Selecting the Right Compression

The concept of compression hasn't changed much in the last many years, but the focus on understanding compression has shifted in a significant way. If we understand the different parameters involved in the compressor, we will be better able to choose the right technology for our patients.

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Selecting the Right Compression

The concept of compression hasn't changed much in the last many years, but the focus on understanding compression has shifted in a significant way. If we understand the different parameters involved in the compressor, we will be better able to choose the right technology for our patients.

from #Audiology via ola Kala on Inoreader http://ift.tt/2dcAEhj
via IFTTT

Selecting the Right Compression

The concept of compression hasn't changed much in the last many years, but the focus on understanding compression has shifted in a significant way. If we understand the different parameters involved in the compressor, we will be better able to choose the right technology for our patients.

from #Audiology via ola Kala on Inoreader http://ift.tt/2dcAEhj
via IFTTT

A Detection-Theoretic Analysis of Auditory Streaming and Its Relation to Auditory Masking

Research on hearing has long been challenged with understanding our exceptional ability to hear out individual sounds in a mixture (the so-called cocktail party problem). Two general approaches to the problem have been taken using sequences of tones as stimuli. The first has focused on our tendency to hear sequences, sufficiently separated in frequency, split into separate cohesive streams (auditory streaming). The second has focused on our ability to detect a change in one sequence, ignoring all others (auditory masking). The two phenomena are clearly related, but that relation has never been evaluated analytically. This article offers a detection-theoretic analysis of the relation between multitone streaming and masking that underscores the expected similarities and differences between these phenomena and the predicted outcome of experiments in each case. The key to establishing this relation is the function linking performance to the information divergence of the tone sequences, DKL (a measure of the statistical separation of their parameters). A strong prediction is that streaming and masking of tones will be a common function of DKL provided that the statistical properties of sequences are symmetric. Results of experiments are reported supporting this prediction.

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Clinically Paired Electrodes Are Often Not Perceived as Pitch Matched

For bilateral cochlear implant (CI) patients, electrodes that receive the same frequency allocation often stimulate locations in the left and right ear that do not yield the same perceived pitch, resulting in a pitch mismatch. This pitch mismatch may be related to degraded binaural abilities. Pitch mismatches have been found for some bilateral CI users and the goal of this study was to determine whether pitch mismatches are prevalent in bilateral CI patients, including those with extensive experience with bilateral CIs. To investigate this possibility, pitch matching was conducted with 16 bilateral CI patients. For 14 of the 16 participants, there was a significant difference between those electrodes in the left and right ear that yielded the same pitch and those that received the same frequency allocation in the participant’s clinical map. The results suggest that pitch mismatches are prevalent with bilateral CI users. The results also indicated that pitch mismatches persist even with extended bilateral CI experience. Such mismatches may reduce the benefits patients receive from bilateral CIs.

from #Audiology via xlomafota13 on Inoreader http://ift.tt/2d9lBlO
via IFTTT

A Detection-Theoretic Analysis of Auditory Streaming and Its Relation to Auditory Masking

Research on hearing has long been challenged with understanding our exceptional ability to hear out individual sounds in a mixture (the so-called cocktail party problem). Two general approaches to the problem have been taken using sequences of tones as stimuli. The first has focused on our tendency to hear sequences, sufficiently separated in frequency, split into separate cohesive streams (auditory streaming). The second has focused on our ability to detect a change in one sequence, ignoring all others (auditory masking). The two phenomena are clearly related, but that relation has never been evaluated analytically. This article offers a detection-theoretic analysis of the relation between multitone streaming and masking that underscores the expected similarities and differences between these phenomena and the predicted outcome of experiments in each case. The key to establishing this relation is the function linking performance to the information divergence of the tone sequences, DKL (a measure of the statistical separation of their parameters). A strong prediction is that streaming and masking of tones will be a common function of DKL provided that the statistical properties of sequences are symmetric. Results of experiments are reported supporting this prediction.

from #Audiology via ola Kala on Inoreader http://ift.tt/2cIFzFV
via IFTTT

Clinically Paired Electrodes Are Often Not Perceived as Pitch Matched

For bilateral cochlear implant (CI) patients, electrodes that receive the same frequency allocation often stimulate locations in the left and right ear that do not yield the same perceived pitch, resulting in a pitch mismatch. This pitch mismatch may be related to degraded binaural abilities. Pitch mismatches have been found for some bilateral CI users and the goal of this study was to determine whether pitch mismatches are prevalent in bilateral CI patients, including those with extensive experience with bilateral CIs. To investigate this possibility, pitch matching was conducted with 16 bilateral CI patients. For 14 of the 16 participants, there was a significant difference between those electrodes in the left and right ear that yielded the same pitch and those that received the same frequency allocation in the participant’s clinical map. The results suggest that pitch mismatches are prevalent with bilateral CI users. The results also indicated that pitch mismatches persist even with extended bilateral CI experience. Such mismatches may reduce the benefits patients receive from bilateral CIs.

from #Audiology via ola Kala on Inoreader http://ift.tt/2d9lBlO
via IFTTT