Abstract
Signal frequency estimation is a problem of significance in many applications including audio signal processing. Compressed domain audio frequency estimators that directly use the modified discrete cosine transform (MDCT) coefficients are suitable for low-complexity audio applications. A new frequency estimation approach, which can obtain the estimated value from a simple combination of three MDCT coefficients, is proposed herein. It exploits the underlying relation among adjacent MDCT values and provides a general form of this type of estimators. The estimator manifests obvious computational advantages over other MDCT domain estimators and is suitable for high signal-to-noise ratio (SNR) conditions.
| Original language | English |
|---|---|
| Article number | 8 |
| Journal | Eurasip Journal on Audio, Speech, and Music Processing |
| Volume | 2017 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Dec 2017 |
Keywords
- Audio
- Frequency estimation
- Low complexity
- MDCT