Question 1

Which audio file formats are accepted?

Accepted Answer

We accept WAV, FLAC, AIFF and MP3 (minimum 320 kbps). For precise frequency analysis, we recommend uncompressed formats such as WAV or FLAC.

Question 2

How long does certification take?

Accepted Answer

After receiving all documents, the review typically takes 3–5 business days. For complex projects or multiple titles, it may take slightly longer.

Question 3

What does certification cost?

Accepted Answer

Costs depend on the scope and number of titles to be reviewed. Contact us for an individual quote.

Question 4

How long is the certificate valid?

Accepted Answer

Certificates are generally valid for 12 months. Renewal is possible as long as the audio material remains unchanged.

Question 5

Can I embed the badge on my website?

Accepted Answer

Yes. Certified clients receive a personal badge link with embeddable HTML code and an SVG file for print and web.

Question 6

Is the certificate publicly accessible?

Accepted Answer

Yes. All active certificates are viewable and verifiable in the public Sound Certified directory at sound-certified.ch/zertifikate.

Question 7

Which frequencies can be certified?

Accepted Answer

Essentially all declared tuning frequencies, e.g. 432 Hz, 528 Hz, 396 Hz or other Solfeggio frequencies. The key requirement is a clear frequency specification.

Question 8

What happens if the review is not passed?

Accepted Answer

You will receive a detailed measurement report showing the deviations. A re-review after correcting the audio material is possible.

Question 9

Is the certificate valid for international markets?

Accepted Answer

Yes. Sound Certified is an independent standard without geographic restrictions. The certificate and badge can be used worldwide.

Question 10

Can I submit multiple titles at once?

Accepted Answer

Yes. For larger productions or labels, we offer package pricing. Please contact us.

Question 11

How does Sound Certified differ from Swiss Certified?

Accepted Answer

Swiss Certified certifies companies and products meeting Swiss quality standards. Sound Certified is specifically focused on audio material with frequency specifications – regardless of country of origin.