggles—needs to be carried over so the day-to-day workflow feels identical.

I’m open about how you build it (web, desktop, or mobile) as long as it reliably produces clean audio across the full range without artifacts. If you can keep the interface familiar to the existing player that would be ideal; otherwise, a straightforward layout that lets me type a value, hit play, and tweak the usual parameters is fine.

You’ll provide:
• A runnable build plus clear setup instructions.
• Source code with brief inline comments so I can maintain it later.
• A quick guide highlighting any new or changed shortcuts compared with the original tool.

Please tell me what tech stack you’d use, how you’ll verify the accuracy of extreme low- and high-frequency output, and roughly how long delivery will take." (client-provided description)