The Change Speed (ny) Audacity plugin allows users to change the speed of their audio with either a new duration or a new speed as a percentage. This plugin is coded in Nyquist, a programming language specifically designed for digital audio manipulation. When users select the “New Duration” option, they can enter the desired duration as two numbers (minutes and seconds). When they select the “New Speed as Percent” option, they can enter a percentage between 0 and 800%. A value of 100% is normal speed (no change), 200% is twice as fast (half the duration) and 50% is half speed (double the duration). The plugin also offers two stretching methods: high-quality and low-quality. High-quality conversion uses Nyquist’s high-quality interpolation and low-quality conversion uses linear interpolation. Depending on the desired outcome, users can switch between these two methods.
To change the speed of your audio with high quality interpolation, open your project in Audacity and select the track you want to modify. In the menu select Effect > Change Speed (ny)... and a window will open. In the "Select input control" drop down menu, select "New Duration, as Percent". Then enter the required duration as two numbers in the "New Duration" field (minutes and seconds). In the "Stretching method" drop down menu, select "High Quality". Finally, click "OK" to apply the effect.
Adjust Audio Duration with Low Quality Interpolation is a plugin for Audacity that allows you to change the duration of an audio clip without changing its pitch. It does this by stretching or compressing the audio clip with linear interpolation. To use this plugin, open the audio clip in Audacity and select the 'Change Speed (ny)...' plugin from the 'Effect' menu. In the 'Select input control' dropdown, choose 'New Duration,as Percent'. In the 'New Duration' field, enter the required duration as two numbers (minutes seconds). In the 'New Speed as Percent' field, enter the percentage of the original speed that you would like the audio clip to play at. In the 'Stretching method' dropdown, choose 'Low Quality'. Finally, click 'OK' to apply the effect.
To increase the speed of an audio file by 200% using the Change Speed (ny) plugin in Audacity: 1. Open the audio file you wish to speed up in Audacity. 2. Select the audio by clicking and dragging your mouse across the waveform. 3. Go to the Effect menu, then select Change Speed (ny)... 4. In the Change Speed (ny) window, select New Speed as Percent from the Select input control dropdown menu. 5. Enter 200 in the New Speed as Percent field. 6. Select High Quality from the Stretching method dropdown menu. 7. Click OK. The audio will now be sped up by 200%.
To halve the duration of your audio with the 'New Speed as Percent' option, you will need to use the Audacity plugin 'Change Speed (ny)...'. This plugin allows you to change the speed of the selected audio, while also changing the pitch and tempo. To achieve a halved duration, you need to enter 50% in the 'New Speed as Percent' control. This will cause the audio to play at half the speed, resulting in a final duration that is double the original. Once you have entered the desired value, click the 'Stretching...' button to apply the effect. You should now have a halved audio duration.
Double Audio Duration with New Duration is a feature in the Change Speed (ny) Audacity plugin that allows you to double the duration of your audio by entering a new duration. To use this feature, open your audio file in Audacity, select the audio you want to modify, and then open the Change Speed (ny) plugin. In the plugin window, select the “New Duration” option under the “Select input control” dropdown menu. Then, enter the required duration as two numbers in the “New Duration” field (for example, if you want to double the duration of your audio, enter “2 0” in the field). Under the “Stretching method” dropdown menu, select either “High Quality” or “Low Quality”. High Quality conversion uses Nyquist's high-quality interpolation, while Low Quality conversion uses linear interpolation. When you’re done, click “OK” to apply the changes. Your audio should now be double the original duration.
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