Aki Härmä's Publications List

Speaker Distance Detection using a Single Microphone

2010-12-22T18:48:36Z

A method to detect the distance of a speaker from a single microphone in a room environment is proposed. Several features, related to statistical parameters of speech source excitation signals, are introduced and are shown to depend on the distance between source and receiver. Those features are used to train a pattern recognizer for distance detection. The method is tested using a database of ...

Eleftheria Georganti, Tobias May, Steven van de Par, Aki Härmä, John Mourjopoulos (2011) IEEE Trans. Audio, Speech and Language Processing :

Classification of time-frequency regions in stereo audio

2011-11-24T22:24:49Z

Aki Härmä (2011) Journal of the Audio Engineering Society 59: 10

Stereo audio classification for audio enhancement

2011-01-24T22:15:27Z

A. Härmä (2011) Proc. IEEE Int. Conf. Acoust. Speech Signal Processing (ICASSP'2011)

Extraction of Voice from the Center of the Stereo Image

2011-05-30T18:43:03Z

Aki Härmä, Munhum Park (2011) AES 130th Convention preprint 8435

TEMPO ESTIMATION BASED ON LINEAR PREDICTION AND PERCEPTUAL MODELLING

2011-11-13T16:46:27Z

Many applications demand the automatic induction of the tempo of a musical excerpt. The tempo estimation systems follow a general scheme that consists of two main steps: the creation of a feature list and the detection of periodicities on this list. In this study, we propose a new method for the implementation of the ﬁrst step, along with the addition of a ﬁnal step that will enhance the...

Georgina Tryfou, Aki Härmä, and Athanasios Mouchtaris (2011) 12th International Society for Music Information Retrieval Conference (ISMIR 2011)

Estimation of the Energy Ratio Between Primary and Ambience Components in Stereo Audio Data

2011-11-13T16:40:13Z

Stereo audio signal is often modeled as a mixture of instantaneously mixed primary components and uncorrelated ambience components. This paper focuses on the estimation of the primary-to-ambience energy ratio, PAR. This measure is useful for signal decomposition in stereo and multichannel audio coding, format conversion, and spatial audio enhancement. The conventional approaches for the estimati...

Aki Härmä (2011) Proc. 19th European Signal Processing Conf. (EUSIPCO 2011)

Time-domain bandwidth extension of speech

2010-05-17T17:13:46Z

Bastian Reineke, Bert den Brinker, Aki Härmä (2010) Proceedings of the 31st Symposium on Information Theory in the Benelux 81-88

Classification of Time-Frequency Regions in Stereo Audio

2010-06-07T21:48:04Z

Aki Härmä (2010) AES 128th Convention preprint 7980

Comparison of the Width of Sound Sources in 2-Channel and 3-Channel Sound Reproduction

2010-06-07T21:47:40Z

Munhum Park, Aki Härmä, Steven van de Par, Georgia Tryfou (2010) AES 128th Convention Paper 8071

On efficient fusion of multi-view data for activity detection

2010-12-22T18:57:57Z

Tommi Määttä, Aki Härmä, Hamid Aghajan (2010) ACM/IEEE Int. Conf. Distributed Smart Cameras (ICDSC 2010)

Home-to-home communication using 3D shadows

2009-12-26T16:34:53Z

Tommi Määttä, Hamid Aghajan, Aki Härmä (2009) Immersive Telecommunications (IMMERSCOM 2009)

Ambient human-to-human communication

2009-12-26T17:54:19Z

A Härmä (2009) Handbook of Ambient Intelligence and Smart Environments 795-823

Ambient Telephony: Designing a Communication System for Enhancing Social Presence in Home Mediated Communication

2009-12-26T16:37:23Z

Jorge Peregrín Emparanza, Pavan Dadlani, Boris de Ruyter, Aki Härmä (2009) Proc. Int. Conf. Affective Computing and Intelligent Interaction

Single-Channel Sound Source Distance Estimation Based on Statistical and Source-Specific Features

2009-12-26T16:39:32Z

Eleftheria Georganti, Tobias May, Steven van de Par, Aki Härmä, John Mourjopoulos (2009) AES 126th Convention

Conversation detection in ambient telephony

2009-12-26T15:18:38Z

Aki Härmä, Kien Pham (2009) IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP' 2009)

On the use of directional speakers to create a sound source close to the listener

2009-12-26T16:24:04Z

Aki Härmä, Steven van de Par, Werner de Bruijn (2008) AES 124th Convention

Spatial audio rendering using sparse and distributed arrays

2009-12-26T16:16:54Z

Aki Härmä, Steven van de Par, Werner de Bruijn (2007) AES 122nd Convention

Comparison of Different Sound Capture and Reproduction Techniques in a Virtual Acoustic Window

2010-06-07T21:49:52Z

Timo Haapsaari, Werner de Bruijn, Aki Härmä (2007) AES 122nd Convention

Ambient telephony: scenarios and research challenges

2009-12-26T16:19:26Z

A Härmä (2007) INTERSPEECH 2007

Spatial track transition effects for headphone listening

2009-12-26T16:22:19Z

Aki Härmä, Steven van de Par (2007) Proc. 10th DAFx Conference

Parametric representations of bird sounds for automatic species recognition

2009-12-26T16:03:37Z

P Somervuo, A Härmä, S Fagerlund (2006) IEEE Trans. Speech Audio Processing 14: 6 2252 - 2263

Online acoustic measurements in a networked audio system

2009-12-26T16:14:18Z

A Härmä (2006) AES 120th Convention

Parametrization of inharmonic bird sounds for automatic recognition

2009-12-26T17:46:10Z

S Fagerlund, A Härmä (2005) Proc. EUSIPCO’2005

Automatic surveillance of the acoustic activity in our living environment

2009-12-26T15:26:59Z

A Härmä, M F McKinney, J Skowronek (2005) Proc. Int. Conf. Multimedia and Expo (ICME’2005) :

Automatic estimation of reverberation time from binaural signals

2009-12-26T17:19:04Z

S Vesa, A Härmä (2005) Proc. ICASSP’2005

Manipulation of the vocal tract filter in real-time speech modification

2010-01-17T13:01:10Z

A. Härmä and A.C. den Brinker (2005) 4th Philips Conference on Digital Signal Processing

Time-frequency datagrams for the estimation of acoustic paths in networked audio systems

2010-01-17T12:58:37Z

Aki Härmä and Peter Voorwinden (2005) 4th Philips Conference on Digital Signal Processing

Volume control in networked audio systems

2009-12-26T19:45:04Z

A Härmä, A. van Leest, R. Thaden (2005) Proc. IEEE IWAENC 2005

Acoustic monitoring of the patterns of activity in the office and the garden

2009-12-26T16:12:34Z

Aki Härmä, Janto Skowronek , Martin F. McKinney (2005) Proc. Measuring Behaviour 2005

Problem of far-end user’s voice in binaural telephony

2009-12-26T15:49:02Z

T Lokki, H Nironen, S Vesa, L Savioja, A Härmä (2004) 18th International Congress on Acoustics (ICA 2004)

Head-tracking and subject positioning using binaural headset microphones and common modulation anchor sources

2009-12-26T15:48:32Z

M Karjalainen, M Tikander, A Härmä (2004) IEEE Int. Conf. Acoustics, Speech, and Signal Processing (ICASSP’04)

Application Scenarios of Wearable and Mobile Augmented Reality Audio

2009-12-27T17:46:19Z

T Lokki, H Nironen, S Vesa, L Savioja, A Härmä, M Karjalainen (2004) AES 116th Convention

Spatial decomposition of time-frequency regions : subbands or sinusoids

2009-12-27T17:46:00Z

Aki Härmä, Christof Faller (2004) AES 116th Convention

Augmented reality audio for mobile and wearable appliances

2009-12-26T18:00:41Z

A Härmä, J Jakka, M Tikander, M Karjalainen, T Lokki, J Hiipakka, G Lorho (2004) J. Audio Engineering Society 52: 6 618-639

Acoustic positioning and head tracking based on binaural signals

2009-12-27T17:46:38Z

M Tikander, A Härmä, M Karjalainen (2004) AES 116th Convention

Bird song recognition based on syllable pair histograms

2009-12-26T15:48:12Z

P Somervuo, A Härmä (2004) IEEE Int. Conf. Acoustics, Speech, and Signal Processing (ICASSP’04)

Classification of the harmonic structure in bird vocalization

2009-12-26T15:47:43Z

A Härmä, P Somervuo (2004) IEEE Int. Conf. Acoustics, Speech, and Signal Processing (ICASSP’04)

Analyzing bird song syllables on the Self-Organizing Map

2009-12-26T15:49:44Z

P Somervuo, A Härmä (2003) Proc. of Workshop on Self-Organizing Maps (WSOM ’03)

Automatic recognition of bird species based on sinusoidal modeling of syllables

2009-12-26T17:37:39Z

A Härmä (2003) IEEE Int. Conf. Acoustics, Speech, Signal Processing (ICASSP 2003) 535-538

Binaural Positioning System for Wearable Augmented Reality Audio

2009-12-26T15:49:56Z

M Tikander, A Härmä, M Karjalainen (2003) Proceedings of the IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA’01)

Techniques and applications of wearable augmented reality audio

2009-12-26T17:38:23Z

A Härmä, J Jakka, M Tikander, M Karjalainen, T Lokki, H Nironen, S Vesa (2003) AES 114th Convention Paper

A Method for Parametrization of Time-Varying Sounds

2009-12-26T15:30:02Z

A Härmä, M Juntunen (2002) IEEE Signal Processing Letters 9: 5 151-153

Low Delay Audio Compression using Predictive Coding

2009-12-26T15:50:10Z

G Schuller, A Härmä (2002) Proc. IEEE Int. Conf. Acoustics, Speech, and Signal Processing

Drawing quality maps of the sweet spot and its surroundings in multichannel reproduction and coding

2009-12-26T17:39:25Z

A Härmä, Tapio Lokki, Ville Pulkki (2002) Proc. AES 21st International Conference

Coding principles for virtual acoustic openings

2009-12-26T17:38:54Z

A Härmä (2002) Proc. AES 22nd International Conference on Virtual, Synthetic and Entertainment Audio

Modeling and Equalization of Audio Systems Using Kautz Filters

2009-12-26T15:50:25Z

T Paatero, M Karjalainen, A Härmä (2001) Proc. IEEE Int. Conf. Acoustics, Speech, and Signal Processing 434-437

Discrete representation of signals on a logarithmic frequency scale

2009-12-26T17:40:09Z

A Härmä, T Paatero (2001) Proceedings of the IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA’01) 135-138

Linear predictive coding with modified filter structures

2009-12-26T17:34:13Z

A Härmä (2001) IEEE Trans. Speech Audio Processing 9: 8 769-777

Frequency-warped autoregressive modeling and filtering

2009-12-26T15:59:12Z

A Härmä, (2001)

A comparison of warped and conventional linear predictive coding

2009-12-26T17:34:37Z

A Härmä, U K Laine (2001) IEEE Trans. Speech Audio Processing 9: 5 579-588

Morphing Instrument Body Models

2009-12-26T15:51:00Z

H Penttinen, M Karjalainen, A Härmä (2001) Proceedings of the COST-G6 Conference on Digital Audio Effects (DAFx01)

Frequency-warped signal processing for audio applications

2009-12-26T17:35:31Z

A Härmä, M Karjalainen, L Savioja, V Välimäki, U K Laine, J Huopaniemi (2000) J. Audio Eng. Soc. 48: 11 1011-1031

Digital guitar body mode modulation with one driving parameter

2009-12-26T15:52:09Z

H Penttinen, A Härmä, M Karjalainen (2000) Proc. COST-G6 Conf. Digital Audio Effects (DAFx’00)

Evaluation of a warped linear predictive coding scheme

2009-12-26T15:51:31Z

A Härmä (2000) Proc. IEEE Int. Conf. Acoustics, Speech, and Signal Processing 897-900

Frequency-warped signal processing for audio applications

2009-12-26T19:53:03Z

A Härmä, M Karjalainen, L Savioja, V Välimäki, U K Laine, J Huopaniemi (2000) AES 108th Convention, preprint 5171 (T-5)

Implementation of frequency-warped recursive filters

2009-12-26T17:34:59Z

A Härmä (2000) Signal Processing 80: 3 543-548

Subjective evaluation of LSF quantization in conventional and warped LP based audio coding

2009-12-26T15:51:46Z

M Vaalgamaa, A Härmä, U K Laine (2000) Accepted for publ. in Signal Processing X : Theories and Applications 2065-2068

Time-varying autoregressive modeling of speech and audio signals

2009-12-26T17:40:57Z

A Härmä, M Juntunen, P Kaipio (2000) Signal Processing X : Theories and Applications 2037-2040

On the utilization of overshoot effects in low-delay audio coding

2009-12-26T17:41:39Z

A Härmä (1999) Proc. IEEE Int. Conf. Acoustics, Speech, and Signal Processing 893-896

Audio coding with auditory time-frequency noise shaping and irrelevancy reducing vector quantization

2009-12-26T15:53:04Z

M Vaalgamaa, A Härmä, U K Laine (1999) Proc. AES 17th Int. Conference : High-Quality Audio Coding 182-188

Warped Low-Delay CELP for Wide-band Audio Coding

2009-12-26T17:42:24Z

A Härmä, U K Laine (1999) Proc. AES 17th Int. Conference : High-Quality Audio Coding 207-215

Low-level auditory modeling of temporal effects

2009-12-26T15:52:34Z

A Härmä (1999) 16th Int. Joint Conf. on Artificial Intelligence, Workshop on Computational Auditory Scene Analysis 1-9

HUTear – a free Matlab toolbox for modeling of human hearing

2009-12-26T15:53:24Z

A Härmä, K Palomäki (1999) Proc. Matlab DSP Conference 1999 96-99

Backward adaptive warped lattice for wideband stereo coding

2009-12-26T17:43:32Z

A Härmä, U K Laine, M Karjalainen (1998) Signal Processing IX : Theories and Applications, EUSIPCO’98 729-732

Signal modulation approach to data sonification

2009-12-26T15:53:45Z

M Gröhn, J Backman, A Härmä (1998) Proc. SPIE’98 53-62

Implementation of recursive filters having delay free loops

2009-12-26T15:54:04Z

A Härmä (1998) Proc. IEEE Int. Conf. Acoustics, Speech, and Signal Processing 1261-1264

A Warped Linear Predictive Stereo Codec Using Temporal Noise Shaping

2009-12-26T15:54:16Z

A Härmä, M Vaalgamaa, U K Laine (1998) Proc. Nordic Signal Proc. Symposium, NORSIG’98 229-232

Audio coding with warped predictive methods (Licentiate's Thesis)

2009-12-26T18:29:02Z

A Härmä, (1998)

Warped linear predictive audio coding in video conferencing application

2009-12-26T19:58:05Z

K Palomäki, A Härmä, U K Laine (1998) Signal Processing IX : Theories and Applications, EUSIPCO’98 1433-1436

Äänisignaalien säröt ja vääristymät : tekniset mitat ja psykoakustiikka

2009-12-26T15:42:19Z

A Härmä (1998) Akustiikan ja äänenkäsittelytekniikan laboratorion raportti

Fraktaalit, Kaaos ja äänisignaalit

2009-12-26T15:42:59Z

A Härmä (1998) Akustiikan ja äänenkäsittelytekniikan laboratorion raportti

An Experimental Audio Codec based on Warped Linear Prediction of Complex Valued Signals

2009-12-26T17:43:01Z

A Härmä, U K Laine, M Karjalainen (1997) Proc. IEEE Int. Conf. Acoustics, Speech, and Signal Processing 323-327

WLPAC – A Perceptual Audio Codec in a Nutshell

2009-12-26T15:55:01Z

A Härmä, U K Laine, M Karjalainen (1997) AES 102nd Conv. preprint 4420

Sisäkorvan simpukan laskennallinen mallintaminen

2009-12-26T15:43:23Z

A Härmä (1997) Akustiikan laskennallinen mallintaminen – Akustiikan ja äänenkäsittelytekniikan laboratorion raportti

Kuulonmukaiset taajuusasteikot

2009-12-26T15:55:57Z

A Härmä (1997) Akustiikkapäivät 97

Realizable Warped IIR Filters and Their Properties

2009-12-26T15:55:25Z

M Karjalainen, A Härmä, U K Laine (1997) Proc. IEEE Int. Conf. Acoustics, Speech, and Signal Processing 2205-2209

Perceptual aspects and warped techniques in audio coding (Master's Thesis)

2009-12-26T18:29:41Z

A Härmä, (1997)

Warped Filters and Their Audio Applications

2009-12-26T15:55:37Z

M Karjalainen, A Härmä, J Huopaniemi, U K Laine (1997) IEEE Workshop Appl. Signal Proc. Acoust. and Audio

Bark-FAMlet filterbanks

2009-12-26T15:56:12Z

U K Laine, A Härmä (1996) Proc. Nordic Acoustical Meeting 277-284

Kuulon taajuusresoluutio ja sen mallintaminen

2009-12-26T15:43:59Z

A Härmä (1996) Digitaaliaudion signaalinkäsittelymenetelmiö'ä – Akustiikan ja äänenkäsittelytekniikan laboratorion raportti 41

Realizable Warped IIR Filter Structures

2009-12-26T15:56:37Z

M Karjalainen, A Härmä, U K Laine (1996) Proc. of the IEEE Nordic Signal Proc. Symposium, NORSIG 96 483-486

Warped Linear Prediction in Audio Coding

2009-12-26T15:56:24Z

A Härmä, U K Laine, M Karjalainen (1996) Proc. IEEE Nordic Signal Proc. Symposium, NORSIG’96 447-450