Transient is the most hyped, abused and trendy word in GS. A transient is a short-duration signal that represents a nonharmonic attack phase of a sound source. It contains a high degree of nonperiodic components and a higher magnitude of high frequencies than the harmonic content of that sound.
But like any estimate, it's based on some rounded numbers and rules of thumb. For example, this mortgage affordability calculator assumes that your monthly mortgage payment should be no more than 28% of your monthly income, to leave enough money for other expenses and investments you'll want to make.
Here's the super-quick rule of thumb: Most people can afford a home that costs up to three times their annual household income. If you have little to no debt and can put 20% down you can probably buy a house worth close to four times your annual income. Example: If you and your spouse together make $60,000 a year (which was the median household income. If you're single and make $35,000 a year, then you can probably afford only about a $105,000 home. But in most parts of the country, you can't buy homes that cheap.